configure

#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69 for PLUMED 2.
#
#
# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
#
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi


as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='print -r --'
  as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='printf %s\n'
  as_echo_n='printf %s'
else
  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
    as_echo_n='/usr/ucb/echo -n'
  else
    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
    as_echo_n_body='eval
      arg=$1;
      case $arg in #(
      *"$as_nl"*)
	expr "X$arg" : "X\\(.*\\)$as_nl";
	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
      esac;
      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
    '
    export as_echo_n_body
    as_echo_n='sh -c $as_echo_n_body as_echo'
  fi
  export as_echo_body
  as_echo='sh -c $as_echo_body as_echo'
fi

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# IFS
# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" ""	$as_nl"

# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi

# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there.  '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

# Use a proper internal environment variable to ensure we don't fall
  # into an infinite loop, continuously re-executing ourselves.
  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
    _as_can_reexec=no; export _as_can_reexec;
    # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
as_fn_exit 255
  fi
  # We don't want this to propagate to other subprocesses.
          { _as_can_reexec=; unset _as_can_reexec;}
if test "x$CONFIG_SHELL" = x; then
  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
else
  case \`(set -o) 2>/dev/null\` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi
"
  as_required="as_fn_return () { (exit \$1); }
as_fn_success () { as_fn_return 0; }
as_fn_failure () { as_fn_return 1; }
as_fn_ret_success () { return 0; }
as_fn_ret_failure () { return 1; }

exitcode=0
as_fn_success || { exitcode=1; echo as_fn_success failed.; }
as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :

else
  exitcode=1; echo positional parameters were not saved.
fi
test x\$exitcode = x0 || exit 1
test -x / || exit 1"
  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
test \$(( 1 + 1 )) = 2 || exit 1"
  if (eval "$as_required") 2>/dev/null; then :
  as_have_required=yes
else
  as_have_required=no
fi
  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :

else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_found=false
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  as_found=:
  case $as_dir in #(
	 /*)
	   for as_base in sh bash ksh sh5; do
	     # Try only shells that exist, to save several forks.
	     as_shell=$as_dir/$as_base
	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
  CONFIG_SHELL=$as_shell as_have_required=yes
		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
  break 2
fi
fi
	   done;;
       esac
  as_found=false
done
$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
  CONFIG_SHELL=$SHELL as_have_required=yes
fi; }
IFS=$as_save_IFS


      if test "x$CONFIG_SHELL" != x; then :
  export CONFIG_SHELL
             # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
exit 255
fi

    if test x$as_have_required = xno; then :
  $as_echo "$0: This script requires a shell more modern than all"
  $as_echo "$0: the shells that I found on your system."
  if test x${ZSH_VERSION+set} = xset ; then
    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
  else
    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
$0: including any error possibly output before this
$0: message. Then install a modern shell, or manually run
$0: the script under such a shell if you do have one."
  fi
  exit 1
fi
fi
fi
SHELL=${CONFIG_SHELL-/bin/sh}
export SHELL
# Unset more variables known to interfere with behavior of common tools.
CLICOLOR_FORCE= GREP_OPTIONS=
unset CLICOLOR_FORCE GREP_OPTIONS

## --------------------- ##
## M4sh Shell Functions. ##
## --------------------- ##
# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset

# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p

# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  $as_echo "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error

if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits


  as_lineno_1=$LINENO as_lineno_1a=$LINENO
  as_lineno_2=$LINENO as_lineno_2a=$LINENO
  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
  sed -n '
    p
    /[$]LINENO/=
  ' <$as_myself |
    sed '
      s/[$]LINENO.*/&-/
      t lineno
      b
      :lineno
      N
      :loop
      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
      t loop
      s/-\n.*//
    ' >$as_me.lineno &&
  chmod +x "$as_me.lineno" ||
    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }

  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
  # already done that, so ensure we don't try to do so again and fall
  # in an infinite loop.  This has already happened in practice.
  _as_can_reexec=no; export _as_can_reexec
  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensitive to this).
  . "./$as_me.lineno"
  # Exit status is that of the last command.
  exit
}

ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null

if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


test -n "$DJDIR" || exec 7<&0 </dev/null
exec 6>&1

# Name of the host.
# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_clean_files=
ac_config_libobj_dir=.
LIBOBJS=
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=

# Identity of this package.
PACKAGE_NAME='PLUMED'
PACKAGE_TARNAME='plumed'
PACKAGE_VERSION='2'
PACKAGE_STRING='PLUMED 2'
PACKAGE_BUGREPORT=''
PACKAGE_URL=''

# Factoring default headers for most tests.
ac_includes_default="\
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
#  include <stdlib.h>
# endif
#endif
#ifdef HAVE_STRING_H
# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
#  include <memory.h>
# endif
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif"

ac_subst_vars='LTLIBOBJS
LIBOBJS
build_dir
program_name
pkgconfig_bin
make_static_archive
AR_CR
LD_RO
use_loader_path
use_absolute_soname
program_can_run_mpi
program_can_run
make_pdfdoc
dot
doxygen
make_doc
readelf
LD_MAIN_RUNPATH
use_debug_glibcxx
PYTHON_BUILD_FOUND
OPENMP_CXXFLAGS
EGREP
GREP
CXXCPP
disable_dependency_tracking
ac_ct_FC
FCFLAGS
FC
ac_ct_CC
CFLAGS
CC
OBJEXT
EXEEXT
ac_ct_CXX
CPPFLAGS
LDFLAGS
CXXFLAGS
CXX
PLUMED_ACC_GPU
PLUMED_ACC_TYPE
MPIEXEC
BASH_COMPLETION_DIR
PYTHON_BIN
LDSHARED
STATIC_LIBS
SOEXT
target_alias
host_alias
build_alias
LIBS
ECHO_T
ECHO_N
ECHO_C
DEFS
mandir
localedir
libdir
psdir
pdfdir
dvidir
htmldir
infodir
docdir
oldincludedir
includedir
localstatedir
sharedstatedir
sysconfdir
datadir
datarootdir
libexecdir
sbindir
bindir
program_transform_name
prefix
exec_prefix
PACKAGE_URL
PACKAGE_BUGREPORT
PACKAGE_STRING
PACKAGE_VERSION
PACKAGE_TARNAME
PACKAGE_NAME
PATH_SEPARATOR
SHELL'
ac_subst_files=''
ac_user_opts='
enable_option_checking
enable_modules
enable_libsearch
enable_static_patch
enable_doc
enable_pdfdoc
enable_debug
enable_gcov
enable_cxx
enable_basic_warnings
enable_fussy
enable_debug_glibcxx
enable_shared
enable_dependency_tracking
enable_no_gnu_unique
enable_rpath
enable_absolute_soname
enable_absolute_install_name
enable_loader_path
enable_bsymbolic
enable_ld_r
enable_ar_cr
enable_static_archive
enable_asmjit
enable_mpi
enable_external_lapack
enable_external_blas
enable_molfile_plugins
enable_external_molfile_plugins
enable_zlib
enable_dlopen
enable_dladdr
enable_rtld_default
enable_subprocess
enable_execinfo
enable_gsl
enable_boost_graph
enable_boost_serialization
enable_fftw
enable_python
enable_af_ocl
enable_af_cuda
enable_af_cpu
enable_libtorch
enable_libmetatomic
enable_linuxperf
enable_openacc
enable_openmp
'
      ac_precious_vars='build_alias
host_alias
target_alias
SOEXT
STATIC_LIBS
LDSHARED
PYTHON_BIN
BASH_COMPLETION_DIR
MPIEXEC
PLUMED_ACC_TYPE
PLUMED_ACC_GPU
CXX
CXXFLAGS
LDFLAGS
LIBS
CPPFLAGS
CCC
CC
CFLAGS
FC
FCFLAGS
CXXCPP'


# Initialize some variables set by options.
ac_init_help=
ac_init_version=false
ac_unrecognized_opts=
ac_unrecognized_sep=
# The variables have the same names as the options, with
# dashes changed to underlines.
cache_file=/dev/null
exec_prefix=NONE
no_create=
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
verbose=
x_includes=NONE
x_libraries=NONE

# Installation directory options.
# These are left unexpanded so users can "make install exec_prefix=/foo"
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
# (The list follows the same order as the GNU Coding Standards.)
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datarootdir='${prefix}/share'
datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
infodir='${datarootdir}/info'
htmldir='${docdir}'
dvidir='${docdir}'
pdfdir='${docdir}'
psdir='${docdir}'
libdir='${exec_prefix}/lib'
localedir='${datarootdir}/locale'
mandir='${datarootdir}/man'

ac_prev=
ac_dashdash=
for ac_option
do
  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval $ac_prev=\$ac_option
    ac_prev=
    continue
  fi

  case $ac_option in
  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
  *=)   ac_optarg= ;;
  *)    ac_optarg=yes ;;
  esac

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case $ac_dashdash$ac_option in
  --)
    ac_dashdash=yes ;;

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir=$ac_optarg ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build_alias ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build_alias=$ac_optarg ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file=$ac_optarg ;;

  --config-cache | -C)
    cache_file=config.cache ;;

  -datadir | --datadir | --datadi | --datad)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=*)
    datadir=$ac_optarg ;;

  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
  | --dataroo | --dataro | --datar)
    ac_prev=datarootdir ;;
  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
    datarootdir=$ac_optarg ;;

  -disable-* | --disable-*)
    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid feature name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"enable_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval enable_$ac_useropt=no ;;

  -docdir | --docdir | --docdi | --doc | --do)
    ac_prev=docdir ;;
  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
    docdir=$ac_optarg ;;

  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
    ac_prev=dvidir ;;
  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
    dvidir=$ac_optarg ;;

  -enable-* | --enable-*)
    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid feature name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"enable_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval enable_$ac_useropt=\$ac_optarg ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix=$ac_optarg ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he | -h)
    ac_init_help=long ;;
  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
    ac_init_help=recursive ;;
  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
    ac_init_help=short ;;

  -host | --host | --hos | --ho)
    ac_prev=host_alias ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host_alias=$ac_optarg ;;

  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
    ac_prev=htmldir ;;
  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
  | --ht=*)
    htmldir=$ac_optarg ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir=$ac_optarg ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir=$ac_optarg ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir=$ac_optarg ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir=$ac_optarg ;;

  -localedir | --localedir | --localedi | --localed | --locale)
    ac_prev=localedir ;;
  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
    localedir=$ac_optarg ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst | --locals)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
    localstatedir=$ac_optarg ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir=$ac_optarg ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c | -n)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir=$ac_optarg ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix=$ac_optarg ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix=$ac_optarg ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix=$ac_optarg ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name=$ac_optarg ;;

  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
    ac_prev=pdfdir ;;
  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
    pdfdir=$ac_optarg ;;

  -psdir | --psdir | --psdi | --psd | --ps)
    ac_prev=psdir ;;
  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
    psdir=$ac_optarg ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir=$ac_optarg ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir=$ac_optarg ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site=$ac_optarg ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir=$ac_optarg ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir=$ac_optarg ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target_alias ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target_alias=$ac_optarg ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers | -V)
    ac_init_version=: ;;

  -with-* | --with-*)
    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid package name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"with_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval with_$ac_useropt=\$ac_optarg ;;

  -without-* | --without-*)
    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid package name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"with_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval with_$ac_useropt=no ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes=$ac_optarg ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries=$ac_optarg ;;

  -*) as_fn_error $? "unrecognized option: \`$ac_option'
Try \`$0 --help' for more information"
    ;;

  *=*)
    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
    # Reject names that are not valid shell variable names.
    case $ac_envvar in #(
      '' | [0-9]* | *[!_$as_cr_alnum]* )
      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
    esac
    eval $ac_envvar=\$ac_optarg
    export $ac_envvar ;;

  *)
    # FIXME: should be removed in autoconf 3.0.
    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
    ;;

  esac
done

if test -n "$ac_prev"; then
  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
  as_fn_error $? "missing argument to $ac_option"
fi

if test -n "$ac_unrecognized_opts"; then
  case $enable_option_checking in
    no) ;;
    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
  esac
fi

# Check all directory arguments for consistency.
for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
		datadir sysconfdir sharedstatedir localstatedir includedir \
		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
		libdir localedir mandir
do
  eval ac_val=\$$ac_var
  # Remove trailing slashes.
  case $ac_val in
    */ )
      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
      eval $ac_var=\$ac_val;;
  esac
  # Be sure to have absolute directory names.
  case $ac_val in
    [\\/$]* | ?:[\\/]* )  continue;;
    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
  esac
  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
done

# There might be people who depend on the old broken behavior: `$host'
# used to hold the argument of --host etc.
# FIXME: To remove some day.
build=$build_alias
host=$host_alias
target=$target_alias

# FIXME: To remove some day.
if test "x$host_alias" != x; then
  if test "x$build_alias" = x; then
    cross_compiling=maybe
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null


ac_pwd=`pwd` && test -n "$ac_pwd" &&
ac_ls_di=`ls -di .` &&
ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
  as_fn_error $? "working directory cannot be determined"
test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
  as_fn_error $? "pwd does not report name of working directory"


# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then the parent directory.
  ac_confdir=`$as_dirname -- "$as_myself" ||
$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_myself" : 'X\(//\)[^/]' \| \
	 X"$as_myself" : 'X\(//\)$' \| \
	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_myself" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r "$srcdir/$ac_unique_file"; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r "$srcdir/$ac_unique_file"; then
  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
fi
ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
ac_abs_confdir=`(
	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
	pwd)`
# When building in place, set srcdir=.
if test "$ac_abs_confdir" = "$ac_pwd"; then
  srcdir=.
fi
# Remove unnecessary trailing slashes from srcdir.
# Double slashes in file names in object file debugging info
# mess up M-x gdb in Emacs.
case $srcdir in
*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
esac
for ac_var in $ac_precious_vars; do
  eval ac_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_env_${ac_var}_value=\$${ac_var}
  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_cv_env_${ac_var}_value=\$${ac_var}
done

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures PLUMED 2 to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/plumed]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]
_ACEOF

  cat <<\_ACEOF

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
_ACEOF
fi

if test -n "$ac_init_help"; then
  case $ac_init_help in
     short | recursive ) echo "Configuration of PLUMED 2:";;
   esac
  cat <<\_ACEOF

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-modules        all/none/reset or : separated list such as
                          +crystallization:-bias default: reset
  --enable-libsearch      enable search for libraries, default: yes
  --enable-static-patch   enable allow statically linking plumed, default: yes
  --enable-doc            enable documentation, default: yes
  --enable-pdfdoc         enable pdf version of the manual, default: no
  --enable-debug          enable debugging, default: no
  --enable-gcov           enable gcov to estimate code coverage, default: no
  --enable-cxx            17, 20, or 23. To link libraries with headers that
                          need this C++ level. Use --enable-cxx=none to remove
                          -std=c++ flag
  --enable-basic-warnings enable basic warnings, default: yes
  --enable-fussy          enable fussy warnings, ignored if basic-warnings is
                          disabled, default: no
  --enable-debug-glibcxx  enable enable boundary check, default: no
  --enable-shared         enable shared libs, default: yes
  --enable-dependency-tracking
                          enable dependency tracking, default: yes
  --enable-no-gnu-unique  enable a flag to avoid gnu unique symbols, default:
                          yes
  --enable-rpath          enable store rpath, default: no
  --enable-absolute-soname
                          enable store absolute soname (Linux only - this is
                          the default behavior on OSX). Only enable for
                          testing!, default: no
  --enable-absolute-install-name
                          enable store absolute relative (OSX only - disable
                          to have a behavior similar to Linux). Only disable
                          for testing!, default: yes
  --enable-loader-path    enable use @loader_path to find
                          libplumedKernel.dylib (OSX only), default: yes
  --enable-bsymbolic      enable use -Bsymbolic flag in making shared
                          libraries (Linux only), default: yes
  --enable-ld-r           enable group object files, default: yes
  --enable-ar-cr          enable use ar to build libplumedWrapper.a, default:
                          yes
  --enable-static-archive enable try to build libplumed.a for static linking,
                          default: yes
  --enable-asmjit         enable enable embedded asmjit, default: yes
  --enable-mpi            enable search for mpi, default: yes
  --enable-external-lapack
                          enable search for external lapack, default: yes
  --enable-external-blas  enable search for external blas, default: yes
  --enable-molfile-plugins
                          enable use molfile_plugins, default: yes
  --enable-external-molfile-plugins
                          enable search for external molfile_plugins, default:
                          yes
  --enable-zlib           enable search for zlib, default: yes
  --enable-dlopen         enable search for dlopen, default: yes
  --enable-dladdr         enable search for dladdr, default: yes
  --enable-rtld_default   enable search for RTLD_DEFAULT macro, default: yes
  --enable-subprocess     enable search for functions needed to manage a
                          subprocess, default: yes
  --enable-execinfo       enable search for execinfo, default: yes
  --enable-gsl            enable search for gsl, default: yes
  --enable-boost_graph    enable search for boost graph, default: no
  --enable-boost_serialization
                          enable search for boost serialization, default: no
  --enable-fftw           enable search for fftw, default: yes
  --enable-python         enable search for python, default: yes
  --enable-af_ocl         enable search for arrayfire_ocl, default: no
  --enable-af_cuda        enable search for arrayfire_cuda, default: no
  --enable-af_cpu         enable search for arrayfire_cpu, default: no
  --enable-libtorch       enable search for libtorch, default: no
  --enable-libmetatomic   enable search for libmetatomic, default: no
  --enable-linuxperf      enable activate the compile options for a more
                          accurate report with perf on linux, default: no
  --enable-openacc        enable search for openacc (use PLUMED_ACC_TYPE and
                          PLUMED_ACC_GPU for controlling the settings),
                          default: no
  --disable-openmp        do not use OpenMP

Some influential environment variables:
  SOEXT       extension of dynamic libraries (so/dylib)
  STATIC_LIBS variables that should be linked statically directly to MD code -
              configure will add here -ldl if necessary
  LDSHARED    command for linking shared library - configure will use CXX plus
              the proper flags
  PYTHON_BIN  python executable (e.g. python2.7 or /opt/local/bin/python2.7) -
              default: search for a python executable
  BASH_COMPLETION_DIR
              path where bash completion will be installed - default: search
              with pkg-config
  MPIEXEC     command to run mpi programs in tests - default not specified,
              which means use PLUMED_MPIRUN env var at runtime for backward
              compatibility
  PLUMED_ACC_TYPE
              with --enable-openacc this is the setting ('host' or 'gpu') for
              determining the target of the OPENACC pragmas - default: 'gpu'
  PLUMED_ACC_GPU
              if PLUMED_ACC_TYPE is 'gpu', this is read as a space separated
              list of '-gpu' options for openacc (example "cc75 managed")
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir>
  CC          C compiler command
  CFLAGS      C compiler flags
  FC          Fortran compiler command
  FCFLAGS     Fortran compiler flags
  CXXCPP      C++ preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to the package provider.
_ACEOF
ac_status=$?
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d "$ac_dir" ||
      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
      continue
    ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix

    cd "$ac_dir" || { ac_status=$?; continue; }
    # Check for guested configure.
    if test -f "$ac_srcdir/configure.gnu"; then
      echo &&
      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
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      echo &&
      $SHELL "$ac_srcdir/configure" --help=recursive
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      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi || ac_status=$?
    cd "$ac_pwd" || { ac_status=$?; break; }
  done
fi

test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
  cat <<\_ACEOF
PLUMED configure 2
generated by GNU Autoconf 2.69

Copyright (C) 2012 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit
fi

## ------------------------ ##
## Autoconf initialization. ##
## ------------------------ ##

# ac_fn_cxx_try_compile LINENO
# ----------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
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    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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	 test -z "$ac_cxx_werror_flag" ||
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  $as_echo "$as_me: failed program was:" >&5
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	ac_retval=1
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  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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} # ac_fn_cxx_try_compile

# ac_fn_c_try_compile LINENO
# --------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
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  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
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    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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  $as_echo "$as_me: failed program was:" >&5
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	ac_retval=1
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  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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} # ac_fn_c_try_compile

# ac_fn_fc_try_compile LINENO
# ---------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_fc_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
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    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_fc_try_compile

# ac_fn_cxx_try_link LINENO
# -------------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_link ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest$ac_exeext
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
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  ac_status=$?
  if test -s conftest.err; then
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    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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  $as_echo "$as_me: failed program was:" >&5
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  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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} # ac_fn_cxx_try_link

# ac_fn_c_try_link LINENO
# -----------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_link ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest$ac_exeext
  if { { ac_try="$ac_link"
case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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} # ac_fn_c_try_link

# ac_fn_cxx_try_run LINENO
# ------------------------
# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
# that executables *can* be run.
ac_fn_cxx_try_run ()
{
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case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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  $as_echo "$as_me: program exited with status $ac_status" >&5
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sed 's/^/| /' conftest.$ac_ext >&5

       ac_retval=$ac_status
fi
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
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} # ac_fn_cxx_try_run

# ac_fn_cxx_try_cpp LINENO
# ------------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_cpp ()
{
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case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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  $as_echo "$as_me: failed program was:" >&5
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    ac_retval=1
fi
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  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_cpp

# ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
# ---------------------------------------------------------
# Tests whether HEADER exists, giving a warning if it cannot be compiled using
# the include files in INCLUDES and setting the cache variable VAR
# accordingly.
ac_fn_cxx_check_header_mongrel ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
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fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
else
  # Is the header compilable?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
$as_echo_n "checking $2 usability... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_header_compiler=yes
else
  ac_header_compiler=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
$as_echo "$ac_header_compiler" >&6; }

# Is the header present?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
$as_echo_n "checking $2 presence... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <$2>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :
  ac_header_preproc=yes
else
  ac_header_preproc=no
fi
rm -f conftest.err conftest.i conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
$as_echo "$ac_header_preproc" >&6; }

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
  yes:no: )
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
    ;;
  no:yes:* )
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
    ;;
esac
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  eval "$3=\$ac_header_compiler"
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_cxx_check_header_mongrel

# ac_fn_cxx_check_header_compile LINENO HEADER VAR INCLUDES
# ---------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
# INCLUDES, setting the cache variable VAR accordingly.
ac_fn_cxx_check_header_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_cxx_check_header_compile
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by PLUMED $as_me 2, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@

_ACEOF
exec 5>>config.log
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    $as_echo "PATH: $as_dir"
  done
IFS=$as_save_IFS

} >&5

cat >&5 <<_ACEOF


## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF


# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *\'*)
      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
    2)
      as_fn_append ac_configure_args1 " '$ac_arg'"
      if test $ac_must_keep_next = true; then
	ac_must_keep_next=false # Got value, back to normal.
      else
	case $ac_arg in
	  *=* | --config-cache | -C | -disable-* | --disable-* \
	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
	  | -with-* | --with-* | -without-* | --without-* | --x)
	    case "$ac_configure_args0 " in
	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
	    esac
	    ;;
	  -* ) ac_must_keep_next=true ;;
	esac
      fi
      as_fn_append ac_configure_args " '$ac_arg'"
      ;;
    esac
  done
done
{ ac_configure_args0=; unset ac_configure_args0;}
{ ac_configure_args1=; unset ac_configure_args1;}

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Use '\'' to represent an apostrophe within the trap.
# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
trap 'exit_status=$?
  # Save into config.log some information that might help in debugging.
  {
    echo

    $as_echo "## ---------------- ##
## Cache variables. ##
## ---------------- ##"
    echo
    # The following way of writing the cache mishandles newlines in values,
(
  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done
  (set) 2>&1 |
    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      sed -n \
	"s/'\''/'\''\\\\'\'''\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
      ;; #(
    *)
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
)
    echo

    $as_echo "## ----------------- ##
## Output variables. ##
## ----------------- ##"
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=\$$ac_var
      case $ac_val in
      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
      esac
      $as_echo "$ac_var='\''$ac_val'\''"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      $as_echo "## ------------------- ##
## File substitutions. ##
## ------------------- ##"
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=\$$ac_var
	case $ac_val in
	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
	esac
	$as_echo "$ac_var='\''$ac_val'\''"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      $as_echo "## ----------- ##
## confdefs.h. ##
## ----------- ##"
      echo
      cat confdefs.h
      echo
    fi
    test "$ac_signal" != 0 &&
      $as_echo "$as_me: caught signal $ac_signal"
    $as_echo "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core core.conftest.* &&
    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -f -r conftest* confdefs.h

$as_echo "/* confdefs.h */" > confdefs.h

# Predefined preprocessor variables.

cat >>confdefs.h <<_ACEOF
#define PACKAGE_NAME "$PACKAGE_NAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_VERSION "$PACKAGE_VERSION"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_STRING "$PACKAGE_STRING"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_URL "$PACKAGE_URL"
_ACEOF


# Let the site file select an alternate cache file if it wants to.
# Prefer an explicitly selected file to automatically selected ones.
ac_site_file1=NONE
ac_site_file2=NONE
if test -n "$CONFIG_SITE"; then
  # We do not want a PATH search for config.site.
  case $CONFIG_SITE in #((
    -*)  ac_site_file1=./$CONFIG_SITE;;
    */*) ac_site_file1=$CONFIG_SITE;;
    *)   ac_site_file1=./$CONFIG_SITE;;
  esac
elif test "x$prefix" != xNONE; then
  ac_site_file1=$prefix/share/config.site
  ac_site_file2=$prefix/etc/config.site
else
  ac_site_file1=$ac_default_prefix/share/config.site
  ac_site_file2=$ac_default_prefix/etc/config.site
fi
for ac_site_file in "$ac_site_file1" "$ac_site_file2"
do
  test "x$ac_site_file" = xNONE && continue
  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
$as_echo "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file" \
      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "failed to load site script $ac_site_file
See \`config.log' for more details" "$LINENO" 5; }
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special files
  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
$as_echo "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . "$cache_file";;
      *)                      . "./$cache_file";;
    esac
  fi
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
$as_echo "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in $ac_precious_vars; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val=\$ac_cv_env_${ac_var}_value
  eval ac_new_val=\$ac_env_${ac_var}_value
  case $ac_old_set,$ac_new_set in
    set,)
      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
	# differences in whitespace do not lead to failure.
	ac_old_val_w=`echo x $ac_old_val`
	ac_new_val_w=`echo x $ac_new_val`
	if test "$ac_old_val_w" != "$ac_new_val_w"; then
	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
	  ac_cache_corrupted=:
	else
	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
	  eval $ac_var=\$ac_old_val
	fi
	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
fi
## -------------------- ##
## Main body of script. ##
## -------------------- ##

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu



##################################################################
# In order to add m4 macros, put then in a m4 directory and include them here.
# E.g.:
# m4_include([./m4/m4_ax_openmp.m4])

##################################################################
# Here we define a few useful macros

# PLUMED_CONFIG_ENABLE(variablename,optionname,doc,default)
# notice that variablename and optionname are likely identical,
# they just need to be different with optionname contains a "-"
# (not allowed in shell variable names)


# PLUMED_CHECK_CXXFLAG(flag)
# use it to check if a flag is available on this compiler


# PLUMED_CHECK_CFLAG(flag)
# use it to check if a flag is available on this compiler


# PLUMED_CHECK_LDFLAGS(flag)
# use it to check if a flag is available for linking


# PLUMED_SEARCH_LIBS(function,search-libs[,action-if-found][,action-if-not-found][,other-libraries])
# same as AC_SEARCH_LIBS, but does not try any library unless $libsearch=true
# Should be used instead of AC_SEARCH_LIBS in order to make --disable-libsearch work correctly


# PLUMED_CHECK_PACKAGE(header,function,define[,library])
# first we check if the header is present. if so, we check if the given function can be found.
# if it cannot be found and the fourth argument (library) has been supplied, we look for it
# in the library. finally, we set the define flag


# PLUMED_CHECK_CXX_PACKAGE(name,program,define[,library,multiple_libraries])
# Similar to PLUMED_CHECK_PACKAGE but suitable for checking C++ libraries.
# Name is just a string used in the configure log
# program is a string containing a short C++ program that should compiled.
# If present and necessary, library is also linked.
# If multiple_libraries is true check the program using all the libraries specified in `library` rather than as alternatives one at a time.


# PLUMED_OPENMP
# redefinition of AC_OPENMP that proposes -qopenmp among the choices
# -qopenmp is tested first because intel compiler have deprecated -fopenmp
# the base is the AC_OPENMP defined in autoconf 2.69


##################################################################

{ $as_echo "$as_me:${as_lineno-$LINENO}: Optional modules are disabled by default" >&5
$as_echo "$as_me: Optional modules are disabled by default" >&6;}
rm -f src/*.on src/*.off

# Check whether --enable-modules was given.
if test "${enable_modules+set}" = set; then :
  enableval=$enable_modules;
   rm -f src/*.on src/*.off
   if test "${enableval}" = yes ; then
     enableval=reset
   fi
   if test "${enableval}" = no ; then
     enableval=none
   fi
   for modules_mod in `echo "${enableval}" | sed 's/:/ /g' | sed 's/+/ +/g' | sed 's/-/ -/g'`
   do
     case "$modules_mod" in
     (none)
       { $as_echo "$as_me:${as_lineno-$LINENO}: Disabling all optional modules" >&5
$as_echo "$as_me: Disabling all optional modules" >&6;}
       rm -f src/*.off src/*.on
       touch $(grep default-on src/*/module.type | sed "s|/module.type:.*|.off|") ;;
     (all)
       { $as_echo "$as_me:${as_lineno-$LINENO}: Enabling all optional modules" >&5
$as_echo "$as_me: Enabling all optional modules" >&6;}
       rm -f src/*.off src/*.off
       touch $(grep default-off src/*/module.type | sed "s|/module.type:.*|.on|") ;;
     (reset)
        { $as_echo "$as_me:${as_lineno-$LINENO}: Resetting modules to default" >&5
$as_echo "$as_me: Resetting modules to default" >&6;}
        rm -f src/*.on src/*.off ;;
     (-*)
       modules_mod=`echo "${modules_mod}" | sed "s|-||"`
       if test ! -f src/$modules_mod/module.type ; then
         as_fn_error $? "trying to remove module $modules_mod which does not exist" "$LINENO" 5
       fi
       if grep -q always src/$modules_mod/module.type ; then
         as_fn_error $? "trying to remove module $modules_mod which is always enabled" "$LINENO" 5
       fi
       { $as_echo "$as_me:${as_lineno-$LINENO}: Disabling module ${modules_mod}" >&5
$as_echo "$as_me: Disabling module ${modules_mod}" >&6;}
       rm -f src/$modules_mod.on
       touch src/$modules_mod.off ;;
     (+*)
       modules_mod=`echo "${modules_mod}" | sed "s|+||"`
       if test ! -f src/$modules_mod/module.type ; then
         as_fn_error $? "trying to add module $modules_mod which does not exist" "$LINENO" 5
       fi
       { $as_echo "$as_me:${as_lineno-$LINENO}: Enabling module ${modules_mod}" >&5
$as_echo "$as_me: Enabling module ${modules_mod}" >&6;}
       rm -f src/$modules_mod.off
       touch src/$modules_mod.on ;;
     (*)
       if test ! -f src/$modules_mod/module.type ; then
         as_fn_error $? "trying to add module $modules_mod which does not exist" "$LINENO" 5
       fi
       { $as_echo "$as_me:${as_lineno-$LINENO}: Enabling module ${modules_mod}" >&5
$as_echo "$as_me: Enabling module ${modules_mod}" >&6;}
       rm -f src/$modules_mod.off
       touch src/$modules_mod.on ;;
     esac
   done


fi



# set enable flags for ./configure

# This can be disabled when configuring within a package manager
# such as macports to make sure that only libraries explicitly
# listed in LDFLAGS are linked

libsearch=
# Check whether --enable-libsearch was given.
if test "${enable_libsearch+set}" = set; then :
  enableval=$enable_libsearch; case "${enableval}" in
             (yes) libsearch=true ;;
             (no)  libsearch=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-libsearch" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) libsearch=true ;;
             (no)  libsearch=false ;;
  esac

fi



# This can be disabled to avoid the extra tests for static patching.
# In the future, when this is disabled, we could disable the "--static" flag
# of "plumed patch"

static_patch=
# Check whether --enable-static-patch was given.
if test "${enable_static_patch+set}" = set; then :
  enableval=$enable_static_patch; case "${enableval}" in
             (yes) static_patch=true ;;
             (no)  static_patch=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-static-patch" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) static_patch=true ;;
             (no)  static_patch=false ;;
  esac

fi




doc=
# Check whether --enable-doc was given.
if test "${enable_doc+set}" = set; then :
  enableval=$enable_doc; case "${enableval}" in
             (yes) doc=true ;;
             (no)  doc=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-doc" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) doc=true ;;
             (no)  doc=false ;;
  esac

fi



pdfdoc=
# Check whether --enable-pdfdoc was given.
if test "${enable_pdfdoc+set}" = set; then :
  enableval=$enable_pdfdoc; case "${enableval}" in
             (yes) pdfdoc=true ;;
             (no)  pdfdoc=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-pdfdoc" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) pdfdoc=true ;;
             (no)  pdfdoc=false ;;
  esac

fi



debug=
# Check whether --enable-debug was given.
if test "${enable_debug+set}" = set; then :
  enableval=$enable_debug; case "${enableval}" in
             (yes) debug=true ;;
             (no)  debug=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-debug" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) debug=true ;;
             (no)  debug=false ;;
  esac

fi



gcov=
# Check whether --enable-gcov was given.
if test "${enable_gcov+set}" = set; then :
  enableval=$enable_gcov; case "${enableval}" in
             (yes) gcov=true ;;
             (no)  gcov=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-gcov" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) gcov=true ;;
             (no)  gcov=false ;;
  esac

fi


# Check whether --enable-cxx was given.
if test "${enable_cxx+set}" = set; then :
  enableval=$enable_cxx;
    case "${enableval}" in
    (11) cxx_level=17 ;;
    (14) cxx_level=17 ;;
    (17) cxx_level=17 ;;
    (20) cxx_level=20 ;;
    (23) cxx_level=23 ;;
    (none) cxx_level="" ;;
    (*) as_fn_error $? "cxx level not supported" "$LINENO" 5
    esac
    { $as_echo "$as_me:${as_lineno-$LINENO}: Selected C++ level: $cxx_level" >&5
$as_echo "$as_me: Selected C++ level: $cxx_level" >&6;}

else

    cxx_level="17"


fi


basic_warnings=
# Check whether --enable-basic-warnings was given.
if test "${enable_basic_warnings+set}" = set; then :
  enableval=$enable_basic_warnings; case "${enableval}" in
             (yes) basic_warnings=true ;;
             (no)  basic_warnings=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-basic-warnings" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) basic_warnings=true ;;
             (no)  basic_warnings=false ;;
  esac

fi



fussy=
# Check whether --enable-fussy was given.
if test "${enable_fussy+set}" = set; then :
  enableval=$enable_fussy; case "${enableval}" in
             (yes) fussy=true ;;
             (no)  fussy=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-fussy" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) fussy=true ;;
             (no)  fussy=false ;;
  esac

fi



debug_glibcxx=
# Check whether --enable-debug-glibcxx was given.
if test "${enable_debug_glibcxx+set}" = set; then :
  enableval=$enable_debug_glibcxx; case "${enableval}" in
             (yes) debug_glibcxx=true ;;
             (no)  debug_glibcxx=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-debug-glibcxx" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) debug_glibcxx=true ;;
             (no)  debug_glibcxx=false ;;
  esac

fi



shared=
# Check whether --enable-shared was given.
if test "${enable_shared+set}" = set; then :
  enableval=$enable_shared; case "${enableval}" in
             (yes) shared=true ;;
             (no)  shared=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-shared" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) shared=true ;;
             (no)  shared=false ;;
  esac

fi



dependency_tracking=
# Check whether --enable-dependency-tracking was given.
if test "${enable_dependency_tracking+set}" = set; then :
  enableval=$enable_dependency_tracking; case "${enableval}" in
             (yes) dependency_tracking=true ;;
             (no)  dependency_tracking=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-dependency-tracking" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) dependency_tracking=true ;;
             (no)  dependency_tracking=false ;;
  esac

fi



no_gnu_unique=
# Check whether --enable-no-gnu-unique was given.
if test "${enable_no_gnu_unique+set}" = set; then :
  enableval=$enable_no_gnu_unique; case "${enableval}" in
             (yes) no_gnu_unique=true ;;
             (no)  no_gnu_unique=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-no-gnu-unique" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) no_gnu_unique=true ;;
             (no)  no_gnu_unique=false ;;
  esac

fi



rpath=
# Check whether --enable-rpath was given.
if test "${enable_rpath+set}" = set; then :
  enableval=$enable_rpath; case "${enableval}" in
             (yes) rpath=true ;;
             (no)  rpath=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-rpath" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) rpath=true ;;
             (no)  rpath=false ;;
  esac

fi



absolute_soname=
# Check whether --enable-absolute-soname was given.
if test "${enable_absolute_soname+set}" = set; then :
  enableval=$enable_absolute_soname; case "${enableval}" in
             (yes) absolute_soname=true ;;
             (no)  absolute_soname=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-absolute-soname" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) absolute_soname=true ;;
             (no)  absolute_soname=false ;;
  esac

fi



absolute_install_name=
# Check whether --enable-absolute-install-name was given.
if test "${enable_absolute_install_name+set}" = set; then :
  enableval=$enable_absolute_install_name; case "${enableval}" in
             (yes) absolute_install_name=true ;;
             (no)  absolute_install_name=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-absolute-install-name" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) absolute_install_name=true ;;
             (no)  absolute_install_name=false ;;
  esac

fi



loader_path=
# Check whether --enable-loader-path was given.
if test "${enable_loader_path+set}" = set; then :
  enableval=$enable_loader_path; case "${enableval}" in
             (yes) loader_path=true ;;
             (no)  loader_path=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-loader-path" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) loader_path=true ;;
             (no)  loader_path=false ;;
  esac

fi



bsymbolic=
# Check whether --enable-bsymbolic was given.
if test "${enable_bsymbolic+set}" = set; then :
  enableval=$enable_bsymbolic; case "${enableval}" in
             (yes) bsymbolic=true ;;
             (no)  bsymbolic=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-bsymbolic" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) bsymbolic=true ;;
             (no)  bsymbolic=false ;;
  esac

fi



ld_r=
# Check whether --enable-ld-r was given.
if test "${enable_ld_r+set}" = set; then :
  enableval=$enable_ld_r; case "${enableval}" in
             (yes) ld_r=true ;;
             (no)  ld_r=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-ld-r" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) ld_r=true ;;
             (no)  ld_r=false ;;
  esac

fi



ar_cr=
# Check whether --enable-ar-cr was given.
if test "${enable_ar_cr+set}" = set; then :
  enableval=$enable_ar_cr; case "${enableval}" in
             (yes) ar_cr=true ;;
             (no)  ar_cr=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-ar-cr" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) ar_cr=true ;;
             (no)  ar_cr=false ;;
  esac

fi



static_archive=
# Check whether --enable-static-archive was given.
if test "${enable_static_archive+set}" = set; then :
  enableval=$enable_static_archive; case "${enableval}" in
             (yes) static_archive=true ;;
             (no)  static_archive=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-static-archive" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) static_archive=true ;;
             (no)  static_archive=false ;;
  esac

fi



asmjit=
# Check whether --enable-asmjit was given.
if test "${enable_asmjit+set}" = set; then :
  enableval=$enable_asmjit; case "${enableval}" in
             (yes) asmjit=true ;;
             (no)  asmjit=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-asmjit" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) asmjit=true ;;
             (no)  asmjit=false ;;
  esac

fi



mpi=
# Check whether --enable-mpi was given.
if test "${enable_mpi+set}" = set; then :
  enableval=$enable_mpi; case "${enableval}" in
             (yes) mpi=true ;;
             (no)  mpi=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-mpi" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) mpi=true ;;
             (no)  mpi=false ;;
  esac

fi



external_lapack=
# Check whether --enable-external-lapack was given.
if test "${enable_external_lapack+set}" = set; then :
  enableval=$enable_external_lapack; case "${enableval}" in
             (yes) external_lapack=true ;;
             (no)  external_lapack=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-external-lapack" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) external_lapack=true ;;
             (no)  external_lapack=false ;;
  esac

fi



external_blas=
# Check whether --enable-external-blas was given.
if test "${enable_external_blas+set}" = set; then :
  enableval=$enable_external_blas; case "${enableval}" in
             (yes) external_blas=true ;;
             (no)  external_blas=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-external-blas" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) external_blas=true ;;
             (no)  external_blas=false ;;
  esac

fi



molfile_plugins=
# Check whether --enable-molfile-plugins was given.
if test "${enable_molfile_plugins+set}" = set; then :
  enableval=$enable_molfile_plugins; case "${enableval}" in
             (yes) molfile_plugins=true ;;
             (no)  molfile_plugins=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-molfile-plugins" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) molfile_plugins=true ;;
             (no)  molfile_plugins=false ;;
  esac

fi



external_molfile_plugins=
# Check whether --enable-external-molfile-plugins was given.
if test "${enable_external_molfile_plugins+set}" = set; then :
  enableval=$enable_external_molfile_plugins; case "${enableval}" in
             (yes) external_molfile_plugins=true ;;
             (no)  external_molfile_plugins=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-external-molfile-plugins" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) external_molfile_plugins=true ;;
             (no)  external_molfile_plugins=false ;;
  esac

fi



zlib=
# Check whether --enable-zlib was given.
if test "${enable_zlib+set}" = set; then :
  enableval=$enable_zlib; case "${enableval}" in
             (yes) zlib=true ;;
             (no)  zlib=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-zlib" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) zlib=true ;;
             (no)  zlib=false ;;
  esac

fi



dlopen=
# Check whether --enable-dlopen was given.
if test "${enable_dlopen+set}" = set; then :
  enableval=$enable_dlopen; case "${enableval}" in
             (yes) dlopen=true ;;
             (no)  dlopen=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-dlopen" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) dlopen=true ;;
             (no)  dlopen=false ;;
  esac

fi



dladdr=
# Check whether --enable-dladdr was given.
if test "${enable_dladdr+set}" = set; then :
  enableval=$enable_dladdr; case "${enableval}" in
             (yes) dladdr=true ;;
             (no)  dladdr=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-dladdr" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) dladdr=true ;;
             (no)  dladdr=false ;;
  esac

fi



rtld_default=
# Check whether --enable-rtld_default was given.
if test "${enable_rtld_default+set}" = set; then :
  enableval=$enable_rtld_default; case "${enableval}" in
             (yes) rtld_default=true ;;
             (no)  rtld_default=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-rtld_default" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) rtld_default=true ;;
             (no)  rtld_default=false ;;
  esac

fi



subprocess=
# Check whether --enable-subprocess was given.
if test "${enable_subprocess+set}" = set; then :
  enableval=$enable_subprocess; case "${enableval}" in
             (yes) subprocess=true ;;
             (no)  subprocess=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-subprocess" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) subprocess=true ;;
             (no)  subprocess=false ;;
  esac

fi



execinfo=
# Check whether --enable-execinfo was given.
if test "${enable_execinfo+set}" = set; then :
  enableval=$enable_execinfo; case "${enableval}" in
             (yes) execinfo=true ;;
             (no)  execinfo=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-execinfo" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) execinfo=true ;;
             (no)  execinfo=false ;;
  esac

fi



gsl=
# Check whether --enable-gsl was given.
if test "${enable_gsl+set}" = set; then :
  enableval=$enable_gsl; case "${enableval}" in
             (yes) gsl=true ;;
             (no)  gsl=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-gsl" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) gsl=true ;;
             (no)  gsl=false ;;
  esac

fi



boost_graph=
# Check whether --enable-boost_graph was given.
if test "${enable_boost_graph+set}" = set; then :
  enableval=$enable_boost_graph; case "${enableval}" in
             (yes) boost_graph=true ;;
             (no)  boost_graph=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-boost_graph" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) boost_graph=true ;;
             (no)  boost_graph=false ;;
  esac

fi



boost_serialization=
# Check whether --enable-boost_serialization was given.
if test "${enable_boost_serialization+set}" = set; then :
  enableval=$enable_boost_serialization; case "${enableval}" in
             (yes) boost_serialization=true ;;
             (no)  boost_serialization=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-boost_serialization" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) boost_serialization=true ;;
             (no)  boost_serialization=false ;;
  esac

fi



fftw=
# Check whether --enable-fftw was given.
if test "${enable_fftw+set}" = set; then :
  enableval=$enable_fftw; case "${enableval}" in
             (yes) fftw=true ;;
             (no)  fftw=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-fftw" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) fftw=true ;;
             (no)  fftw=false ;;
  esac

fi



python=
# Check whether --enable-python was given.
if test "${enable_python+set}" = set; then :
  enableval=$enable_python; case "${enableval}" in
             (yes) python=true ;;
             (no)  python=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-python" "$LINENO" 5 ;;
  esac
else
  case "yes" in
             (yes) python=true ;;
             (no)  python=false ;;
  esac

fi



af_ocl=
# Check whether --enable-af_ocl was given.
if test "${enable_af_ocl+set}" = set; then :
  enableval=$enable_af_ocl; case "${enableval}" in
             (yes) af_ocl=true ;;
             (no)  af_ocl=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-af_ocl" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) af_ocl=true ;;
             (no)  af_ocl=false ;;
  esac

fi



af_cuda=
# Check whether --enable-af_cuda was given.
if test "${enable_af_cuda+set}" = set; then :
  enableval=$enable_af_cuda; case "${enableval}" in
             (yes) af_cuda=true ;;
             (no)  af_cuda=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-af_cuda" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) af_cuda=true ;;
             (no)  af_cuda=false ;;
  esac

fi



af_cpu=
# Check whether --enable-af_cpu was given.
if test "${enable_af_cpu+set}" = set; then :
  enableval=$enable_af_cpu; case "${enableval}" in
             (yes) af_cpu=true ;;
             (no)  af_cpu=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-af_cpu" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) af_cpu=true ;;
             (no)  af_cpu=false ;;
  esac

fi



libtorch=
# Check whether --enable-libtorch was given.
if test "${enable_libtorch+set}" = set; then :
  enableval=$enable_libtorch; case "${enableval}" in
             (yes) libtorch=true ;;
             (no)  libtorch=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-libtorch" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) libtorch=true ;;
             (no)  libtorch=false ;;
  esac

fi

 #added by luigibonati

libmetatomic=
# Check whether --enable-libmetatomic was given.
if test "${enable_libmetatomic+set}" = set; then :
  enableval=$enable_libmetatomic; case "${enableval}" in
             (yes) libmetatomic=true ;;
             (no)  libmetatomic=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-libmetatomic" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) libmetatomic=true ;;
             (no)  libmetatomic=false ;;
  esac

fi



linuxperf=
# Check whether --enable-linuxperf was given.
if test "${enable_linuxperf+set}" = set; then :
  enableval=$enable_linuxperf; case "${enableval}" in
             (yes) linuxperf=true ;;
             (no)  linuxperf=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-linuxperf" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) linuxperf=true ;;
             (no)  linuxperf=false ;;
  esac

fi



openacc=
# Check whether --enable-openacc was given.
if test "${enable_openacc+set}" = set; then :
  enableval=$enable_openacc; case "${enableval}" in
             (yes) openacc=true ;;
             (no)  openacc=false ;;
             (*)   as_fn_error $? "wrong argument to --enable-openacc" "$LINENO" 5 ;;
  esac
else
  case "no" in
             (yes) openacc=true ;;
             (no)  openacc=false ;;
  esac

fi











# by default use -O flag
# we override the autoconf default (-g) because in release build we do not want to
# include symbol information (obj files are huge)
if test -z "$CXXFLAGS"
then
  CXXFLAGS=-O3
fi
# this is a list of common compilers
compilers="g++ c++ cxx icpc"
c_compilers="gcc cc icc"

# on OSX, prefer clang++
case `(uname)` in
  (Darwin)
    compilers="clang++ $compilers"
    c_compilers="clang $c_compilers"
  ;;
esac

# if searching for MPI, try first mpi-like compilers
if test $mpi = true ; then
compilers="mpic++ mpicxx mpiicpc openmpic++ openmpicxx $compilers"
fi

# do the actual search
ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -z "$CXX"; then
  if test -n "$CCC"; then
    CXX=$CCC
  else
    if test -n "$ac_tool_prefix"; then
  for ac_prog in $compilers
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
$as_echo "$CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in $compilers
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
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done
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IFS=$as_save_IFS

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
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$as_echo "$ac_ct_CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CXX" && break
done

  if test "x$ac_ct_CXX" = x; then
    CXX="g++"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CXX=$ac_ct_CXX
  fi
fi

  fi
fi
# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
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case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
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... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler works" >&5
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ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`

# The possible output files:
ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"

ac_rmfiles=
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do
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done
rm -f $ac_rmfiles

if { { ac_try="$ac_link_default"
case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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for ac_file in $ac_files ''
do
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  case $ac_file in
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test "$ac_cv_exeext" = no && ac_cv_exeext=

else
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if test -z "$ac_file"; then :
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{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
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as_fn_error 77 "C++ compiler cannot create executables
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler default output file name" >&5
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
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ac_exeext=$ac_cv_exeext

rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
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if { { ac_try="$ac_link"
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
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for ac_file in conftest.exe conftest conftest.*; do
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  case $ac_file in
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done
else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of executables: cannot compile and link
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fi
rm -f conftest conftest$ac_cv_exeext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
$as_echo "$ac_cv_exeext" >&6; }

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>
int
main ()
{
FILE *f = fopen ("conftest.out", "w");
 return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
ac_clean_files="$ac_clean_files conftest.out"
# Check that the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
$as_echo_n "checking whether we are cross compiling... " >&6; }
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case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run C++ compiled programs.
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fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
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rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
ac_clean_files=$ac_clean_files_save
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
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if ${ac_cv_objext+:} false; then :
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else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { { ac_try="$ac_compile"
case "(($ac_try" in
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esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
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  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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  for ac_file in conftest.o conftest.obj conftest.*; do
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       break;;
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done
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of object files: cannot compile
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fi
rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
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OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
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if ${ac_cv_cxx_compiler_gnu+:} false; then :
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else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
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else
  GXX=
fi
ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
$as_echo_n "checking whether $CXX accepts -g... " >&6; }
if ${ac_cv_prog_cxx_g+:} false; then :
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else
  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
   ac_cxx_werror_flag=yes
   ac_cv_prog_cxx_g=no
   CXXFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_prog_cxx_g=yes
else
  CXXFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

else
  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
	 CXXFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_prog_cxx_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
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if test "$ac_test_CXXFLAGS" = set; then
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else
  if test "$GXX" = yes; then
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fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
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set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
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else
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else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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do
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IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
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$as_echo "$CC" >&6; }
else
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fi


    test -n "$CC" && break
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fi
if test -z "$CC"; then
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do
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set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
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else
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else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
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done
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IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
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$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CC" && break
done

  if test "x$ac_ct_CC" = x; then
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    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
fi


test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "no acceptable C compiler found in \$PATH
See \`config.log' for more details" "$LINENO" 5; }

# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
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case "(($ac_try" in
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  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
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... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
if ${ac_cv_c_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
$as_echo "$ac_cv_c_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
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else
  GCC=
fi
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
$as_echo_n "checking whether $CC accepts -g... " >&6; }
if ${ac_cv_prog_cc_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_c_werror_flag=$ac_c_werror_flag
   ac_c_werror_flag=yes
   ac_cv_prog_cc_g=no
   CFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
else
  CFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  ac_c_werror_flag=$ac_save_c_werror_flag
	 CFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_c_werror_flag=$ac_save_c_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
$as_echo "$ac_cv_prog_cc_g" >&6; }
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
if ${ac_cv_prog_cc_c89+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_prog_cc_c89=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdarg.h>
#include <stdio.h>
struct stat;
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
   inside strings and character constants.  */
#define FOO(x) 'x'
int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC

fi
# AC_CACHE_VAL
case "x$ac_cv_prog_cc_c89" in
  x)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
$as_echo "none needed" >&6; } ;;
  xno)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
$as_echo "unsupported" >&6; } ;;
  *)
    CC="$CC $ac_cv_prog_cc_c89"
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
esac
if test "x$ac_cv_prog_cc_c89" != xno; then :

fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


# also setup Fortran compiler
# this is optional, and can be used in the late part of this
# script to verify that fortran can indeed link properly the
# a c++ library
ac_ext=${ac_fc_srcext-f}
ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_fc_compiler_gnu
if test -n "$ac_tool_prefix"; then
  for ac_prog in gfortran g95 xlf95 f95 fort ifort ifc efc pgfortran pgf95 lf95 ftn nagfor xlf90 f90 pgf90 pghpf epcf90 g77 xlf f77 frt pgf77 cf77 fort77 fl32 af77
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_FC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$FC"; then
  ac_cv_prog_FC="$FC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_FC="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
FC=$ac_cv_prog_FC
if test -n "$FC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $FC" >&5
$as_echo "$FC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$FC" && break
  done
fi
if test -z "$FC"; then
  ac_ct_FC=$FC
  for ac_prog in gfortran g95 xlf95 f95 fort ifort ifc efc pgfortran pgf95 lf95 ftn nagfor xlf90 f90 pgf90 pghpf epcf90 g77 xlf f77 frt pgf77 cf77 fort77 fl32 af77
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_FC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_FC"; then
  ac_cv_prog_ac_ct_FC="$ac_ct_FC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_FC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_FC=$ac_cv_prog_ac_ct_FC
if test -n "$ac_ct_FC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_FC" >&5
$as_echo "$ac_ct_FC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_FC" && break
done

  if test "x$ac_ct_FC" = x; then
    FC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    FC=$ac_ct_FC
  fi
fi


# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for Fortran compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done
rm -f a.out

# If we don't use `.F' as extension, the preprocessor is not run on the
# input file.  (Note that this only needs to work for GNU compilers.)
ac_save_ext=$ac_ext
ac_ext=F
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU Fortran compiler" >&5
$as_echo_n "checking whether we are using the GNU Fortran compiler... " >&6; }
if ${ac_cv_fc_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.$ac_ext <<_ACEOF
      program main
#ifndef __GNUC__
       choke me
#endif

      end
_ACEOF
if ac_fn_fc_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_fc_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_fc_compiler_gnu" >&5
$as_echo "$ac_cv_fc_compiler_gnu" >&6; }
ac_ext=$ac_save_ext
ac_test_FCFLAGS=${FCFLAGS+set}
ac_save_FCFLAGS=$FCFLAGS
FCFLAGS=
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $FC accepts -g" >&5
$as_echo_n "checking whether $FC accepts -g... " >&6; }
if ${ac_cv_prog_fc_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  FCFLAGS=-g
cat > conftest.$ac_ext <<_ACEOF
      program main

      end
_ACEOF
if ac_fn_fc_try_compile "$LINENO"; then :
  ac_cv_prog_fc_g=yes
else
  ac_cv_prog_fc_g=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_fc_g" >&5
$as_echo "$ac_cv_prog_fc_g" >&6; }
if test "$ac_test_FCFLAGS" = set; then
  FCFLAGS=$ac_save_FCFLAGS
elif test $ac_cv_prog_fc_g = yes; then
  if test "x$ac_cv_fc_compiler_gnu" = xyes; then
    FCFLAGS="-g -O2"
  else
    FCFLAGS="-g"
  fi
else
  if test "x$ac_cv_fc_compiler_gnu" = xyes; then
    FCFLAGS="-O2"
  else
    FCFLAGS=
  fi
fi

if test $ac_compiler_gnu = yes; then
  GFC=yes
else
  GFC=
fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


# we use C++ for all the autoconf tests
ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


if test -z "$LDSHARED" ; then
  LDSHARED="$CXX"
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial CXX:         $CXX" >&5
$as_echo "$as_me: Initial CXX:         $CXX" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial CXXFLAGS:    $CXXFLAGS" >&5
$as_echo "$as_me: Initial CXXFLAGS:    $CXXFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial CPPFLAGS:    $CPPFLAGS" >&5
$as_echo "$as_me: Initial CPPFLAGS:    $CPPFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial CFLAGS:      $CFLAGS" >&5
$as_echo "$as_me: Initial CFLAGS:      $CFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial LDFLAGS:     $LDFLAGS" >&5
$as_echo "$as_me: Initial LDFLAGS:     $LDFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial LIBS:        $LIBS" >&5
$as_echo "$as_me: Initial LIBS:        $LIBS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial STATIC_LIBS: $STATIC_LIBS" >&5
$as_echo "$as_me: Initial STATIC_LIBS: $STATIC_LIBS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial LD:          $LD" >&5
$as_echo "$as_me: Initial LD:          $LD" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial LDSHARED:    $LDSHARED" >&5
$as_echo "$as_me: Initial LDSHARED:    $LDSHARED" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Initial SOEXT:       $SOEXT" >&5
$as_echo "$as_me: Initial SOEXT:       $SOEXT" >&6;}

# check C++ flags
if test $shared = true
then


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -fPIC"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -fPIC" >&5
$as_echo_n "checking whether $CXX accepts -fPIC... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext



  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

  save_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -fPIC"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -fPIC" >&5
$as_echo_n "checking whether $CC accepts -fPIC... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CCFLAGS="$save_CCFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CCFLAGS="$save_CCFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


fi

if test $basic_warnings = true
then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wall"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wall" >&5
$as_echo_n "checking whether $CXX accepts -Wall... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -pedantic"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -pedantic" >&5
$as_echo_n "checking whether $CXX accepts -pedantic... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

  if ! test $openacc = true; then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wno-unknown-pragmas"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wno-unknown-pragmas" >&5
$as_echo_n "checking whether $CXX accepts -Wno-unknown-pragmas... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

  fi
  if test $fussy = true
  then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wextra"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wextra" >&5
$as_echo_n "checking whether $CXX accepts -Wextra... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wfloat-equal"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wfloat-equal" >&5
$as_echo_n "checking whether $CXX accepts -Wfloat-equal... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wwrite-strings"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wwrite-strings" >&5
$as_echo_n "checking whether $CXX accepts -Wwrite-strings... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wpointer-arith"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wpointer-arith" >&5
$as_echo_n "checking whether $CXX accepts -Wpointer-arith... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wcast-qual"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wcast-qual" >&5
$as_echo_n "checking whether $CXX accepts -Wcast-qual... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wcast-align"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wcast-align" >&5
$as_echo_n "checking whether $CXX accepts -Wcast-align... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wconversion"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wconversion" >&5
$as_echo_n "checking whether $CXX accepts -Wconversion... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wredundant-decls"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wredundant-decls" >&5
$as_echo_n "checking whether $CXX accepts -Wredundant-decls... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wvariadic-macros"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wvariadic-macros" >&5
$as_echo_n "checking whether $CXX accepts -Wvariadic-macros... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -Wold-style-cast"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -Wold-style-cast" >&5
$as_echo_n "checking whether $CXX accepts -Wold-style-cast... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

  fi
else

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -w"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -w" >&5
$as_echo_n "checking whether $CXX accepts -w... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

  { $as_echo "$as_me:${as_lineno-$LINENO}: All warning disabled" >&5
$as_echo "$as_me: All warning disabled" >&6;}
  if test $fussy = true
  then
     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \"fussy warnings\" won't be enabled without basic warnings" >&5
$as_echo "$as_me: WARNING: \"fussy warnings\" won't be enabled without basic warnings" >&2;}
  fi
fi

if test -n "$cxx_level"
then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -std=c++$cxx_level"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -std=c++$cxx_level" >&5
$as_echo_n "checking whether $CXX accepts -std=c++$cxx_level... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi

if test $debug = true
then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -g"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
$as_echo_n "checking whether $CXX accepts -g... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi

if test $gcov = true
then
  CXX="$CXX --coverage"
  LDSHARED="$LDSHARED --coverage"
  CFLAGS="$CFLAGS --coverage"

  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS --coverage"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether LDFLAGS can contain --coverage" >&5
$as_echo_n "checking whether LDFLAGS can contain --coverage... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; LDFLAGS="$save_LDFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

  STATIC_LIBS="$STATIC_LIBS --coverage"
fi

# useful for having a clearer (and correct) flamegraph in linux
if test $linuxperf = true
then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -fno-omit-frame-pointer"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -fno-omit-frame-pointer" >&5
$as_echo_n "checking whether $CXX accepts -fno-omit-frame-pointer... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -gdwarf"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -gdwarf" >&5
$as_echo_n "checking whether $CXX accepts -gdwarf... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX declares c++17 support" >&5
$as_echo_n "checking whether $CXX declares c++17 support... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#if __cplusplus < 201703L
this_compiler_does_not_support_cxx17
#endif

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; };
  support_cxx17=true
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; } ;
  support_cxx17=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test "$support_cxx17" = false
then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: C++17 support is required as of PLUMED 2.10" >&5
$as_echo "$as_me: WARNING: C++17 support is required as of PLUMED 2.10" >&2;}
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Your compiler appears not to support C++17" >&5
$as_echo "$as_me: WARNING: Your compiler appears not to support C++17" >&2;}
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Please change compiler or make sure that everything works correctly" >&5
$as_echo "$as_me: WARNING: Please change compiler or make sure that everything works correctly" >&2;}
fi

# We assume now that compiler supports C++11 library
$as_echo "#define __PLUMED_WRAPPER_LIBCXX11 1" >>confdefs.h




if test "$dependency_tracking" = true
then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX can generate dependency file with -MM -MF" >&5
$as_echo_n "checking whether $CXX can generate dependency file with -MM -MF... " >&6; }
  dependency=ko
  echo "#include \"conftest1.h\"" > conftest.cpp
  echo "#include \"conftest2.h\"" > conftest1.h
  echo "/* */" > conftest2.h
  $CXX $CXXFLAGS -c -MM -MF conftest.d conftest.cpp 1> /dev/null 2> /dev/null
  grep conftest2 conftest.d 1> /dev/null 2>/dev/null && dependency=ok
  if test "$dependency" = ok ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    disable_dependency_tracking=no
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    disable_dependency_tracking=yes
  fi
else
  disable_dependency_tracking=yes
fi

if test "$disable_dependency_tracking" = yes ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: dependencies tracking disabled - always make clean before make" >&5
$as_echo "$as_me: WARNING: dependencies tracking disabled - always make clean before make" >&2;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: dependency tracking enabled" >&5
$as_echo "$as_me: dependency tracking enabled" >&6;}
fi


if test "$no_gnu_unique" = true
then

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -fno-gnu-unique"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -fno-gnu-unique" >&5
$as_echo_n "checking whether $CXX accepts -fno-gnu-unique... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi

#### Compulsory libraries ####
# some of them might be made optional if we find that are not available in some system
{ $as_echo "$as_me:${as_lineno-$LINENO}: Now we will check compulsory headers and libraries" >&5
$as_echo "$as_me: Now we will check compulsory headers and libraries" >&6;}


    found=ko
    __PLUMED_CXX17_FILESYSTEM=no
    if test "${libsearch}" = true ; then
      testlibs="stdc++fs"
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking filesystem library without extra libs" >&5
$as_echo_n "checking filesystem library without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <filesystem>
#include <iostream>
#include <string>

int main(){
  std::filesystem::path path;
  for (auto const& dir_entry : std::filesystem::directory_iterator{"a"}) {
    std::cout<<std::string(dir_entry.path().filename())<<"\n";
  }
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking filesystem library with $all_LIBS" >&5
$as_echo_n "checking filesystem library with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <filesystem>
#include <iostream>
#include <string>

int main(){
  std::filesystem::path path;
  for (auto const& dir_entry : std::filesystem::directory_iterator{"a"}) {
    std::cout<<std::string(dir_entry.path().filename())<<"\n";
  }
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking filesystem library with -l$testlib" >&5
$as_echo_n "checking filesystem library with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <filesystem>
#include <iostream>
#include <string>

int main(){
  std::filesystem::path path;
  for (auto const& dir_entry : std::filesystem::directory_iterator{"a"}) {
    std::cout<<std::string(dir_entry.path().filename())<<"\n";
  }
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_CXX17_FILESYSTEM 1" >>confdefs.h

      __PLUMED_CXX17_FILESYSTEM=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_CXX17_FILESYSTEM" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_CXX17_FILESYSTEM" >&2;}
      LIBS="$save_LIBS"
    fi


if test "$__PLUMED_CXX17_FILESYSTEM" != yes
then
  as_fn_error $? "C++17 filesystem library not supported, please check your compiler" "$LINENO" 5
fi


# Then check for blas. This is a bit complicated because we want to allow
# either the version with underscore or the one without
blas_found=
lapack_found=

# external lapack can only work with external blas
# thus, if external blas are disabled also external lapack should be disabled
if test "$external_blas" = false && test "$external_lapack" = true ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: Internal blas can only be used with internal lapack" >&5
$as_echo "$as_me: Internal blas can only be used with internal lapack" >&6;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: Will not search for external lapack" >&5
$as_echo "$as_me: Will not search for external lapack" >&6;}
  external_lapack=false
fi

# first look for blas
if test "$external_blas" = true ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether dgemv_ can be linked with no library" >&5
$as_echo_n "checking whether dgemv_ can be linked with no library... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv_ ();
int
main ()
{
return dgemv_ ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    blas_found=underscore

else

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether dgemv_ can be linked with no library" >&5
$as_echo_n "checking whether dgemv_ can be linked with no library... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv ();
int
main ()
{
return dgemv ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :

      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
      blas_found=nounderscore

else

      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dgemv_" >&5
$as_echo_n "checking for library containing dgemv_... " >&6; }
if ${ac_cv_search_dgemv_+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv_ ();
int
main ()
{
return dgemv_ ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' blas; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dgemv_=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dgemv_+:} false; then :
  break
fi
done
if ${ac_cv_search_dgemv_+:} false; then :

else
  ac_cv_search_dgemv_=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dgemv_" >&5
$as_echo "$ac_cv_search_dgemv_" >&6; }
ac_res=$ac_cv_search_dgemv_
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  blas_found=underscore
else


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dgemv" >&5
$as_echo_n "checking for library containing dgemv... " >&6; }
if ${ac_cv_search_dgemv+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv ();
int
main ()
{
return dgemv ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' blas; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dgemv=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dgemv+:} false; then :
  break
fi
done
if ${ac_cv_search_dgemv+:} false; then :

else
  ac_cv_search_dgemv=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dgemv" >&5
$as_echo "$ac_cv_search_dgemv" >&6; }
ac_res=$ac_cv_search_dgemv
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  blas_found=nounderscore
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dgemv" >&5
$as_echo_n "checking for library containing dgemv... " >&6; }
if ${ac_cv_search_dgemv+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv ();
int
main ()
{
return dgemv ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dgemv=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dgemv+:} false; then :
  break
fi
done
if ${ac_cv_search_dgemv+:} false; then :

else
  ac_cv_search_dgemv=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dgemv" >&5
$as_echo "$ac_cv_search_dgemv" >&6; }
ac_res=$ac_cv_search_dgemv
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  blas_found=nounderscore
fi

  fi


fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dgemv_" >&5
$as_echo_n "checking for library containing dgemv_... " >&6; }
if ${ac_cv_search_dgemv_+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv_ ();
int
main ()
{
return dgemv_ ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dgemv_=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dgemv_+:} false; then :
  break
fi
done
if ${ac_cv_search_dgemv_+:} false; then :

else
  ac_cv_search_dgemv_=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dgemv_" >&5
$as_echo "$ac_cv_search_dgemv_" >&6; }
ac_res=$ac_cv_search_dgemv_
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  blas_found=underscore
else


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dgemv" >&5
$as_echo_n "checking for library containing dgemv... " >&6; }
if ${ac_cv_search_dgemv+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv ();
int
main ()
{
return dgemv ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' blas; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dgemv=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dgemv+:} false; then :
  break
fi
done
if ${ac_cv_search_dgemv+:} false; then :

else
  ac_cv_search_dgemv=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dgemv" >&5
$as_echo "$ac_cv_search_dgemv" >&6; }
ac_res=$ac_cv_search_dgemv
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  blas_found=nounderscore
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dgemv" >&5
$as_echo_n "checking for library containing dgemv... " >&6; }
if ${ac_cv_search_dgemv+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dgemv ();
int
main ()
{
return dgemv ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dgemv=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dgemv+:} false; then :
  break
fi
done
if ${ac_cv_search_dgemv+:} false; then :

else
  ac_cv_search_dgemv=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dgemv" >&5
$as_echo "$ac_cv_search_dgemv" >&6; }
ac_res=$ac_cv_search_dgemv
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  blas_found=nounderscore
fi

  fi


fi

  fi


fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi

# if not found, then use internal lapack and blas
if test -z "$blas_found" ; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using internal lapack and blas, could be inefficient" >&5
$as_echo "$as_me: WARNING: using internal lapack and blas, could be inefficient" >&2;}
fi

# if found, also look for external lapack
if test -n "$blas_found" ; then

$as_echo "#define __PLUMED_HAS_EXTERNAL_BLAS 1" >>confdefs.h


if test "$external_lapack" = true ; then
# Then we look for lapack using same underscoring
case "$blas_found" in
(underscore) search_for=dsyevr_ ;;
(nounderscore) search_for=dsyevr ;;
esac

  if test "${libsearch}" = true ; then
    as_ac_Search=`$as_echo "ac_cv_search_$search_for" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing $search_for" >&5
$as_echo_n "checking for library containing $search_for... " >&6; }
if eval \${$as_ac_Search+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char $search_for ();
int
main ()
{
return $search_for ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' lapack; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  eval "$as_ac_Search=\$ac_res"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if eval \${$as_ac_Search+:} false; then :
  break
fi
done
if eval \${$as_ac_Search+:} false; then :

else
  eval "$as_ac_Search=no"
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
eval ac_res=\$$as_ac_Search
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
eval ac_res=\$$as_ac_Search
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  lapack_found=yes
fi

  else
    as_ac_Search=`$as_echo "ac_cv_search_$search_for" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing $search_for" >&5
$as_echo_n "checking for library containing $search_for... " >&6; }
if eval \${$as_ac_Search+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char $search_for ();
int
main ()
{
return $search_for ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  eval "$as_ac_Search=\$ac_res"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if eval \${$as_ac_Search+:} false; then :
  break
fi
done
if eval \${$as_ac_Search+:} false; then :

else
  eval "$as_ac_Search=no"
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
eval ac_res=\$$as_ac_Search
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
eval ac_res=\$$as_ac_Search
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  lapack_found=yes
fi

  fi

fi

# if not found, then use internal lapack with external blas
if test -z "$lapack_found" ; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using internal lapack, could be inefficient" >&5
$as_echo "$as_me: WARNING: using internal lapack, could be inefficient" >&2;}
else
$as_echo "#define __PLUMED_HAS_EXTERNAL_LAPACK 1" >>confdefs.h

fi

fi

# in case external blas have been found, take note of their underscoring
# notice that this applies also when external blas are used with internal lapack
# in the latter case, also (internal) lapack names will be underscored consistently
if test "$blas_found" = nounderscore
then
  $as_echo "#define F77_NO_UNDERSCORE 1" >>confdefs.h

fi

if test -n "$blas_found" ; then




{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether sdot returns float" >&5
$as_echo_n "checking whether sdot returns float... " >&6; }
if test "$cross_compiling" = yes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: not checked (cross compiling)" >&5
$as_echo "not checked (cross compiling)" >&6; }

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#if ! defined(F77_NO_UNDERSCORE)
#define sdot sdot_
#endif
extern "C"{
float sdot(int *n, float *dx, int *incx, float *dy, int *incy);
}

int main(){
  int size=5;
// notice that [] is required to cheat autoconf
  float af[5],bf[5];
  for(unsigned i=0;i<size;i++){
    af[i]=size;
    bf[i]=size-i;
  }
  int inca=1;
  int incb=1;
  float f=sdot(&size,af,&inca,bf,&incb)-75;
  if(f*f<1e-10) return 0;
  else return 1;
}

_ACEOF
if ac_fn_cxx_try_run "$LINENO"; then :
   sdot_returns_float=yes ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
   sdot_returns_float=no ;  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


if test "$sdot_returns_float" = no ;
then

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether sdot returns double" >&5
$as_echo_n "checking whether sdot returns double... " >&6; }
if test "$cross_compiling" = yes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: not checked (cross compiling)" >&5
$as_echo "not checked (cross compiling)" >&6; }

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#if ! defined(F77_NO_UNDERSCORE)
#define sdot sdot_
#endif
extern "C"{
double sdot(int *n, float *dx, int *incx, float *dy, int *incy);
}

int main(){
  int size=5;
// notice that [] is required to cheat autoconf
  float af[5],bf[5];
  for(unsigned i=0;i<size;i++){
    af[i]=size;
    bf[i]=size-i;
  }
  int inca=1;
  int incb=1;
  double f=sdot(&size,af,&inca,bf,&incb)-75;
  if(f*f<1e-10) return 0;
  else return 1;
}

_ACEOF
if ac_fn_cxx_try_run "$LINENO"; then :
   sdot_returns_double=yes ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
   sdot_returns_double=no ;  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


fi

if test "$sdot_returns_double" = yes ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: Setting workaround for blas float functions returning double" >&5
$as_echo "$as_me: Setting workaround for blas float functions returning double" >&6;}
  $as_echo "#define __PLUMED_BLAS_RETURNS_FLOAT double" >>confdefs.h

  if test -n "$lapack_found" ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: Setting workaround for lapack float functions returning double" >&5
$as_echo "$as_me: Setting workaround for lapack float functions returning double" >&6;}
    $as_echo "#define __PLUMED_LAPACK_RETURNS_FLOAT double" >>confdefs.h

  fi
else if test "$sdot_returns_float" = no && test "$sdot_returns_double" = no ;
then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: There is a problem with your blas implementation" >&5
$as_echo "$as_me: WARNING: There is a problem with your blas implementation" >&2;}
fi

fi

fi

#### End of compulsory libraries ####

#### Optional libraries ####
{ $as_echo "$as_me:${as_lineno-$LINENO}: Now we will check for optional headers and libraries" >&5
$as_echo "$as_me: Now we will check for optional headers and libraries" >&6;}

#############################################################
# I add the possibility to completely remove molfile_plugins
# I would like to be 100% that the molfile module compiles
# correctly on all machines
# In case of problem, it is sufficient to configure with
# ./configure --disable-molfile-plugins
# GB
#############################################################

if test $molfile_plugins = true ; then

# Check for molfile_plugins and use internal fallback if not found. TG

# We always have molfile, now
$as_echo "#define __PLUMED_HAS_MOLFILE_PLUGINS 1" >>confdefs.h


  if test "$external_molfile_plugins" = true ; then
    ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
if test -z "$CXXCPP"; then
  if ${ac_cv_prog_CXXCPP+:} false; then :
  $as_echo_n "(cached) " >&6
else
      # Double quotes because CXXCPP needs to be expanded
    for CXXCPP in "$CXX -E" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :
  break
fi

    done
    ac_cv_prog_CXXCPP=$CXXCPP

fi
  CXXCPP=$ac_cv_prog_CXXCPP
else
  ac_cv_prog_CXXCPP=$CXXCPP
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
$as_echo "$CXXCPP" >&6; }
ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :

else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
if ${ac_cv_path_GREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$GREP"; then
  ac_path_GREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in grep ggrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_GREP" || continue
# Check for GNU ac_path_GREP and select it if it is found.
  # Check for GNU $ac_path_GREP
case `"$ac_path_GREP" --version 2>&1` in
*GNU*)
  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'GREP' >> "conftest.nl"
    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_GREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_GREP="$ac_path_GREP"
      ac_path_GREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_GREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_GREP"; then
    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_GREP=$GREP
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
$as_echo "$ac_cv_path_GREP" >&6; }
 GREP="$ac_cv_path_GREP"


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
$as_echo_n "checking for egrep... " >&6; }
if ${ac_cv_path_EGREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
   then ac_cv_path_EGREP="$GREP -E"
   else
     if test -z "$EGREP"; then
  ac_path_EGREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in egrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_EGREP" || continue
# Check for GNU ac_path_EGREP and select it if it is found.
  # Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
*GNU*)
  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'EGREP' >> "conftest.nl"
    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_EGREP="$ac_path_EGREP"
      ac_path_EGREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_EGREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_EGREP"; then
    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_EGREP=$EGREP
fi

   fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
$as_echo "$ac_cv_path_EGREP" >&6; }
 EGREP="$ac_cv_path_EGREP"


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_header_stdc=yes
else
  ac_cv_header_stdc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <string.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then :
  :
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ctype.h>
#include <stdlib.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      return 2;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_run "$LINENO"; then :

else
  ac_cv_header_stdc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
$as_echo "$ac_cv_header_stdc" >&6; }
if test $ac_cv_header_stdc = yes; then

$as_echo "#define STDC_HEADERS 1" >>confdefs.h

fi

# On IRIX 5.3, sys/types and inttypes.h are conflicting.
for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
		  inttypes.h stdint.h unistd.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_cxx_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done



    found=ko
    __PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "libmolfile_plugin.h" "ac_cv_header_libmolfile_plugin_h" "$ac_includes_default"
if test "x$ac_cv_header_libmolfile_plugin_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing molfile_dcdplugin_init" >&5
$as_echo_n "checking for library containing molfile_dcdplugin_init... " >&6; }
if ${ac_cv_search_molfile_dcdplugin_init+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char molfile_dcdplugin_init ();
int
main ()
{
return molfile_dcdplugin_init ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' molfile_plugin; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_molfile_dcdplugin_init=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_molfile_dcdplugin_init+:} false; then :
  break
fi
done
if ${ac_cv_search_molfile_dcdplugin_init+:} false; then :

else
  ac_cv_search_molfile_dcdplugin_init=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_molfile_dcdplugin_init" >&5
$as_echo "$ac_cv_search_molfile_dcdplugin_init" >&6; }
ac_res=$ac_cv_search_molfile_dcdplugin_init
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing molfile_dcdplugin_init" >&5
$as_echo_n "checking for library containing molfile_dcdplugin_init... " >&6; }
if ${ac_cv_search_molfile_dcdplugin_init+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char molfile_dcdplugin_init ();
int
main ()
{
return molfile_dcdplugin_init ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_molfile_dcdplugin_init=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_molfile_dcdplugin_init+:} false; then :
  break
fi
done
if ${ac_cv_search_molfile_dcdplugin_init+:} false; then :

else
  ac_cv_search_molfile_dcdplugin_init=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_molfile_dcdplugin_init" >&5
$as_echo "$ac_cv_search_molfile_dcdplugin_init" >&6; }
ac_res=$ac_cv_search_molfile_dcdplugin_init
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS 1" >>confdefs.h

       __PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS" >&2;}
    fi

    if test "$__PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS" != yes ; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using internal molfile_plugins, which only support dcd/xtc/trr/trj/crd files" >&5
$as_echo "$as_me: WARNING: using internal molfile_plugins, which only support dcd/xtc/trr/trj/crd files" >&2;}
    else
      $as_echo "#define __PLUMED_HAS_EXTERNAL_MOLFILE_PLUGINS 1" >>confdefs.h

    fi
  fi
fi

# this is special and is also attached to STATIC_LIBS
# this flag should be used also when linking MD engines to allow plumed
# to be loaded later
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
if ${ac_cv_lib_dl_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_lib_dl_dlopen=yes
else
  ac_cv_lib_dl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
  STATIC_LIBS="-ldl $STATIC_LIBS" LIBS="-ldl $LIBS"
fi




    found=ko
    __PLUMED_HAS_DLADDR=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
if test "x$ac_cv_header_dlfcn_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dladdr" >&5
$as_echo_n "checking for library containing dladdr... " >&6; }
if ${ac_cv_search_dladdr+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dladdr ();
int
main ()
{
return dladdr ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dladdr=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dladdr+:} false; then :
  break
fi
done
if ${ac_cv_search_dladdr+:} false; then :

else
  ac_cv_search_dladdr=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dladdr" >&5
$as_echo "$ac_cv_search_dladdr" >&6; }
ac_res=$ac_cv_search_dladdr
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dladdr" >&5
$as_echo_n "checking for library containing dladdr... " >&6; }
if ${ac_cv_search_dladdr+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dladdr ();
int
main ()
{
return dladdr ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dladdr=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dladdr+:} false; then :
  break
fi
done
if ${ac_cv_search_dladdr+:} false; then :

else
  ac_cv_search_dladdr=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dladdr" >&5
$as_echo "$ac_cv_search_dladdr" >&6; }
ac_res=$ac_cv_search_dladdr
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_DLADDR 1" >>confdefs.h

       __PLUMED_HAS_DLADDR=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_DLADDR" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_DLADDR" >&2;}
    fi


mpi_found=ko
# optional libraries follow
if test $mpi = true ; then

    found=ko
    __PLUMED_HAS_MPI=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "mpi.h" "ac_cv_header_mpi_h" "$ac_includes_default"
if test "x$ac_cv_header_mpi_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing MPI_Init" >&5
$as_echo_n "checking for library containing MPI_Init... " >&6; }
if ${ac_cv_search_MPI_Init+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char MPI_Init ();
int
main ()
{
return MPI_Init ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_MPI_Init=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_MPI_Init+:} false; then :
  break
fi
done
if ${ac_cv_search_MPI_Init+:} false; then :

else
  ac_cv_search_MPI_Init=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_MPI_Init" >&5
$as_echo "$ac_cv_search_MPI_Init" >&6; }
ac_res=$ac_cv_search_MPI_Init
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing MPI_Init" >&5
$as_echo_n "checking for library containing MPI_Init... " >&6; }
if ${ac_cv_search_MPI_Init+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char MPI_Init ();
int
main ()
{
return MPI_Init ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_MPI_Init=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_MPI_Init+:} false; then :
  break
fi
done
if ${ac_cv_search_MPI_Init+:} false; then :

else
  ac_cv_search_MPI_Init=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_MPI_Init" >&5
$as_echo "$ac_cv_search_MPI_Init" >&6; }
ac_res=$ac_cv_search_MPI_Init
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_MPI 1" >>confdefs.h

       __PLUMED_HAS_MPI=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_MPI" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_MPI" >&2;}
    fi

  if test "$__PLUMED_HAS_MPI" = yes; then
    mpi_found=ok
  fi
else
  mpi_found=ko
fi

# search for openmp is automatically disabled by autoconf
# when configuring with --disable-openmp

  OPENMP_CXXFLAGS=
  # Check whether --enable-openmp was given.
if test "${enable_openmp+set}" = set; then :
  enableval=$enable_openmp;
fi

  if test "$enable_openmp" != no; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CXX option to support OpenMP" >&5
$as_echo_n "checking for $CXX option to support OpenMP... " >&6; }
if ${ac_cv_prog_cxx_openmp+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifndef _OPENMP
 choke me
#endif
#include <omp.h>
int main () { return omp_get_num_threads (); }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_prog_cxx_openmp='none needed'
else
  ac_cv_prog_cxx_openmp='unsupported'
	  	  	  	  	  	  	                                	  	  	  	  	  	  for ac_option in -qopenmp -fopenmp -xopenmp -openmp -mp -omp -qsmp=omp -homp \
                           -Popenmp --openmp; do
	    ac_save_CXXFLAGS=$CXXFLAGS
	    CXXFLAGS="$CXXFLAGS $ac_option"
	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifndef _OPENMP
 choke me
#endif
#include <omp.h>
int main () { return omp_get_num_threads (); }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_prog_cxx_openmp=$ac_option
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	    CXXFLAGS=$ac_save_CXXFLAGS
	    if test "$ac_cv_prog_cxx_openmp" != unsupported; then
	      break
	    fi
	  done
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_openmp" >&5
$as_echo "$ac_cv_prog_cxx_openmp" >&6; }
    case $ac_cv_prog_cxx_openmp in #(
      "none needed" | unsupported)
	;; #(
      *)
	OPENMP_CXXFLAGS=$ac_cv_prog_cxx_openmp ;;
    esac
  fi



if test $asmjit = true ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether architecture is X86/X64" >&5
$as_echo_n "checking whether architecture is X86/X64... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#if !(defined(_M_IX86 ) || defined(__X86__ ) || defined(__i386  ) || \
      defined(__IA32__) || defined(__I86__ ) || defined(__i386__) || \
      defined(__i486__) || defined(__i586__) || defined(__i686__) || \
      defined(_M_X64  ) || defined(__x86_64) || defined(__x86_64__) || \
      defined(_M_AMD64) || defined(__amd64 ) || defined(__amd64__ ))
this_is_not_x86_x64
#endif

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; };
  x86_x64=true
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; } ;
  x86_x64=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi

if test $asmjit = true && test $x86_x64 = false ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: asmjit does not support this architecture, it will be disabled" >&5
$as_echo "$as_me: WARNING: asmjit does not support this architecture, it will be disabled" >&2;}
  asmjit=false
fi

if test $asmjit = true ; then
  found=ko
# asmjit calls clock_gettime and thus should be linked to rt on Linux
  if test `(uname)` = Linux ; then

  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
$as_echo_n "checking for library containing clock_gettime... " >&6; }
if ${ac_cv_search_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' rt; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_clock_gettime=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_clock_gettime+:} false; then :
  break
fi
done
if ${ac_cv_search_clock_gettime+:} false; then :

else
  ac_cv_search_clock_gettime=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
$as_echo "$ac_cv_search_clock_gettime" >&6; }
ac_res=$ac_cv_search_clock_gettime
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
$as_echo_n "checking for library containing clock_gettime... " >&6; }
if ${ac_cv_search_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_clock_gettime=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_clock_gettime+:} false; then :
  break
fi
done
if ${ac_cv_search_clock_gettime+:} false; then :

else
  ac_cv_search_clock_gettime=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
$as_echo "$ac_cv_search_clock_gettime" >&6; }
ac_res=$ac_cv_search_clock_gettime
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi

  else
    found=ok
  fi
  if test "$found" = ok ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: Enabling embedded asmjit" >&5
$as_echo "$as_me: Enabling embedded asmjit" >&6;}
    $as_echo "#define __PLUMED_HAS_ASMJIT 1" >>confdefs.h

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot link clock_gettime on this Linux, asmjit will not be enabled" >&5
$as_echo "$as_me: WARNING: cannot link clock_gettime on this Linux, asmjit will not be enabled" >&2;}
  fi
fi

if test $dlopen = true ; then

    found=ko
    __PLUMED_HAS_DLOPEN=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
if test "x$ac_cv_header_dlfcn_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5
$as_echo_n "checking for library containing dlopen... " >&6; }
if ${ac_cv_search_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dlopen=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dlopen+:} false; then :
  break
fi
done
if ${ac_cv_search_dlopen+:} false; then :

else
  ac_cv_search_dlopen=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlopen" >&5
$as_echo "$ac_cv_search_dlopen" >&6; }
ac_res=$ac_cv_search_dlopen
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5
$as_echo_n "checking for library containing dlopen... " >&6; }
if ${ac_cv_search_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_dlopen=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_dlopen+:} false; then :
  break
fi
done
if ${ac_cv_search_dlopen+:} false; then :

else
  ac_cv_search_dlopen=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlopen" >&5
$as_echo "$ac_cv_search_dlopen" >&6; }
ac_res=$ac_cv_search_dlopen
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_DLOPEN 1" >>confdefs.h

       __PLUMED_HAS_DLOPEN=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_DLOPEN" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_DLOPEN" >&2;}
    fi

fi

if test $rtld_default = true ; then

    found=ko
    __PLUMED_HAS_RTLD_DEFAULT=no
    if test "${libsearch}" = true ; then
      testlibs=""
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking RTLD_DEFAULT without extra libs" >&5
$as_echo_n "checking RTLD_DEFAULT without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <dlfcn.h>
int
main ()
{
  void* f=dlsym(RTLD_DEFAULT,"path");
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking RTLD_DEFAULT with $all_LIBS" >&5
$as_echo_n "checking RTLD_DEFAULT with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <dlfcn.h>
int
main ()
{
  void* f=dlsym(RTLD_DEFAULT,"path");
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking RTLD_DEFAULT with -l$testlib" >&5
$as_echo_n "checking RTLD_DEFAULT with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <dlfcn.h>
int
main ()
{
  void* f=dlsym(RTLD_DEFAULT,"path");
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_RTLD_DEFAULT 1" >>confdefs.h

      __PLUMED_HAS_RTLD_DEFAULT=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_RTLD_DEFAULT" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_RTLD_DEFAULT" >&2;}
      LIBS="$save_LIBS"
    fi

fi

if test $subprocess = true ; then

    found=ko
    __PLUMED_HAS_SUBPROCESS=no
    if test "${libsearch}" = true ; then
      testlibs=""
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking subprocess without extra libs" >&5
$as_echo_n "checking subprocess without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* random program calling all the functions needed to manage a subprocess */
#include <cstdio>
#include <unistd.h>
#include <csignal>

int
main ()
{
// notice that [] is required to cheat autoconf
  int cp[2];
  FILE* fp;
  char* arr[3];
  arr[0]=NULL;
  arr[1]=NULL;
  arr[2]=NULL;
  arr[3]=NULL;
  if(pipe(cp)>=0)
  if(fork()>=0)
  if(close(1)>=0)
  if(dup(cp[1])>=0) {
    fp=fdopen(cp[0],"w");
    execv(arr[0],arr);
  }
  auto p=fork();
  kill(p,SIGINT);
  kill(p,SIGCONT);
  kill(p,SIGSTOP);
  return 0;
}


_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking subprocess with $all_LIBS" >&5
$as_echo_n "checking subprocess with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* random program calling all the functions needed to manage a subprocess */
#include <cstdio>
#include <unistd.h>
#include <csignal>

int
main ()
{
// notice that [] is required to cheat autoconf
  int cp[2];
  FILE* fp;
  char* arr[3];
  arr[0]=NULL;
  arr[1]=NULL;
  arr[2]=NULL;
  arr[3]=NULL;
  if(pipe(cp)>=0)
  if(fork()>=0)
  if(close(1)>=0)
  if(dup(cp[1])>=0) {
    fp=fdopen(cp[0],"w");
    execv(arr[0],arr);
  }
  auto p=fork();
  kill(p,SIGINT);
  kill(p,SIGCONT);
  kill(p,SIGSTOP);
  return 0;
}


_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking subprocess with -l$testlib" >&5
$as_echo_n "checking subprocess with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* random program calling all the functions needed to manage a subprocess */
#include <cstdio>
#include <unistd.h>
#include <csignal>

int
main ()
{
// notice that [] is required to cheat autoconf
  int cp[2];
  FILE* fp;
  char* arr[3];
  arr[0]=NULL;
  arr[1]=NULL;
  arr[2]=NULL;
  arr[3]=NULL;
  if(pipe(cp)>=0)
  if(fork()>=0)
  if(close(1)>=0)
  if(dup(cp[1])>=0) {
    fp=fdopen(cp[0],"w");
    execv(arr[0],arr);
  }
  auto p=fork();
  kill(p,SIGINT);
  kill(p,SIGCONT);
  kill(p,SIGSTOP);
  return 0;
}


_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_SUBPROCESS 1" >>confdefs.h

      __PLUMED_HAS_SUBPROCESS=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_SUBPROCESS" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_SUBPROCESS" >&2;}
      LIBS="$save_LIBS"
    fi

fi

if test $execinfo = true ; then

    found=ko
    __PLUMED_HAS_EXECINFO=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "execinfo.h" "ac_cv_header_execinfo_h" "$ac_includes_default"
if test "x$ac_cv_header_execinfo_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing backtrace" >&5
$as_echo_n "checking for library containing backtrace... " >&6; }
if ${ac_cv_search_backtrace+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char backtrace ();
int
main ()
{
return backtrace ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_backtrace=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_backtrace+:} false; then :
  break
fi
done
if ${ac_cv_search_backtrace+:} false; then :

else
  ac_cv_search_backtrace=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_backtrace" >&5
$as_echo "$ac_cv_search_backtrace" >&6; }
ac_res=$ac_cv_search_backtrace
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing backtrace" >&5
$as_echo_n "checking for library containing backtrace... " >&6; }
if ${ac_cv_search_backtrace+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char backtrace ();
int
main ()
{
return backtrace ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_backtrace=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_backtrace+:} false; then :
  break
fi
done
if ${ac_cv_search_backtrace+:} false; then :

else
  ac_cv_search_backtrace=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_backtrace" >&5
$as_echo "$ac_cv_search_backtrace" >&6; }
ac_res=$ac_cv_search_backtrace
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_EXECINFO 1" >>confdefs.h

       __PLUMED_HAS_EXECINFO=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_EXECINFO" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_EXECINFO" >&2;}
    fi

fi
if test $zlib = true ; then

    found=ko
    __PLUMED_HAS_ZLIB=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "zlib.h" "ac_cv_header_zlib_h" "$ac_includes_default"
if test "x$ac_cv_header_zlib_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gzopen" >&5
$as_echo_n "checking for library containing gzopen... " >&6; }
if ${ac_cv_search_gzopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char gzopen ();
int
main ()
{
return gzopen ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' z; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_gzopen=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_gzopen+:} false; then :
  break
fi
done
if ${ac_cv_search_gzopen+:} false; then :

else
  ac_cv_search_gzopen=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gzopen" >&5
$as_echo "$ac_cv_search_gzopen" >&6; }
ac_res=$ac_cv_search_gzopen
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gzopen" >&5
$as_echo_n "checking for library containing gzopen... " >&6; }
if ${ac_cv_search_gzopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char gzopen ();
int
main ()
{
return gzopen ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_gzopen=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_gzopen+:} false; then :
  break
fi
done
if ${ac_cv_search_gzopen+:} false; then :

else
  ac_cv_search_gzopen=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gzopen" >&5
$as_echo "$ac_cv_search_gzopen" >&6; }
ac_res=$ac_cv_search_gzopen
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_ZLIB 1" >>confdefs.h

       __PLUMED_HAS_ZLIB=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_ZLIB" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_ZLIB" >&2;}
    fi

fi

if test $gsl = true ; then
  found=ko

  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing cblas_dgemv" >&5
$as_echo_n "checking for library containing cblas_dgemv... " >&6; }
if ${ac_cv_search_cblas_dgemv+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char cblas_dgemv ();
int
main ()
{
return cblas_dgemv ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' gslcblas; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_cblas_dgemv=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_cblas_dgemv+:} false; then :
  break
fi
done
if ${ac_cv_search_cblas_dgemv+:} false; then :

else
  ac_cv_search_cblas_dgemv=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_cblas_dgemv" >&5
$as_echo "$ac_cv_search_cblas_dgemv" >&6; }
ac_res=$ac_cv_search_cblas_dgemv
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

    ac_fn_cxx_check_header_mongrel "$LINENO" "gsl/gsl_vector.h" "ac_cv_header_gsl_gsl_vector_h" "$ac_includes_default"
if test "x$ac_cv_header_gsl_gsl_vector_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gsl_vector_alloc" >&5
$as_echo_n "checking for library containing gsl_vector_alloc... " >&6; }
if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char gsl_vector_alloc ();
int
main ()
{
return gsl_vector_alloc ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' gsl; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_gsl_vector_alloc=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  break
fi
done
if ${ac_cv_search_gsl_vector_alloc+:} false; then :

else
  ac_cv_search_gsl_vector_alloc=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gsl_vector_alloc" >&5
$as_echo "$ac_cv_search_gsl_vector_alloc" >&6; }
ac_res=$ac_cv_search_gsl_vector_alloc
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gsl_vector_alloc" >&5
$as_echo_n "checking for library containing gsl_vector_alloc... " >&6; }
if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char gsl_vector_alloc ();
int
main ()
{
return gsl_vector_alloc ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_gsl_vector_alloc=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  break
fi
done
if ${ac_cv_search_gsl_vector_alloc+:} false; then :

else
  ac_cv_search_gsl_vector_alloc=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gsl_vector_alloc" >&5
$as_echo "$ac_cv_search_gsl_vector_alloc" >&6; }
ac_res=$ac_cv_search_gsl_vector_alloc
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi



fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing cblas_dgemv" >&5
$as_echo_n "checking for library containing cblas_dgemv... " >&6; }
if ${ac_cv_search_cblas_dgemv+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char cblas_dgemv ();
int
main ()
{
return cblas_dgemv ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_cblas_dgemv=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_cblas_dgemv+:} false; then :
  break
fi
done
if ${ac_cv_search_cblas_dgemv+:} false; then :

else
  ac_cv_search_cblas_dgemv=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_cblas_dgemv" >&5
$as_echo "$ac_cv_search_cblas_dgemv" >&6; }
ac_res=$ac_cv_search_cblas_dgemv
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

    ac_fn_cxx_check_header_mongrel "$LINENO" "gsl/gsl_vector.h" "ac_cv_header_gsl_gsl_vector_h" "$ac_includes_default"
if test "x$ac_cv_header_gsl_gsl_vector_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gsl_vector_alloc" >&5
$as_echo_n "checking for library containing gsl_vector_alloc... " >&6; }
if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char gsl_vector_alloc ();
int
main ()
{
return gsl_vector_alloc ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' gsl; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_gsl_vector_alloc=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  break
fi
done
if ${ac_cv_search_gsl_vector_alloc+:} false; then :

else
  ac_cv_search_gsl_vector_alloc=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gsl_vector_alloc" >&5
$as_echo "$ac_cv_search_gsl_vector_alloc" >&6; }
ac_res=$ac_cv_search_gsl_vector_alloc
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gsl_vector_alloc" >&5
$as_echo_n "checking for library containing gsl_vector_alloc... " >&6; }
if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char gsl_vector_alloc ();
int
main ()
{
return gsl_vector_alloc ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_gsl_vector_alloc=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_gsl_vector_alloc+:} false; then :
  break
fi
done
if ${ac_cv_search_gsl_vector_alloc+:} false; then :

else
  ac_cv_search_gsl_vector_alloc=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gsl_vector_alloc" >&5
$as_echo "$ac_cv_search_gsl_vector_alloc" >&6; }
ac_res=$ac_cv_search_gsl_vector_alloc
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi



fi

  fi

  if test $found = ok ; then
    $as_echo "#define __PLUMED_HAS_GSL 1" >>confdefs.h

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_GSL" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_GSL" >&2;}
  fi
fi

if test $boost_graph = true ; then

    found=ko
    __PLUMED_HAS_BOOST_GRAPH=no
    if test "${libsearch}" = true ; then
      testlibs=""
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking boost graph without extra libs" >&5
$as_echo_n "checking boost graph without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <boost/graph/graph_utility.hpp>
#include <boost/graph/adjacency_matrix.hpp>
int
main ()
{
  boost::adjacency_matrix<boost::directedS> a(1);
  ;
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking boost graph with $all_LIBS" >&5
$as_echo_n "checking boost graph with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <boost/graph/graph_utility.hpp>
#include <boost/graph/adjacency_matrix.hpp>
int
main ()
{
  boost::adjacency_matrix<boost::directedS> a(1);
  ;
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking boost graph with -l$testlib" >&5
$as_echo_n "checking boost graph with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <boost/graph/graph_utility.hpp>
#include <boost/graph/adjacency_matrix.hpp>
int
main ()
{
  boost::adjacency_matrix<boost::directedS> a(1);
  ;
  return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_BOOST_GRAPH 1" >>confdefs.h

      __PLUMED_HAS_BOOST_GRAPH=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_BOOST_GRAPH" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_BOOST_GRAPH" >&2;}
      LIBS="$save_LIBS"
    fi

fi

if test $boost_serialization = true ; then

    found=ko
    __PLUMED_HAS_BOOST_SERIALIZATION=no
    if test "${libsearch}" = true ; then
      testlibs="boost_serialization boost_serialization-mt"
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking boost serialization without extra libs" >&5
$as_echo_n "checking boost serialization without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <fstream>
#include <boost/archive/text_oarchive.hpp>
int main() {
    std::ofstream ofs("filename");
    boost::archive::text_oarchive oa(ofs);
    return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking boost serialization with $all_LIBS" >&5
$as_echo_n "checking boost serialization with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <fstream>
#include <boost/archive/text_oarchive.hpp>
int main() {
    std::ofstream ofs("filename");
    boost::archive::text_oarchive oa(ofs);
    return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking boost serialization with -l$testlib" >&5
$as_echo_n "checking boost serialization with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <fstream>
#include <boost/archive/text_oarchive.hpp>
int main() {
    std::ofstream ofs("filename");
    boost::archive::text_oarchive oa(ofs);
    return 0;
}

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_BOOST_SERIALIZATION 1" >>confdefs.h

      __PLUMED_HAS_BOOST_SERIALIZATION=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_BOOST_SERIALIZATION" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_BOOST_SERIALIZATION" >&2;}
      LIBS="$save_LIBS"
    fi

# notice: macports install libraries with -mt suffix
fi

if test $fftw = true ; then

    found=ko
    __PLUMED_HAS_FFTW=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "fftw3.h" "ac_cv_header_fftw3_h" "$ac_includes_default"
if test "x$ac_cv_header_fftw3_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing fftw_execute" >&5
$as_echo_n "checking for library containing fftw_execute... " >&6; }
if ${ac_cv_search_fftw_execute+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char fftw_execute ();
int
main ()
{
return fftw_execute ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' fftw3; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_fftw_execute=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_fftw_execute+:} false; then :
  break
fi
done
if ${ac_cv_search_fftw_execute+:} false; then :

else
  ac_cv_search_fftw_execute=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_fftw_execute" >&5
$as_echo "$ac_cv_search_fftw_execute" >&6; }
ac_res=$ac_cv_search_fftw_execute
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing fftw_execute" >&5
$as_echo_n "checking for library containing fftw_execute... " >&6; }
if ${ac_cv_search_fftw_execute+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char fftw_execute ();
int
main ()
{
return fftw_execute ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_fftw_execute=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_fftw_execute+:} false; then :
  break
fi
done
if ${ac_cv_search_fftw_execute+:} false; then :

else
  ac_cv_search_fftw_execute=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_fftw_execute" >&5
$as_echo "$ac_cv_search_fftw_execute" >&6; }
ac_res=$ac_cv_search_fftw_execute
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_FFTW 1" >>confdefs.h

       __PLUMED_HAS_FFTW=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_FFTW" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_FFTW" >&2;}
    fi

fi

# python executable: if PYTHON_BUILD_FOUND is on will store the python executable

# set if PYTHON_BIN has build in its environment


# if PYTHON_BIN is defined, it is expected to be the full path to python
# Otherwise, search from a list of names:
if test -z "$PYTHON_BIN" ; then
    for ac_prog in python3
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_PYTHON_BIN+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$PYTHON_BIN"; then
  ac_cv_prog_PYTHON_BIN="$PYTHON_BIN" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_PYTHON_BIN="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
PYTHON_BIN=$ac_cv_prog_PYTHON_BIN
if test -n "$PYTHON_BIN"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_BIN" >&5
$as_echo "$PYTHON_BIN" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$PYTHON_BIN" && break
done

fi
if test -n "$PYTHON_BIN" ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: Python executable is $PYTHON_BIN" >&5
$as_echo "$as_me: Python executable is $PYTHON_BIN" >&6;}
  if test $python = true  ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking python wrapper: support for required python modules (python3, setuptools, build)" >&5
$as_echo_n "checking python wrapper: support for required python modules (python3, setuptools, build)... " >&6; }
    testimport="
from setuptools import setup
from setuptools import Extension
import build
import sys
if sys.version_info < (3,):
    raise ImportError('PLUMED>= 2.6 only supports Python 3')
"
    if echo "$testimport" | "$PYTHON_BIN" 1>/dev/null 2>/dev/null;  then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
       $as_echo "#define __PLUMED_HAS_PYTHON 1" >>confdefs.h

       PYTHON_BUILD_FOUND=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable python interface" >&5
$as_echo "$as_me: WARNING: cannot enable python interface" >&2;}
    fi
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable python interface" >&5
$as_echo "$as_me: WARNING: cannot enable python interface" >&2;}
  fi
fi

if test "${PYTHON_BUILD_FOUND}" != yes; then
  #this deactivate python bin if no package was found
  PYTHON_BIN=
fi

if test "$af_ocl" = true ; then

    found=ko
    __PLUMED_HAS_ARRAYFIRE=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "arrayfire.h" "ac_cv_header_arrayfire_h" "$ac_includes_default"
if test "x$ac_cv_header_arrayfire_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' afopencl; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_ARRAYFIRE 1" >>confdefs.h

       __PLUMED_HAS_ARRAYFIRE=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE" >&2;}
    fi


    found=ko
    __PLUMED_HAS_ARRAYFIRE_OCL=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "arrayfire.h" "ac_cv_header_arrayfire_h" "$ac_includes_default"
if test "x$ac_cv_header_arrayfire_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' afopencl; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_ARRAYFIRE_OCL 1" >>confdefs.h

       __PLUMED_HAS_ARRAYFIRE_OCL=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE_OCL" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE_OCL" >&2;}
    fi

fi
if test "$af_cuda" = true ; then

    found=ko
    __PLUMED_HAS_ARRAYFIRE=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "arrayfire.h" "ac_cv_header_arrayfire_h" "$ac_includes_default"
if test "x$ac_cv_header_arrayfire_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' afcuda; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_ARRAYFIRE 1" >>confdefs.h

       __PLUMED_HAS_ARRAYFIRE=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE" >&2;}
    fi


    found=ko
    __PLUMED_HAS_ARRAYFIRE_CUDA=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "arrayfire.h" "ac_cv_header_arrayfire_h" "$ac_includes_default"
if test "x$ac_cv_header_arrayfire_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' afcuda; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_ARRAYFIRE_CUDA 1" >>confdefs.h

       __PLUMED_HAS_ARRAYFIRE_CUDA=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE_CUDA" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE_CUDA" >&2;}
    fi

fi
if test "$af_cpu" = true ; then

    found=ko
    __PLUMED_HAS_ARRAYFIRE=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "arrayfire.h" "ac_cv_header_arrayfire_h" "$ac_includes_default"
if test "x$ac_cv_header_arrayfire_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' afcpu; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing af_is_double" >&5
$as_echo_n "checking for library containing af_is_double... " >&6; }
if ${ac_cv_search_af_is_double+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char af_is_double ();
int
main ()
{
return af_is_double ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_af_is_double=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_af_is_double+:} false; then :
  break
fi
done
if ${ac_cv_search_af_is_double+:} false; then :

else
  ac_cv_search_af_is_double=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_af_is_double" >&5
$as_echo "$ac_cv_search_af_is_double" >&6; }
ac_res=$ac_cv_search_af_is_double
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_ARRAYFIRE 1" >>confdefs.h

       __PLUMED_HAS_ARRAYFIRE=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_ARRAYFIRE" >&2;}
    fi

fi

# libmetatomic requires libtorch
if test $libmetatomic = true ; then
  libtorch=true;
fi

#added by luigibonati
if test $libtorch = true ; then
  # disable as-needed in linking libraries (both static and shared)

  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS -Wl,--no-as-needed"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether LDFLAGS can contain -Wl,--no-as-needed" >&5
$as_echo_n "checking whether LDFLAGS can contain -Wl,--no-as-needed... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; LDFLAGS="$save_LDFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext


  # CUDA and CPU libtorch libs have different libraries
  # first test CUDA program

    found=ko
    __PLUMED_HAS_LIBTORCH=no
    if test "${libsearch}" = true ; then
      testlibs=" torch_cpu c10 c10_cuda torch_cuda "
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "true" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking libtorch_cuda without extra libs" >&5
$as_echo_n "checking libtorch_cuda without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    #include <torch/torch.h>
    #include <torch/script.h>
    #include <torch/cuda.h>
    int main() {
      std::cerr << "CUDA is available: " << torch::cuda::is_available() << std::endl;
      torch::Tensor tensor = torch::rand({2, 3});
      torch::Device device = torch::kCPU;
      device = torch::kCUDA;
      tensor.to(device);
      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking libtorch_cuda with $all_LIBS" >&5
$as_echo_n "checking libtorch_cuda with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    #include <torch/torch.h>
    #include <torch/script.h>
    #include <torch/cuda.h>
    int main() {
      std::cerr << "CUDA is available: " << torch::cuda::is_available() << std::endl;
      torch::Tensor tensor = torch::rand({2, 3});
      torch::Device device = torch::kCPU;
      device = torch::kCUDA;
      tensor.to(device);
      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking libtorch_cuda with -l$testlib" >&5
$as_echo_n "checking libtorch_cuda with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    #include <torch/torch.h>
    #include <torch/script.h>
    #include <torch/cuda.h>
    int main() {
      std::cerr << "CUDA is available: " << torch::cuda::is_available() << std::endl;
      torch::Tensor tensor = torch::rand({2, 3});
      torch::Device device = torch::kCPU;
      device = torch::kCUDA;
      tensor.to(device);
      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_LIBTORCH 1" >>confdefs.h

      __PLUMED_HAS_LIBTORCH=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_LIBTORCH" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_LIBTORCH" >&2;}
      LIBS="$save_LIBS"
    fi


  # if not found test CPU version
  if test "$__PLUMED_HAS_LIBTORCH" = no; then
  # AC_MSG_NOTICE([CUDA-enabled libtorch not found (or devices not available), trying with CPU version.])

    found=ko
    __PLUMED_HAS_LIBTORCH=no
    if test "${libsearch}" = true ; then
      testlibs=" torch_cpu c10 "
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "true" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking libtorch_cpu without extra libs" >&5
$as_echo_n "checking libtorch_cpu without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    #include <torch/torch.h>
    #include <torch/script.h>
    int main() {
      torch::Tensor tensor = torch::rand({2, 3});

      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking libtorch_cpu with $all_LIBS" >&5
$as_echo_n "checking libtorch_cpu with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    #include <torch/torch.h>
    #include <torch/script.h>
    int main() {
      torch::Tensor tensor = torch::rand({2, 3});

      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking libtorch_cpu with -l$testlib" >&5
$as_echo_n "checking libtorch_cpu with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    #include <torch/torch.h>
    #include <torch/script.h>
    int main() {
      torch::Tensor tensor = torch::rand({2, 3});

      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_LIBTORCH 1" >>confdefs.h

      __PLUMED_HAS_LIBTORCH=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_LIBTORCH" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_LIBTORCH" >&2;}
      LIBS="$save_LIBS"
    fi

  fi
fi

if test $libmetatomic = true ; then
  # find metatomic & related libraries

    found=ko
    __PLUMED_HAS_LIBMETATOMIC=no
    if test "${libsearch}" = true ; then
      testlibs="metatomic_torch metatensor_torch metatensor"
    else
      testlibs=""
    fi
    save_LIBS="$LIBS"

    # check if multiple libraries are required simultaneously
    multiple="no"
    if test "true" = "true"; then
      multiple="yes"
      all_LIBS=""
      for testlib in $testlibs;
      do
        all_LIBS="$all_LIBS -l$testlib"
      done
      testlibs=" " # to check only without libraries, and later with all together
    fi

    # check without libraries
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking libmetatomic without extra libs" >&5
$as_echo_n "checking libmetatomic without extra libs... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    // torch header creates a lot a pedantic warnings, which we can't do anything about
    // we disable them to make finding the relevant part in the config.log easier
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-Wpedantic"
    #pragma GCC diagnostic ignored "-Wunused-parameter"
    #pragma GCC diagnostic ignored "-Wfloat-equal"
    #pragma GCC diagnostic ignored "-Wfloat-conversion"
    #pragma GCC diagnostic ignored "-Wimplicit-float-conversion"
    #pragma GCC diagnostic ignored "-Wimplicit-int-conversion"
    #pragma GCC diagnostic ignored "-Wshorten-64-to-32"
    #pragma GCC diagnostic ignored "-Wsign-conversion"
    #pragma GCC diagnostic ignored "-Wold-style-cast"
    #include <torch/torch.h>
    #include <torch/script.h>
    #pragma GCC diagnostic pop
    #include <metatensor.hpp>
    #include <metatensor/torch.hpp>
    #include <metatomic/torch.hpp>
    #if METATOMIC_TORCH_VERSION_MAJOR != 0 || METATOMIC_TORCH_VERSION_MINOR != 1
    #error "this code is only compatible with metatomic-torch >=0.1,<0.2"
    #endif
    int main() {
      metatomic_torch::version();
      metatensor_torch::version();
      mts_version();
      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$found" = "ko" ; then
      if test "$multiple" = "yes" ; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking libmetatomic with $all_LIBS" >&5
$as_echo_n "checking libmetatomic with $all_LIBS... " >&6; }
        LIBS="$all_LIBS $LIBS"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    // torch header creates a lot a pedantic warnings, which we can't do anything about
    // we disable them to make finding the relevant part in the config.log easier
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-Wpedantic"
    #pragma GCC diagnostic ignored "-Wunused-parameter"
    #pragma GCC diagnostic ignored "-Wfloat-equal"
    #pragma GCC diagnostic ignored "-Wfloat-conversion"
    #pragma GCC diagnostic ignored "-Wimplicit-float-conversion"
    #pragma GCC diagnostic ignored "-Wimplicit-int-conversion"
    #pragma GCC diagnostic ignored "-Wshorten-64-to-32"
    #pragma GCC diagnostic ignored "-Wsign-conversion"
    #pragma GCC diagnostic ignored "-Wold-style-cast"
    #include <torch/torch.h>
    #include <torch/script.h>
    #pragma GCC diagnostic pop
    #include <metatensor.hpp>
    #include <metatensor/torch.hpp>
    #include <metatomic/torch.hpp>
    #if METATOMIC_TORCH_VERSION_MAJOR != 0 || METATOMIC_TORCH_VERSION_MINOR != 1
    #error "this code is only compatible with metatomic-torch >=0.1,<0.2"
    #endif
    int main() {
      metatomic_torch::version();
      metatensor_torch::version();
      mts_version();
      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
              { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
      else
        for testlib in $testlibs
        do
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking libmetatomic with -l$testlib" >&5
$as_echo_n "checking libmetatomic with -l$testlib... " >&6; }
          LIBS="-l$testlib $LIBS"
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

    // torch header creates a lot a pedantic warnings, which we can't do anything about
    // we disable them to make finding the relevant part in the config.log easier
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-Wpedantic"
    #pragma GCC diagnostic ignored "-Wunused-parameter"
    #pragma GCC diagnostic ignored "-Wfloat-equal"
    #pragma GCC diagnostic ignored "-Wfloat-conversion"
    #pragma GCC diagnostic ignored "-Wimplicit-float-conversion"
    #pragma GCC diagnostic ignored "-Wimplicit-int-conversion"
    #pragma GCC diagnostic ignored "-Wshorten-64-to-32"
    #pragma GCC diagnostic ignored "-Wsign-conversion"
    #pragma GCC diagnostic ignored "-Wold-style-cast"
    #include <torch/torch.h>
    #include <torch/script.h>
    #pragma GCC diagnostic pop
    #include <metatensor.hpp>
    #include <metatensor/torch.hpp>
    #include <metatomic/torch.hpp>
    #if METATOMIC_TORCH_VERSION_MAJOR != 0 || METATOMIC_TORCH_VERSION_MINOR != 1
    #error "this code is only compatible with metatomic-torch >=0.1,<0.2"
    #endif
    int main() {
      metatomic_torch::version();
      metatensor_torch::version();
      mts_version();
      return 0;
    }

_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  found=ok
                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
          if test $found = ok ; then
            break
          fi
          LIBS="$save_LIBS"
        done
      fi
    fi

    if test $found = ok ; then
      $as_echo "#define __PLUMED_HAS_LIBMETATOMIC 1" >>confdefs.h

      __PLUMED_HAS_LIBMETATOMIC=yes
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_LIBMETATOMIC" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_LIBMETATOMIC" >&2;}
      LIBS="$save_LIBS"
    fi

fi

acc_found=ko
if test $openacc = true; then
  if test -z "$PLUMED_ACC_TYPE"; then
    PLUMED_ACC_TYPE=gpu
  fi
# optional libraries follow

    found=ko
    __PLUMED_HAS_OPENACC=no
    ac_fn_cxx_check_header_mongrel "$LINENO" "openacc.h" "ac_cv_header_openacc_h" "$ac_includes_default"
if test "x$ac_cv_header_openacc_h" = xyes; then :


  if test "${libsearch}" = true ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing acc_get_device_type" >&5
$as_echo_n "checking for library containing acc_get_device_type... " >&6; }
if ${ac_cv_search_acc_get_device_type+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char acc_get_device_type ();
int
main ()
{
return acc_get_device_type ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_acc_get_device_type=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_acc_get_device_type+:} false; then :
  break
fi
done
if ${ac_cv_search_acc_get_device_type+:} false; then :

else
  ac_cv_search_acc_get_device_type=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_acc_get_device_type" >&5
$as_echo "$ac_cv_search_acc_get_device_type" >&6; }
ac_res=$ac_cv_search_acc_get_device_type
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing acc_get_device_type" >&5
$as_echo_n "checking for library containing acc_get_device_type... " >&6; }
if ${ac_cv_search_acc_get_device_type+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char acc_get_device_type ();
int
main ()
{
return acc_get_device_type ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' ; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"; then :
  ac_cv_search_acc_get_device_type=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_acc_get_device_type+:} false; then :
  break
fi
done
if ${ac_cv_search_acc_get_device_type+:} false; then :

else
  ac_cv_search_acc_get_device_type=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_acc_get_device_type" >&5
$as_echo "$ac_cv_search_acc_get_device_type" >&6; }
ac_res=$ac_cv_search_acc_get_device_type
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  found=ok
fi

  fi


fi


    if test $found = ok ; then
       $as_echo "#define __PLUMED_HAS_OPENACC 1" >>confdefs.h

       __PLUMED_HAS_OPENACC=yes
    else
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cannot enable __PLUMED_HAS_OPENACC" >&5
$as_echo "$as_me: WARNING: cannot enable __PLUMED_HAS_OPENACC" >&2;}
    fi

  if test "$__PLUMED_HAS_OPENACC" = yes; then
    acc_found=ok
    #test if we can compile with openacc

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -acc"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -acc" >&5
$as_echo_n "checking whether $CXX accepts -acc... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext


  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -acc=$PLUMED_ACC_TYPE"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -acc=$PLUMED_ACC_TYPE" >&5
$as_echo_n "checking whether $CXX accepts -acc=$PLUMED_ACC_TYPE... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

    if test "$PLUMED_ACC_TYPE" = "gpu"; then
      if test -n "$PLUMED_ACC_GPU"; then
        for flag in $PLUMED_ACC_GPU; do

  save_CXXFLAGS="$CXXFLAGS"
  CXXFLAGS="$CXXFLAGS -gpu=$flag"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -gpu=$flag" >&5
$as_echo_n "checking whether $CXX accepts -gpu=$flag... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not linking" >&5
$as_echo "not linking" >&6; }; CXXFLAGS="$save_CXXFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; CXXFLAGS="$save_CXXFLAGS"

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

        done
      fi
    fi
    LDSHARED="$LDSHARED -acc -static-nvidia"
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Please remember to personalize the openacc settings with  \"PLUMED_ACC_GPU\"" >&5
$as_echo "$as_me: WARNING: Please remember to personalize the openacc settings with  \"PLUMED_ACC_GPU\"" >&2;}
  fi
else
  acc_found=ko
fi

# in non-debug mode, add -DNDEBUG
if test "$debug" = false ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: Release mode, adding -DNDEBUG" >&5
$as_echo "$as_me: Release mode, adding -DNDEBUG" >&6;}
  $as_echo "#define NDEBUG 1" >>confdefs.h

fi


# in debug-glibcxx mode, add -D_GLIBCXX_DEBUG
# also take note that we are using this to relax `make nmcheck`
use_debug_glibcxx=no
if test "$debug_glibcxx" = true ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: Check boundaries, adding -D_GLIBCXX_DEBUG" >&5
$as_echo "$as_me: Check boundaries, adding -D_GLIBCXX_DEBUG" >&6;}
  $as_echo "#define _GLIBCXX_DEBUG 1" >>confdefs.h

  use_debug_glibcxx=yes
fi

# this is necessary in many MPI implementations
# I leave it by default, since it seems harmless
$as_echo "#define _REENTRANT 1" >>confdefs.h


#### Options for dynamic library to work properly ####



# these are libraries that should be linked also to MD engines




if test "$shared" = true ; then
  case `(uname)` in
  (Darwin)
    { $as_echo "$as_me:${as_lineno-$LINENO}: *** Special settings for dynamic libraries on OSX ***" >&5
$as_echo "$as_me: *** Special settings for dynamic libraries on OSX ***" >&6;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: Dynamic library extension is 'dylib'" >&5
$as_echo "$as_me: Dynamic library extension is 'dylib'" >&6;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: LDSHARED needs special flags" >&5
$as_echo "$as_me: LDSHARED needs special flags" >&6;}
    SOEXT=dylib
    LDSHARED="$LDSHARED -dynamiclib -Wl,-headerpad_max_install_names"
    if test "$rpath" = true ; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: Switching off rpath on OSX" >&5
$as_echo "$as_me: Switching off rpath on OSX" >&6;}
      rpath=false
    fi
  ;;
  (Linux)
    { $as_echo "$as_me:${as_lineno-$LINENO}: *** Special settings for dynamic libraries on Linux ***" >&5
$as_echo "$as_me: *** Special settings for dynamic libraries on Linux ***" >&6;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: Dynamic library extension is 'so'" >&5
$as_echo "$as_me: Dynamic library extension is 'so'" >&6;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: LDSHARED and LDFLAGS need special flags" >&5
$as_echo "$as_me: LDSHARED and LDFLAGS need special flags" >&6;}
    SOEXT=so
    LDSHARED="$LDSHARED -shared"

  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS -rdynamic"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether LDFLAGS can contain -rdynamic" >&5
$as_echo_n "checking whether LDFLAGS can contain -rdynamic... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; LDFLAGS="$save_LDFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    if test "$bsymbolic" = true ; then

  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS -Wl,-Bsymbolic"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether LDFLAGS can contain -Wl,-Bsymbolic" >&5
$as_echo_n "checking whether LDFLAGS can contain -Wl,-Bsymbolic... " >&6; }
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }; LDFLAGS="$save_LDFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

    fi
  ;;
  (*)
    { $as_echo "$as_me:${as_lineno-$LINENO}: *** Dynamic library only enabled on OSX and Linux ***" >&5
$as_echo "$as_me: *** Dynamic library only enabled on OSX and Linux ***" >&6;}
  esac
fi

# check linking of runtime library
if test -n "$SOEXT"
then
  { $as_echo "$as_me:${as_lineno-$LINENO}: Using LDSHARED='$LDSHARED'" >&5
$as_echo "$as_me: Using LDSHARED='$LDSHARED'" >&6;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: Using LDFLAGS='$LDFLAGS'" >&5
$as_echo "$as_me: Using LDFLAGS='$LDFLAGS'" >&6;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether LDSHARED can create dynamic libraries" >&5
$as_echo_n "checking whether LDSHARED can create dynamic libraries... " >&6; }
  rm -f conftest.*
  echo "void f(void){ return;}" > conftest.cpp
  $CXX $CXXFLAGS $CPPFLAGS -c conftest.cpp 1>/dev/null 2>/dev/null
  $LDSHARED $LDFLAGS conftest.o -o conftest.$SOEXT 1>/dev/null 2>/dev/null
  if test -f conftest.$SOEXT
  then
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: dynamic library will be disabled" >&5
$as_echo "$as_me: WARNING: dynamic library will be disabled" >&2;}
    SOEXT=
  fi
  if test -n "$SOEXT" && test "$rpath" = true ; then
    rm -f conftest.$SOEXT
    readelf=""
    # Extract the first word of "readelf", so it can be a program name with args.
set dummy readelf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_readelf+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$readelf"; then
  ac_cv_prog_readelf="$readelf" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_readelf="found"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
readelf=$ac_cv_prog_readelf
if test -n "$readelf"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $readelf" >&5
$as_echo "$readelf" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    if test "$readelf" = found ; then
      test_LDSHARED="$LDSHARED -Wl,-R -Wl,/some/random/dir/"
      $test_LDSHARED $LDFLAGS conftest.o -o conftest.$SOEXT 1>/dev/null 2>/dev/null
      if readelf -d conftest.$SOEXT | grep RPATH | grep -q /some/random/dir ; then
        LD_MAIN_RUNPATH="-Wl,-R -Wl,\"$libdir:$LIBRARY_PATH\""
        LDSHARED="$LDSHARED $LD_MAIN_RUNPATH"
        { $as_echo "$as_me:${as_lineno-$LINENO}: Enabling RPATH" >&5
$as_echo "$as_me: Enabling RPATH" >&6;}
      elif readelf -d conftest.$SOEXT | grep RUNPATH | grep -q /some/random/dir ; then
        LD_MAIN_RUNPATH="-Wl,-R -Wl,\"$libdir:$LIBRARY_PATH\""
        LDSHARED="$LDSHARED $LD_MAIN_RUNPATH"
        { $as_echo "$as_me:${as_lineno-$LINENO}: Enabling RUNPATH" >&5
$as_echo "$as_me: Enabling RUNPATH" >&6;}
      else
        { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: -R option seems not working, disabling rpath" >&5
$as_echo "$as_me: WARNING: -R option seems not working, disabling rpath" >&2;}
      fi
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: readelf not available, no way to set rpath" >&5
$as_echo "$as_me: WARNING: readelf not available, no way to set rpath" >&2;}
    fi
  fi
  rm -f conftest.*
fi
#### Options for dynamic library to work properly ####


make_doc=no
if test "$doc" = true
then

make_doc=yes

### Look for doxygen
# Extract the first word of "doxygen", so it can be a program name with args.
set dummy doxygen; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_doxygen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$doxygen"; then
  ac_cv_prog_doxygen="$doxygen" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_doxygen="found"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
doxygen=$ac_cv_prog_doxygen
if test -n "$doxygen"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $doxygen" >&5
$as_echo "$doxygen" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


if test "$doxygen" = found
then
  doxygen_version=`doxygen --version | awk 'BEGIN{FS="."}{if($1>1 || ($1==1 && $2>=8)) print "ok"}'`
  if test "$doxygen_version" = ok
  then
    { $as_echo "$as_me:${as_lineno-$LINENO}: Doxygen version is fine" >&5
$as_echo "$as_me: Doxygen version is fine" >&6;}
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Doxygen version is <1.8" >&5
$as_echo "$as_me: WARNING: Doxygen version is <1.8" >&2;}
    make_doc=no
  fi
  # Extract the first word of "dot", so it can be a program name with args.
set dummy dot; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_dot+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$dot"; then
  ac_cv_prog_dot="$dot" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_dot="found"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
dot=$ac_cv_prog_dot
if test -n "$dot"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $dot" >&5
$as_echo "$dot" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  if test "$dot" != found
  then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will not be able to see diagrams in the manual" >&5
$as_echo "$as_me: WARNING: You will not be able to see diagrams in the manual" >&2;}
  fi
else
  make_doc=no
fi
fi

if test "$make_doc" = yes
then
  { $as_echo "$as_me:${as_lineno-$LINENO}: Manuals will be generated" >&5
$as_echo "$as_me: Manuals will be generated" >&6;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: Manuals will not be generated" >&5
$as_echo "$as_me: Manuals will not be generated" >&6;}
fi


make_pdfdoc=""
if test "$pdfdoc" = true && test "$make_doc" = yes
then
  { $as_echo "$as_me:${as_lineno-$LINENO}: A PDF version of the manual will be generated" >&5
$as_echo "$as_me: A PDF version of the manual will be generated" >&6;}
  make_pdfdoc=yes
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: A PDF version of the manual will not be generated" >&5
$as_echo "$as_me: A PDF version of the manual will not be generated" >&6;}
  make_pdfdoc=no
fi


program_can_run=""
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can be run on this machine" >&5
$as_echo_n "checking whether a program can be run on this machine... " >&6; }
if test "$cross_compiling" = yes; then :
   program_can_run=no ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no (cross compiling)" >&5
$as_echo "no (cross compiling)" >&6; }

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifdef __PLUMED_HAS_MPI
#include <mpi.h>
#endif
// notice that [] is required to cheat autoconf
int main(int argc,char*argv[]){
#ifdef __PLUMED_HAS_MPI
// this emulates what happens when plumed
// is compiled with mpi and invoked with --no-mpi
  if(argc==10){
    MPI_Init(&argc,&argv);
    return MPI_Finalize();
  }
#endif
  return 0;
}

_ACEOF
if ac_fn_cxx_try_run "$LINENO"; then :
   program_can_run=yes ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
   program_can_run=no ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


if test $mpi_found = ok ; then

program_can_run_mpi=""
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program compiled with mpi can be run on this machine" >&5
$as_echo_n "checking whether a program compiled with mpi can be run on this machine... " >&6; }
if test "$cross_compiling" = yes; then :
   program_can_run_mpi=no ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no (cross compiling)" >&5
$as_echo "no (cross compiling)" >&6; }

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifdef __PLUMED_HAS_MPI
#include <mpi.h>
#endif
// notice that [] is required to cheat autoconf
int main(int argc,char*argv[]){
#ifdef __PLUMED_HAS_MPI
  MPI_Init(&argc,&argv);
  return MPI_Finalize();
#endif
  return 0;
}

_ACEOF
if ac_fn_cxx_try_run "$LINENO"; then :
   program_can_run_mpi=yes ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
   program_can_run_mpi=no ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi

if test $mpi_found = ok ; then
  if test -n "$MPIEXEC" ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: Regtest suite will use $MPIEXEC command to run MPI tests" >&5
$as_echo "$as_me: Regtest suite will use $MPIEXEC command to run MPI tests" >&6;}
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: Regtest suite will use env var PLUMED_MPIRUN to run MPI tests (default: mpirun)" >&5
$as_echo "$as_me: Regtest suite will use env var PLUMED_MPIRUN to run MPI tests (default: mpirun)" >&6;}
  fi
fi

if test "$SOEXT" = "dylib" ; then
  use_absolute_soname=yes
else
  use_absolute_soname=no
fi


if test "$absolute_soname" = true ; then
  if test "$SOEXT" = "dylib" ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --enable-absolute-soname has no effect on OSX" >&5
$as_echo "$as_me: WARNING: --enable-absolute-soname has no effect on OSX" >&2;}
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: enabling absolute soname. Full path will be hardcoded in plumed library soname" >&5
$as_echo "$as_me: enabling absolute soname. Full path will be hardcoded in plumed library soname" >&6;}
    use_absolute_soname=yes
  fi
fi

if test "$absolute_install_name" = false ; then
  if test "$SOEXT" = "so" ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --disable-absolute-install-name has no effect on Linux" >&5
$as_echo "$as_me: WARNING: --disable-absolute-install-name has no effect on Linux" >&2;}
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: enabling relative install_name. You will have to set DYLD_LIBRARY_PATH yor plumed libraries to be found at runtime" >&5
$as_echo "$as_me: enabling relative install_name. You will have to set DYLD_LIBRARY_PATH yor plumed libraries to be found at runtime" >&6;}
    use_absolute_soname=no
  fi
fi


if test "$SOEXT" = "dylib" ; then
  if test "$loader_path" = true ; then
    use_loader_path=yes
  else
    use_loader_path=no
  fi
else
  use_loader_path=no
fi

#### This further tests are required to allow linking with non c++ compiler
{ $as_echo "$as_me:${as_lineno-$LINENO}: PLUMED seems to be configured properly!" >&5
$as_echo "$as_me: PLUMED seems to be configured properly!" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **************************" >&5
$as_echo "$as_me: **************************" >&6;}

LD_RO=
if test "$ld_r" = true ; then
for test_LD_RO in "$($CXX --print-prog-name=ld) -r -o" "$CXX -Wl,-r -o" "ld -r -o"
do
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C++ objects can be grouped with $test_LD_RO" >&5
$as_echo_n "checking whether C++ objects can be grouped with $test_LD_RO... " >&6; }

  rm -f conftest*

  cat << EOF > conftest-main.cpp
  void f(void);
  int main(int argc,char**argv){ f(); return 0; }
EOF
  cat << EOF > conftest-f.cpp
  void g(void);
  void f(void){ g(); }
EOF
  cat << EOF > conftest-g.cpp
  void g(void){ return; }
EOF

  $CXX $CXXFLAGS -c conftest-main.cpp 1> /dev/null 2> /dev/null
  $CXX $CXXFLAGS -c conftest-f.cpp 1> /dev/null 2> /dev/null
  $CXX $CXXFLAGS -c conftest-g.cpp 1> /dev/null 2> /dev/null

  $test_LD_RO conftest-both.o conftest-f.o conftest-g.o 1> /dev/null 2> /dev/null

  $CXX $CXXFLAGS -o conftest.exe conftest-main.o conftest-both.o 1> /dev/null 2> /dev/null

  if test -f conftest.exe
  then
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    LD_RO="$test_LD_RO"
    break
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
  fi
done

fi


AR_CR=
if test "$ar_cr" = true ; then
for test_AR_CR in "$($CXX --print-prog-name=ar) cr" "ar cr"
do
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether static libraries can be created with $test_AR_CR" >&5
$as_echo_n "checking whether static libraries can be created with $test_AR_CR... " >&6; }

  rm -f conftest*

  cat << EOF > conftest-main.cpp
  void f(void);
  int main(int argc,char**argv){ f(); return 0; }
EOF
  cat << EOF > conftest-f.cpp
  void g(void);
  void f(void){ g(); }
EOF
  cat << EOF > conftest-g.cpp
  void g(void){ return; }
EOF

  $CXX $CXXFLAGS -c conftest-main.cpp 1> /dev/null 2> /dev/null
  $CXX $CXXFLAGS -c conftest-f.cpp 1> /dev/null 2> /dev/null
  $CXX $CXXFLAGS -c conftest-g.cpp 1> /dev/null 2> /dev/null

  $test_AR_CR conftest-both.a conftest-f.o conftest-g.o 1> /dev/null 2> /dev/null

  $CXX $CXXFLAGS -o conftest.exe conftest-main.o conftest-both.a 1> /dev/null 2> /dev/null

  if test -f conftest.exe
  then
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    AR_CR="$test_AR_CR"
    break
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
  fi
done

fi

make_static_archive=no


if test "${static_archive}" = true ; then
  if test -z "$LD_RO" || test -z "$AR_CR" ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: no way to create a static archive if ld -ro or ar cr do not work" >&5
$as_echo "$as_me: WARNING: no way to create a static archive if ld -ro or ar cr do not work" >&2;}
    static_archive=false
  fi
fi

if test "${static_archive}" = true ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether static-object constructors can be linked from a static archive" >&5
$as_echo_n "checking whether static-object constructors can be linked from a static archive... " >&6; }

  magic_token=c1bc476d093a3a5c67b4530e6c54c633593fe9aa
  rm -f conftest-*

  cat << EOF > conftest-main.cpp
  void f(void);
  int main(int argc,char**argv){ f(); return 0; }
EOF
  cat << EOF > conftest-f.cpp
  void f(void){ return; }
EOF
  cat << EOF > conftest-g.cpp
#include <iostream>
  class g{
    public:
    g(){ std::cout<<"$magic_token\n"; }
  } init;
EOF

  $CXX $CXXFLAGS -c conftest-main.cpp 1> /dev/null 2> /dev/null
  $CXX $CXXFLAGS -c conftest-f.cpp 1> /dev/null 2> /dev/null
  $CXX $CXXFLAGS -c conftest-g.cpp 1> /dev/null 2> /dev/null

  $LD_RO conftest-both.o conftest-f.o conftest-g.o 1> /dev/null 2> /dev/null
# linking the previously merged objects should work:
  $AR_CR conftest-both.a conftest-both.o 1> /dev/null 2> /dev/null
# something like the following, instead, should not work:
#  $AR_CR conftest-both.a conftest-f.o conftest-g.o 1> /dev/null 2> /dev/null
#
  $CXX $CXXFLAGS -o conftest.exe conftest-main.o conftest-both.a 1> /dev/null 2> /dev/null
  if grep -q $magic_token ./conftest.exe ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    make_static_archive=yes
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
  fi
fi

if test "${static_patch}" = true ; then

{ $as_echo "$as_me:${as_lineno-$LINENO}: I will now check if C++ objects can be linked by C/Fortran compilers" >&5
$as_echo "$as_me: I will now check if C++ objects can be linked by C/Fortran compilers" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: This is relevant if you want to use plumed patch --static on a non-C++ code" >&5
$as_echo "$as_me: This is relevant if you want to use plumed patch --static on a non-C++ code" >&6;}

for compiler in CC FC
do
  rm -f conftest.* conftest-main.*
  eval compexe=\$$compiler
  if test -n "$compexe" ; then
    case $compiler in
    (CC)
      name=C
      cat << EOF > conftest-main.c
int main(int argc,char**argv){
  return 0;
}
EOF
      $CC -c conftest-main.c
    ;;
    (FC)
      name=FORTRAN
      cat << EOF > conftest-main.f90
       program main
       integer i
       end program main
EOF
      $FC -c conftest-main.f90
    ;;
    esac
    cat << EOF > conftest.cpp
#include <iostream>
void f(void){
  std::cout<<"ciao";return;
}
EOF
    $CXX $CXXFLAGS -c conftest.cpp
# start search:
    found=
    if test "${libsearch}" = true ; then
      testlibs="-lstdc++ -lc++ -lmpi_cxx"
    else
      testlibs=""
    fi
    for testlib in "" $testlibs ; do
      comment=
      test -n "$testlib" && comment=" with library $testlib"
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $name can link a C++ object$comment" >&5
$as_echo_n "checking whether $name can link a C++ object$comment... " >&6; }
      $compexe conftest.o conftest-main.o $LDFLAGS $testlib $LIBS -o conftest.exe 1>/dev/null 2>/dev/null
      if test -f conftest.exe
      then
        found=yes
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        LIBS="$testlib $LIBS"
        break
      else
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
      fi
    done
    if test -z "$found" ; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You might have problems linking $name programs." >&5
$as_echo "$as_me: WARNING: You might have problems linking $name programs." >&2;}
      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Please add c++ library to LIBS" >&5
$as_echo "$as_me: WARNING: Please add c++ library to LIBS" >&2;}
    fi
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: $compiler compiler not configured" >&5
$as_echo "$as_me: $compiler compiler not configured" >&6;}
  fi
  rm -f conftest.* conftest-main.*
done

else
{ $as_echo "$as_me:${as_lineno-$LINENO}: Static patching is disabled, thus tests required for static patching will be skipped" >&5
$as_echo "$as_me: Static patching is disabled, thus tests required for static patching will be skipped" >&6;}
fi

if test "$prefix" = NONE
then
  prefix=/usr/local
fi

pkgconfig_bin=""

for ac_prog in pkg-config
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_pkgconfig_bin+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $pkgconfig_bin in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_pkgconfig_bin="$pkgconfig_bin" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_pkgconfig_bin="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
pkgconfig_bin=$ac_cv_path_pkgconfig_bin
if test -n "$pkgconfig_bin"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pkgconfig_bin" >&5
$as_echo "$pkgconfig_bin" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$pkgconfig_bin" && break
done


if test -z "$BASH_COMPLETION_DIR" && test -n "$pkgconfig_bin"; then
  if test "$prefix" = "$(pkg-config --variable=prefix bash-completion 2>/dev/null)"
  then
    { $as_echo "$as_me:${as_lineno-$LINENO}: bash-completion is installed on the same prefix where plumed will be installed" >&5
$as_echo "$as_me: bash-completion is installed on the same prefix where plumed will be installed" >&6;}
    if pkg-config --variable=completionsdir bash-completion 2>/dev/null >/dev/null ; then
      BASH_COMPLETION_DIR="$(pkg-config --variable=completionsdir  bash-completion 2>/dev/null)"
    fi
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: bash-completion is not installed or it is installed on a different prefix" >&5
$as_echo "$as_me: bash-completion is not installed or it is installed on a different prefix" >&6;}
    pkgconfig_bin=""
  fi
fi

if test -n "$BASH_COMPLETION_DIR"
then
  { $as_echo "$as_me:${as_lineno-$LINENO}: bash completion for plumed will be installed in $BASH_COMPLETION_DIR" >&5
$as_echo "$as_me: bash completion for plumed will be installed in $BASH_COMPLETION_DIR" >&6;}
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: bash completion for plumed will not be installed" >&5
$as_echo "$as_me: bash completion for plumed will not be installed" >&6;}
fi



test "$program_prefix" != NONE &&
  program_transform_name="s&^&$program_prefix&;$program_transform_name"
# Use a double $ so make ignores it.
test "$program_suffix" != NONE &&
  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
# Double any \ or $.
# By default was `s,x,x', remove it if useless.
ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`



# version modified to work in shell script instead of makefile:
program_transform_name_sh=$(echo "${program_transform_name}" | sed 's:\$\$:$:g')
program_name=$(echo plumed | sed "$program_transform_name_sh")

cat >>confdefs.h <<_ACEOF
#define __PLUMED_PROGRAM_NAME "$program_name"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define __PLUMED_SOEXT "$SOEXT"
_ACEOF


if test "$(echo "$program_name" | tr 'A-Z' 'a-z')" != "$(echo "$program_name" | tr 'A-Z' 'a-z' | sed 's/wrapper$//')" ; then
  as_fn_error $? "$program_name is not a valid program name (should not terminate with Wrapper)" "$LINENO" 5
fi
if test "$(echo "$program_name" | tr 'A-Z' 'a-z')" != "$(echo "$program_name" | tr 'A-Z' 'a-z' | sed 's/kernel$//')" ; then
  as_fn_error $? "$program_name is not a valid program name (should not terminate with Kernel)" "$LINENO" 5
fi
if test "$(echo "$program_name" | tr 'A-Z' 'a-z')" != "$(echo "$program_name" | tr 'A-Z' 'a-z' | sed 's/-patch$//')" ; then
  as_fn_error $? "$program_name is not a valid program name (should not terminate with -patch)" "$LINENO" 5
fi
if test "$(echo "$program_name" | tr 'A-Z' 'a-z')" != "$(echo "$program_name" | tr 'A-Z' 'a-z' | sed 's/-config$//')" ; then
  as_fn_error $? "$program_name is not a valid program name (should not terminate with -config)" "$LINENO" 5
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: **** PLUMED will be installed using the following paths:" >&5
$as_echo "$as_me: **** PLUMED will be installed using the following paths:" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** prefix: $prefix" >&5
$as_echo "$as_me: **** prefix: $prefix" >&6;}
if test "$exec_prefix" = NONE ; then
  exec_prefix_='${prefix}'
else
  exec_prefix_="${exec_prefix}"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** exec_prefix: $exec_prefix_" >&5
$as_echo "$as_me: **** exec_prefix: $exec_prefix_" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** bindir: $bindir" >&5
$as_echo "$as_me: **** bindir: $bindir" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** libdir: $libdir" >&5
$as_echo "$as_me: **** libdir: $libdir" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** includedir: $includedir" >&5
$as_echo "$as_me: **** includedir: $includedir" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** datarootdir: $datarootdir" >&5
$as_echo "$as_me: **** datarootdir: $datarootdir" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** datadir: $datadir" >&5
$as_echo "$as_me: **** datadir: $datadir" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** docdir: ${datarootdir}/doc/$program_name" >&5
$as_echo "$as_me: **** docdir: ${datarootdir}/doc/$program_name" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** htmldir: $htmldir" >&5
$as_echo "$as_me: **** htmldir: $htmldir" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** Executable will be named $program_name" >&5
$as_echo "$as_me: **** Executable will be named $program_name" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** As of PLUMED 2.5, you cannot change paths anymore during \"make install\"" >&5
$as_echo "$as_me: **** As of PLUMED 2.5, you cannot change paths anymore during \"make install\"" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: **** Please configure and make clean to change the prefix" >&5
$as_echo "$as_me: **** Please configure and make clean to change the prefix" >&6;}

if test -z "$BASH_COMPLETION_DIR" ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: **** Bash completion for plumed will not be installed, please add the following two lines to your bashrc" >&5
$as_echo "$as_me: WARNING: **** Bash completion for plumed will not be installed, please add the following two lines to your bashrc" >&2;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: **** _$program_name() { eval \"\$($program_name --no-mpi completion 2>/dev/null)\";}" >&5
$as_echo "$as_me: WARNING: **** _$program_name() { eval \"\$($program_name --no-mpi completion 2>/dev/null)\";}" >&2;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: **** complete -F _$program_name -o default $program_name" >&5
$as_echo "$as_me: WARNING: **** complete -F _$program_name -o default $program_name" >&2;}
fi

if test $mpi = true; then
  if test $mpi_found = ok; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: **** PLUMED will be compiled using MPI" >&5
$as_echo "$as_me: **** PLUMED will be compiled using MPI" >&6;}
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: **** PLUMED will NOT be compiled using MPI because MPI have not been found!" >&5
$as_echo "$as_me: WARNING: **** PLUMED will NOT be compiled using MPI because MPI have not been found!" >&2;}
  fi
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: **** PLUMED will be compiled without MPI" >&5
$as_echo "$as_me: **** PLUMED will be compiled without MPI" >&6;}
fi

if test $program_can_run = no ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: plumed executable will not run on this machine" >&5
$as_echo "$as_me: WARNING: plumed executable will not run on this machine" >&2;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: to patch an MD code use 'plumed-patch'" >&5
$as_echo "$as_me: WARNING: to patch an MD code use 'plumed-patch'" >&2;}
elif test $mpi_found = ok ; then
  if test $program_can_run_mpi = no ; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: plumed executable will not run on this machine" >&5
$as_echo "$as_me: WARNING: plumed executable will not run on this machine" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unless you invoke it as 'plumed --no-mpi'" >&5
$as_echo "$as_me: WARNING: unless you invoke it as 'plumed --no-mpi'" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: all command line tools are thus available as 'plumed --no-mpi name-of-the-tool'" >&5
$as_echo "$as_me: WARNING: all command line tools are thus available as 'plumed --no-mpi name-of-the-tool'" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: e.g. 'plumed --no-mpi driver'" >&5
$as_echo "$as_me: WARNING: e.g. 'plumed --no-mpi driver'" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: to patch an MD code use 'plumed --no-mpi patch'" >&5
$as_echo "$as_me: WARNING: to patch an MD code use 'plumed --no-mpi patch'" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: (notice that MPI will be available anyway in the patched code)" >&5
$as_echo "$as_me: WARNING: (notice that MPI will be available anyway in the patched code)" >&2;}
  fi
fi

if test $openacc = true; then
  if test $acc_found = ok; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: **** PLUMED will be compiled using OPENACC" >&5
$as_echo "$as_me: **** PLUMED will be compiled using OPENACC" >&6;}
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: **** PLUMED will NOT be compiled using OPENACC because OPENACC have not been found!" >&5
$as_echo "$as_me: WARNING: **** PLUMED will NOT be compiled using OPENACC because OPENACC have not been found!" >&2;}
  fi
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: **** PLUMED will be compiled without OPENACC" >&5
$as_echo "$as_me: **** PLUMED will be compiled without OPENACC" >&6;}
fi


build_dir=`pwd`



# This is to replace tags in Makefile.conf.in
# saving the result to Makefile.conf
ac_config_files="$ac_config_files Makefile.conf sourceme.sh"

# This is to have the stamp-h file up to date
# The date of this file keeps track of when Makefile.conf and sourceme.sh have been updated
ac_config_files="$ac_config_files stamp-h"


#small report for the final configuaration, useful to inspects flags in the CI
{ $as_echo "$as_me:${as_lineno-$LINENO}: Reporting the configuration:" >&5
$as_echo "$as_me: Reporting the configuration:" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final CXX:         $CXX" >&5
$as_echo "$as_me: Final CXX:         $CXX" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final CXXFLAGS:    $CXXFLAGS" >&5
$as_echo "$as_me: Final CXXFLAGS:    $CXXFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final CPPFLAGS:    $CPPFLAGS" >&5
$as_echo "$as_me: Final CPPFLAGS:    $CPPFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final CFLAGS:      $CFLAGS" >&5
$as_echo "$as_me: Final CFLAGS:      $CFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final LDFLAGS:     $LDFLAGS" >&5
$as_echo "$as_me: Final LDFLAGS:     $LDFLAGS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final LIBS:        $LIBS" >&5
$as_echo "$as_me: Final LIBS:        $LIBS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final STATIC_LIBS: $STATIC_LIBS" >&5
$as_echo "$as_me: Final STATIC_LIBS: $STATIC_LIBS" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final LD:          $LD" >&5
$as_echo "$as_me: Final LD:          $LD" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final LDSHARED:    $LDSHARED" >&5
$as_echo "$as_me: Final LDSHARED:    $LDSHARED" >&6;}
{ $as_echo "$as_me:${as_lineno-$LINENO}: Final SOEXT:       $SOEXT" >&5
$as_echo "$as_me: Final SOEXT:       $SOEXT" >&6;}

cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, we kill variables containing newlines.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(
  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done

  (set) 2>&1 |
    case $as_nl`(ac_space=' '; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      # `set' does not quote correctly, so add quotes: double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \.
      sed -n \
	"s/'/'\\\\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;; #(
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
) |
  sed '
     /^ac_cv_env_/b end
     t clear
     :clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
     t end
     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     :end' >>confcache
if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
  if test -w "$cache_file"; then
    if test "x$cache_file" != "x/dev/null"; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
$as_echo "$as_me: updating cache $cache_file" >&6;}
      if test ! -f "$cache_file" || test -h "$cache_file"; then
	cat confcache >"$cache_file"
      else
        case $cache_file in #(
        */* | ?:*)
	  mv -f confcache "$cache_file"$$ &&
	  mv -f "$cache_file"$$ "$cache_file" ;; #(
        *)
	  mv -f confcache "$cache_file" ;;
	esac
      fi
    fi
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
  fi
fi
rm -f confcache

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
#
# If the first sed substitution is executed (which looks for macros that
# take arguments), then branch to the quote section.  Otherwise,
# look for a macro that doesn't take arguments.
ac_script='
:mline
/\\$/{
 N
 s,\\\n,,
 b mline
}
t clear
:clear
s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*([^)]*)\)[	 ]*\(.*\)/-D\1=\2/g
t quote
s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)/-D\1=\2/g
t quote
b any
:quote
s/[	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
s/\[/\\&/g
s/\]/\\&/g
s/\$/$$/g
H
:any
${
	g
	s/^\n//
	s/\n/ /g
	p
}
'
DEFS=`sed -n "$ac_script" confdefs.h`


ac_libobjs=
ac_ltlibobjs=
U=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
  #    will be set to the directory where LIBOBJS objects are built.
  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs



: "${CONFIG_STATUS=./config.status}"
ac_write_fail=0
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
as_write_fail=0
cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false

SHELL=\${CONFIG_SHELL-$SHELL}
export SHELL
_ASEOF
cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi


as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='print -r --'
  as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='printf %s\n'
  as_echo_n='printf %s'
else
  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
    as_echo_n='/usr/ucb/echo -n'
  else
    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
    as_echo_n_body='eval
      arg=$1;
      case $arg in #(
      *"$as_nl"*)
	expr "X$arg" : "X\\(.*\\)$as_nl";
	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
      esac;
      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
    '
    export as_echo_n_body
    as_echo_n='sh -c $as_echo_n_body as_echo'
  fi
  export as_echo_body
  as_echo='sh -c $as_echo_body as_echo'
fi

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# IFS
# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" ""	$as_nl"

# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi

# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there.  '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH


# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  $as_echo "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error


# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null


# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p
if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi


# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


exec 6>&1
## ----------------------------------- ##
## Main body of $CONFIG_STATUS script. ##
## ----------------------------------- ##
_ASEOF
test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# Save the log message, to keep $0 and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by PLUMED $as_me 2, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

on `(hostname || uname -n) 2>/dev/null | sed 1q`
"

_ACEOF

case $ac_config_files in *"
"*) set x $ac_config_files; shift; ac_config_files=$*;;
esac



cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
# Files that config.status was made for.
config_files="$ac_config_files"

_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
ac_cs_usage="\
\`$as_me' instantiates files and other configuration actions
from templates according to the current configuration.  Unless the files
and actions are specified as TAGs, all are instantiated by default.

Usage: $0 [OPTION]... [TAG]...

  -h, --help       print this help, then exit
  -V, --version    print version number and configuration settings, then exit
      --config     print configuration, then exit
  -q, --quiet, --silent
                   do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
      --file=FILE[:TEMPLATE]
                   instantiate the configuration file FILE

Configuration files:
$config_files

Report bugs to the package provider."

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
PLUMED config.status 2
configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

Copyright (C) 2012 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."

ac_pwd='$ac_pwd'
srcdir='$srcdir'
test -n "\$AWK" || AWK=awk
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# The default lists apply if the user does not specify any file.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=?*)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  --*=)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=
    ac_shift=:
    ;;
  *)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  esac

  case $ac_option in
  # Handling of the options.
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
    $as_echo "$ac_cs_version"; exit ;;
  --config | --confi | --conf | --con | --co | --c )
    $as_echo "$ac_cs_config"; exit ;;
  --debug | --debu | --deb | --de | --d | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    '') as_fn_error $? "missing file argument" ;;
    esac
    as_fn_append CONFIG_FILES " '$ac_optarg'"
    ac_need_defaults=false;;
  --he | --h |  --help | --hel | -h )
    $as_echo "$ac_cs_usage"; exit ;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) as_fn_error $? "unrecognized option: \`$1'
Try \`$0 --help' for more information." ;;

  *) as_fn_append ac_config_targets " $1"
     ac_need_defaults=false ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
if \$ac_cs_recheck; then
  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
  shift
  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
  CONFIG_SHELL='$SHELL'
  export CONFIG_SHELL
  exec "\$@"
fi

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
  $as_echo "$ac_log"
} >&5

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1

# Handling of arguments.
for ac_config_target in $ac_config_targets
do
  case $ac_config_target in
    "Makefile.conf") CONFIG_FILES="$CONFIG_FILES Makefile.conf" ;;
    "sourceme.sh") CONFIG_FILES="$CONFIG_FILES sourceme.sh" ;;
    "stamp-h") CONFIG_FILES="$CONFIG_FILES stamp-h" ;;

  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
  esac
done


# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason against having it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Hook for its removal unless debugging.
# Note that there is a small window in which the directory will not be cleaned:
# after its creation but before its name has been assigned to `$tmp'.
$debug ||
{
  tmp= ac_tmp=
  trap 'exit_status=$?
  : "${ac_tmp:=$tmp}"
  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
' 0
  trap 'as_fn_exit 1' 1 2 13 15
}
# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
  test -d "$tmp"
}  ||
{
  tmp=./conf$$-$RANDOM
  (umask 077 && mkdir "$tmp")
} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
ac_tmp=$tmp

# Set up the scripts for CONFIG_FILES section.
# No need to generate them if there are no CONFIG_FILES.
# This happens for instance with `./config.status config.h'.
if test -n "$CONFIG_FILES"; then


ac_cr=`echo X | tr X '\015'`
# On cygwin, bash can eat \r inside `` if the user requested igncr.
# But we know of no other shell where ac_cr would be empty at this
# point, so we can use a bashism as a fallback.
if test "x$ac_cr" = x; then
  eval ac_cr=\$\'\\r\'
fi
ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
  ac_cs_awk_cr='\\r'
else
  ac_cs_awk_cr=$ac_cr
fi

echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
_ACEOF


{
  echo "cat >conf$$subs.awk <<_ACEOF" &&
  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
  echo "_ACEOF"
} >conf$$subs.sh ||
  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
ac_delim='%!_!# '
for ac_last_try in false false false false false :; do
  . ./conf$$subs.sh ||
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5

  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
  if test $ac_delim_n = $ac_delim_num; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done
rm -f conf$$subs.sh

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
_ACEOF
sed -n '
h
s/^/S["/; s/!.*/"]=/
p
g
s/^[^!]*!//
:repl
t repl
s/'"$ac_delim"'$//
t delim
:nl
h
s/\(.\{148\}\)..*/\1/
t more1
s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
p
n
b repl
:more1
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t nl
:delim
h
s/\(.\{148\}\)..*/\1/
t more2
s/["\\]/\\&/g; s/^/"/; s/$/"/
p
b
:more2
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t delim
' <conf$$subs.awk | sed '
/^[^""]/{
  N
  s/\n//
}
' >>$CONFIG_STATUS || ac_write_fail=1
rm -f conf$$subs.awk
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACAWK
cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
  for (key in S) S_is_set[key] = 1
  FS = ""

}
{
  line = $ 0
  nfields = split(line, field, "@")
  substed = 0
  len = length(field[1])
  for (i = 2; i < nfields; i++) {
    key = field[i]
    keylen = length(key)
    if (S_is_set[key]) {
      value = S[key]
      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
      len += length(value) + length(field[++i])
      substed = 1
    } else
      len += 1 + keylen
  }

  print line
}

_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
else
  cat
fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
_ACEOF

# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
h
s///
s/^/:/
s/[	 ]*$/:/
s/:\$(srcdir):/:/g
s/:\${srcdir}:/:/g
s/:@srcdir@:/:/g
s/^:*//
s/:*$//
x
s/\(=[	 ]*\).*/\1/
G
s/\n//
s/^[^=]*=[	 ]*$//
}'
fi

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
fi # test -n "$CONFIG_FILES"


eval set X "  :F $CONFIG_FILES      "
shift
for ac_tag
do
  case $ac_tag in
  :[FHLC]) ac_mode=$ac_tag; continue;;
  esac
  case $ac_mode$ac_tag in
  :[FHL]*:*);;
  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
  :[FH]-) ac_tag=-:-;;
  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
  esac
  ac_save_IFS=$IFS
  IFS=:
  set x $ac_tag
  IFS=$ac_save_IFS
  shift
  ac_file=$1
  shift

  case $ac_mode in
  :L) ac_source=$1;;
  :[FH])
    ac_file_inputs=
    for ac_f
    do
      case $ac_f in
      -) ac_f="$ac_tmp/stdin";;
      *) # Look for the file first in the build tree, then in the source tree
	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
	 # because $ac_f cannot contain `:'.
	 test -f "$ac_f" ||
	   case $ac_f in
	   [\\/$]*) false;;
	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
	   esac ||
	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
      esac
      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
      as_fn_append ac_file_inputs " '$ac_f'"
    done

    # Let's still pretend it is `configure' which instantiates (i.e., don't
    # use $as_me), people would be surprised to read:
    #    /* config.h.  Generated by config.status.  */
    configure_input='Generated from '`
	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
	`' by configure.'
    if test x"$ac_file" != x-; then
      configure_input="$ac_file.  $configure_input"
      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
$as_echo "$as_me: creating $ac_file" >&6;}
    fi
    # Neutralize special characters interpreted by sed in replacement strings.
    case $configure_input in #(
    *\&* | *\|* | *\\* )
       ac_sed_conf_input=`$as_echo "$configure_input" |
       sed 's/[\\\\&|]/\\\\&/g'`;; #(
    *) ac_sed_conf_input=$configure_input;;
    esac

    case $ac_tag in
    *:-:* | *:-) cat >"$ac_tmp/stdin" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
    esac
    ;;
  esac

  ac_dir=`$as_dirname -- "$ac_file" ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  as_dir="$ac_dir"; as_fn_mkdir_p
  ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix


  case $ac_mode in
  :F)
  #
  # CONFIG_FILE
  #

_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# If the template does not know about datarootdir, expand it.
# FIXME: This hack should be removed a few years after 2.60.
ac_datarootdir_hack=; ac_datarootdir_seen=
ac_sed_dataroot='
/datarootdir/ {
  p
  q
}
/@datadir@/p
/@docdir@/p
/@infodir@/p
/@localedir@/p
/@mandir@/p'
case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
*datarootdir*) ac_datarootdir_seen=yes;;
*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  ac_datarootdir_hack='
  s&@datadir@&$datadir&g
  s&@docdir@&$docdir&g
  s&@infodir@&$infodir&g
  s&@localedir@&$localedir&g
  s&@mandir@&$mandir&g
  s&\\\${datarootdir}&$datarootdir&g' ;;
esac
_ACEOF

# Neutralize VPATH when `$srcdir' = `.'.
# Shell code in configure.ac might set extrasub.
# FIXME: do we really want to maintain this feature?
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_sed_extra="$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s|@configure_input@|$ac_sed_conf_input|;t t
s&@top_builddir@&$ac_top_builddir_sub&;t t
s&@top_build_prefix@&$ac_top_build_prefix&;t t
s&@srcdir@&$ac_srcdir&;t t
s&@abs_srcdir@&$ac_abs_srcdir&;t t
s&@top_srcdir@&$ac_top_srcdir&;t t
s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
s&@builddir@&$ac_builddir&;t t
s&@abs_builddir@&$ac_abs_builddir&;t t
s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
$ac_datarootdir_hack
"
eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5

test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
      "$ac_tmp/out"`; test -z "$ac_out"; } &&
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&5
$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&2;}

  rm -f "$ac_tmp/stdin"
  case $ac_file in
  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
  esac \
  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 ;;



  esac


  case $ac_file$ac_mode in
    "stamp-h":F) echo timestamp > stamp-h ;;

  esac
done # for ac_tag


as_fn_exit 0
_ACEOF
ac_clean_files=$ac_clean_files_save

test $ac_write_fail = 0 ||
  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5


# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || as_fn_exit 1
fi
if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
fi