configure

#!/bin/sh
# $Id: configure 890 2009-04-21 17:14:44Z hoenicke $
#
# Generator for brickOS host-OS-dependend Makefile variables
#
# 15.10.02    -    Version 1.0        M. Obenland
#                        obenland@t-online.de
#
# 21.10.02    -    Version 1.0    Updates      S. Moraco
#                        stephen@debian.org
#
# 31.10.02  -  Version 1.0a Changed name separation routine
#                           to use dirname / basename to handle
#                           'gcc' in pathname    M. Obenland
#                           obenland@t-online.de
#
# 01.06.03  -  Version 1.10 Changed array of search paths to a list
#                           for compatibility with POSIX /bin/sh
#                           F. Gifford fgiff@users.sourceforge.net
#

echo ""
echo "Welcome to the brickOS-bibo Makefile configurator."
echo "Attempting to find the gcc compiler for the h8300. (This might take some time.)"
echo ""

TOOL_BASE_NAME=gcc

if [ -z ${CROSSTOOLPREFIX+x} ] ; then
  #  Check for known files in known locations, first,
  #    so can avoid expensive search
  #
  #   Known directories in which the h8300 toolchain might be found
  TOOL_DIR="\"\"
             /usr/local/bin
             /usr/bin
             /usr/local/brickbot/bin
             /usr/local/brickos/bin
             /usr/local/lego/bin
             /usr/local/rcx/bin
             /usr/local/h8300-hms/bin
             /usr/h8300-hitachi-hms/bin
             /usr/local/crossgcc/h8300-hitachi-hms/bin
            "
  
  #   Known PREFIXs of the h8300 toolchain
  TOOL_PREFIX="
               h8300-hitachi-coff-
               h8300-hitachi-hms-
               h8300-hms-
               h8300hms-
              "

  TOOL_SUFFIX="\"\"
               -3
               -4.4
              "

  #  for each path, do...
  for TOOL_DIR_CANDIDATE in $TOOL_DIR
  do
    # Handle the empty string ("")
    TOOL_DIR_CANDIDATE=${TOOL_DIR_CANDIDATE%\"\"}
	# Append a trailing slash only if non-empty
	TOOL_DIR_CANDIDATE=${TOOL_DIR_CANDIDATE}${TOOL_DIR_CANDIDATE:+/}

    #  for each basename prefix. do...
    for TOOL_PREFIX_CANDIDATE in $TOOL_PREFIX
    do
      TOOL_PATH_PREFIX_CANDIDATE="${TOOL_DIR_CANDIDATE}${TOOL_PREFIX_CANDIDATE}"

      #  for each suffix (empty string, -3, and -4.4)
      for TOOL_SUFFIX_CANDIDATE in ${CROSSTOOLSUFFIX:-$TOOL_SUFFIX}
      do
        TOOL_SUFFIX_CANDIDATE="${TOOL_SUFFIX_CANDIDATE%\"\"}"

        #  for each suffix (.exe and empty str), do...
        for TOOL_EXT_CANDIDATE in ".exe" ""
        do
          TOOL_FULL_PATH_TEST="${TOOL_PATH_PREFIX_CANDIDATE}${TOOL_BASE_NAME}${TOOL_SUFFIX_CANDIDATE}${TOOL_EXT_CANDIDATE}"
          #echo "Testing \"${TOOL_FULL_PATH_TEST}\""
          if which "${TOOL_FULL_PATH_TEST}" > /dev/null
          then
            CROSSTOOLPREFIX="$TOOL_PATH_PREFIX_CANDIDATE"
            CROSSTOOLSUFFIX="$TOOL_SUFFIX_CANDIDATE"
            CROSSTOOLEXT="$TOOL_EXT_CANDIDATE"
            break  #  have answer, exit extension loop
          fi
        done
        if test -n "$CROSSTOOLPREFIX"
        then
          break  #  have answer, exit filename suffix loop
        fi
      done
      if test -n "$CROSSTOOLPREFIX"
      then
        break  #  have answer, exit filename prefix loop
      fi
    done
    if test -n "$CROSSTOOLPREFIX"
    then
      break  #  have answer, exit directory loop
    fi
  done
  
  #
  #  if didn't find in expected location...
  #   search filesystem for full name of hitachi gcc compiler and path
  #
  #  This can be quite harmful. Uncomment if you really want it.
  #if test -z "$H8FULL"
  #then
  #  H8FULL=`find / -type f \( -name 'h8*gcc' -o -name 'h8*gcc.exe' \) -print`
  #fi

  
  #
  # if no compiler is found, exit
  #
  if test -z "$CROSSTOOLPREFIX"
  then
     echo "No gcc compiler found for the h8300, please install compiler or edit" \
  		"the configure script and try again."
     exit 1
  fi
else
  if which "${CROSSTOOLPREFIX}${TOOL_BASE_NAME}${CROSSTOOLSUFFIX}${CROSSTOOLEXT}" > /dev/null
  then
    echo "No gcc compiler found using the specified CROSSTOOL variables."
    echo "Please install compiler or edit the supplied CROSSTOOL variables and try again."
  	echo "Supplied values were:"
    echo " - CROSSTOOLPREFIX = \"$CROSSTOOLPREFIX\""
    echo " - CROSSTOOLSUFFIX = \"$CROSSTOOLSUFFIX\""
    echo " - CROSSTOOLEXT    = \"$CROSSTOOLEXT\""
    exit 1
  fi
fi

echo " - CROSSTOOLPREFIX = \"$CROSSTOOLPREFIX\""
echo " - CROSSTOOLSUFFIX = \"$CROSSTOOLSUFFIX\""
echo " - CROSSTOOLEXT    = \"$CROSSTOOLEXT\""


# Common CFLAGS for standard (non-cross) compilation
CFLAGS="-O2 -Wall"
CC=gcc

#
#  look for .exe in the compiler name. This indicates Windows environment
#   which means that CYGWIN or DJGPP toolset is being used
#
case "$CROSSTOOLEXT" in
*.exe)
       echo " - Found Cygwin/DJGPP system"
       SED_SFLAG=1
       EXT=.exe
       CFLAGS="-D_WIN32 ${CFLAGS}"
       CFLG_PE='+'
       ;;

*)
       echo " - Found Linux/Unix system"
       SED_SFLAG=""
       EXT=""
       CFLAGS="-g ${CFLAGS}"
       CFLG_PE=""
       ;;
esac
echo ""

MAKEDEPEND="\$(CC) -M"
BRICKOS_ROOT=`pwd`

cat > Makefile.config <<EOF
# DO NOT EDIT: This file is auto-generated by configure
CROSSTOOLPREFIX?=$CROSSTOOLPREFIX
CROSSTOOLSUFFIX?=$CROSSTOOLSUFFIX
CROSSTOOLEXT?=$CROSSTOOLEXT
CC=$CC
CFLAGS+=$CFLAGS
SED_SFLAG=$SED_SFLAG
EXT=$EXT
EOF

exit 0