Rules for compiling C files are ignored for lua compilation

[pfebrer]

If you setup setup.make with a recipe for .c.o:

PLATFORM=linux
FC = gfortran
CC = fake_cc
#
.f90.o:
        $(FC) -c $(FFLAGS) $(INC) $<
.F90.o:
        $(FC) -c $(FFLAGS) $(INC) $<
.c.o:
        whatever $<

You will notice that lua compilation ignores this recipe and CC and instead compiles with gcc and some flags that you have not set.

setup.make:8: warning: overriding recipe for target '.f90.o'
setup.make:8: warning: ignoring old recipe for target '.f90.o'
setup.make:10: warning: overriding recipe for target '.F90.o'
setup.make:10: warning: ignoring old recipe for target '.F90.o'
setup.make:12: warning: overriding recipe for target '.c.o'
setup.make:12: warning: ignoring old recipe for target '.c.o'
(mkdir -p aotus/obj ; cd aotus/obj ; \
	echo "TOP_DIR =../.././aotus" > Makefile ; \
	echo "PLATFORM = linux" >> Makefile ; \
	echo "include ../.././aotus/Makefile.smeka" >> Makefile )
(cd aotus/obj ; make SETUP=../../setup.make )
make[1]: Entering directory '/home/pfebrer/Simulations/siesta/siesta-feedstock/build_artifacts/siesta_1701213319742/work/obj_cmake/External/Lua-Engine/flook-prefix/src/flook-build/aotus/obj'
mkdir -p external
cp -rf ../.././aotus/external/lua-5.3.5 external/
make -C external/lua-5.3.5 linux
make[2]: Entering directory '/home/pfebrer/Simulations/siesta/siesta-feedstock/build_artifacts/siesta_1701213319742/work/obj_cmake/External/Lua-Engine/flook-prefix/src/flook-build/aotus/obj/external/lua-5.3.5'
cd src && make linux
make[3]: Entering directory '/home/pfebrer/Simulations/siesta/siesta-feedstock/build_artifacts/siesta_1701213319742/work/obj_cmake/External/Lua-Engine/flook-prefix/src/flook-build/aotus/obj/external/lua-5.3.5/src'
make all SYSCFLAGS="-DLUA_USE_LINUX" SYSLIBS="-Wl,-E -ldl -lreadline"
make[4]: Entering directory '/home/pfebrer/Simulations/siesta/siesta-feedstock/build_artifacts/siesta_1701213319742/work/obj_cmake/External/Lua-Engine/flook-prefix/src/flook-build/aotus/obj/external/lua-5.3.5/src'
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lapi.o lapi.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lcode.o lcode.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lctype.o lctype.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ldebug.o ldebug.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ldo.o ldo.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ldump.o ldump.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lfunc.o lfunc.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lgc.o lgc.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o llex.o llex.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lmem.o lmem.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lobject.o lobject.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lopcodes.o lopcodes.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lparser.o lparser.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lstate.o lstate.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lstring.o lstring.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ltable.o ltable.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ltm.o ltm.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lundump.o lundump.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lvm.o lvm.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lzio.o lzio.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lauxlib.o lauxlib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lbaselib.o lbaselib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lbitlib.o lbitlib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lcorolib.o lcorolib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ldblib.o ldblib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o liolib.o liolib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lmathlib.o lmathlib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o loslib.o loslib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lstrlib.o lstrlib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o ltablib.o ltablib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o lutf8lib.o lutf8lib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o loadlib.o loadlib.c
gcc -std=gnu99 -O2 -Wall -Wextra -DLUA_COMPAT_5_2 -DLUA_USE_LINUX    -c -o linit.o linit.c

This is because the file generated at aotus/external/lua-5.3.5/src/Makefile sets CC to gcc -std=gnu99 and sets the recipes for compiling the files, ignoring whatever was set in setup.make.

Found in conda-forge/siesta-feedstock#50

[zerothi]

Agreed, the lua compilation is a bit odd and requires some adaptation. However, it becomes a bit tedious when we need to upgrade the lua versions.

I am not fully sure how to compile aotus without the shipped with lua, that could be tested locally (to check work-arounds).

[zerothi]

aotus has since my last check moved to github (https://github.com/apes-suite/aotus/tree/branch/default). I'll have to update the code shipped in flook, and upgrade smeka to customize details a bit.
Sorry, but this is rather low priority for me as of now.

What can be done right now is cd into aotus/external/lua-5.3.5 and do make CC=... which will actually work.