Subdir-objects option for automake not working
After reading autotools mythbuster , I tried to write a small example of a non-recursive makefile using subdir objects to have my binary in my source directory.
Here is my organization :
/ autogen.sh configure.ac Makefile.am src/ main.c
autogen.sh :
#!/bin/sh
echo "Running aclocal..." ; aclocal $ACLOCAL_FLAGS || exit 1
echo "Running autoheader..." ; autoheader || exit 1
echo "Running autoconf..." ; autoconf || exit 1
echo "Running automake..." ; automake --add-missing --copy --gnu || exit 1
./configure "$@"
configure.ac :
AC_PREREQ([2.69])
AC_INIT([test], [0.0.1], [devel@hell.org])
AC_CONFIG_SRCDIR([src/main.c])
AC_CONFIG_HEADERS([config.h])
# Checks for programs.
AC_PROG_CC
AM_INIT_AUTOMAKE([1.14 foreign subdir-objects])
AM_MAINTAINER_MODE([enable])
AC_OUTPUT(Makefile)
Makefile.am :
MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.h.in configure depcomp install-sh missing compile
bin_PROGRAMS=toto
toto_SOURCES=src/main.c
I will compile everything with:
./autogen.sh make
I thought the toto binary would be created in the src directory using the subdir-objects options, but this option seems to have no effect and the toto binary is always generated in the root directory.
I also tried to pass this parameter to Makefile.am using AUTOMAKE_OPTIONS = subdir attributes, but with success.
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This is not what the subdir-objects option does. It places the intermediate build results, especially the object files *.o
, in the same directory as the sources from which they are generated. In particular, you should find it main.o
there and not in the top directory.
The end result of a build, on the other hand, should be what and where you specify in your Automake. If you want to toto
go into the directory too src/
, use this one Makefile.am
:
MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.h.in configure depcomp install-sh missing compile
bin_PROGRAMS=src/toto
src_toto_SOURCES=src/main.c
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