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| author | H. Peter Anvin <hpa@zytor.com> | 2007-04-15 22:45:25 +0000 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2007-04-15 22:45:25 +0000 |
| commit | 1ed0387476138f83ba173d161a54b779353d11aa (patch) | |
| tree | 400c94f942c8ee12d59aefa1ed1243883f8ce550 /aclocal.m4 | |
| parent | 3faf938f79c0ded2d72483a149956eba8169b2d2 (diff) | |
| download | nasm-1ed0387476138f83ba173d161a54b779353d11aa.tar.gz nasm-1ed0387476138f83ba173d161a54b779353d11aa.tar.bz2 nasm-1ed0387476138f83ba173d161a54b779353d11aa.zip | |
Cleaner way to add gcc options
We can actually test for the options being accepted, rather than try
to test for gcc; this handles differences between gcc versions as well
as compilers with a similar command line set.
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 new file mode 100644 index 0000000..e25d13d --- /dev/null +++ b/aclocal.m4 @@ -0,0 +1,15 @@ +dnl -------------------------------------------------------------------------- +dnl PA_ADD_CFLAGS() +dnl +dnl Attempt to add the given option to CFLAGS, if it doesn't break compilation +dnl -------------------------------------------------------------------------- +AC_DEFUN(PA_ADD_CFLAGS, +[AC_MSG_CHECKING([if $CC accepts $1]) + pa_add_cflags__old_cflags="$CFLAGS" + CFLAGS="$CFLAGS $1" + AC_TRY_LINK([#include <stdio.h>], + [printf("Hello, World!\n");], + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no]) + CFLAGS="$pa_add_cflags__old_cflags")]) + |