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| author | Lorry <lorry@roadtrain.codethink.co.uk> | 2012-07-18 20:35:05 +0100 |
|---|---|---|
| committer | Lorry <lorry@roadtrain.codethink.co.uk> | 2012-07-18 20:35:05 +0100 |
| commit | aceb1f30497619786f1827e4c65992b890a07410 (patch) | |
| tree | ce33ac9d0d076a8ec4f993e614cf71a4d5daa7e7 /M4/add_cflags.m4 | |
| download | libsndfile-aceb1f30497619786f1827e4c65992b890a07410.tar.gz | |
Tarball conversion
Diffstat (limited to 'M4/add_cflags.m4')
| -rw-r--r-- | M4/add_cflags.m4 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/M4/add_cflags.m4 b/M4/add_cflags.m4 new file mode 100644 index 0000000..55a326c --- /dev/null +++ b/M4/add_cflags.m4 @@ -0,0 +1,18 @@ +dnl @synopsis MN_ADD_CFLAGS +dnl +dnl Add the given option to CFLAGS, if it doesn't break the compiler + +AC_DEFUN([MN_ADD_CFLAGS], +[AC_MSG_CHECKING([if $CC accepts $1]) + ac_add_cflags__old_cflags="$CFLAGS" + CFLAGS="$1" + AC_TRY_LINK([ + #include <stdio.h> + ], + [puts("Hello, World!"); return 0;], + AC_MSG_RESULT([yes]) + CFLAGS="$ac_add_cflags__old_cflags $1", + AC_MSG_RESULT([no]) + CFLAGS="$ac_add_cflags__old_cflags" + ) +])# MN_ADD_CFLAGS |