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| author | Guillaume Desmottes <guillaume.desmottes@collabora.co.uk> | 2009-05-25 19:14:34 +0800 |
|---|---|---|
| committer | Guillaume Desmottes <guillaume.desmottes@collabora.co.uk> | 2009-10-23 19:03:34 +0800 |
| commit | be027f7002d11677cf32601acd1370c45f2d2c57 (patch) | |
| tree | 18359884256c970e7bbc45c812cbb9637292c5ec /m4 | |
| parent | 601e416af2bafa2b890b045139c9d50ed5aa9c65 (diff) | |
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add m4/as-compiler-flag.m4
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/as-compiler-flag.m4 | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/m4/as-compiler-flag.m4 b/m4/as-compiler-flag.m4 new file mode 100644 index 000000000..605708a5a --- /dev/null +++ b/m4/as-compiler-flag.m4 @@ -0,0 +1,33 @@ +dnl as-compiler-flag.m4 0.1.0 + +dnl autostars m4 macro for detection of compiler flags + +dnl David Schleef <ds@schleef.org> + +dnl $Id: as-compiler-flag.m4,v 1.1 2005/06/18 18:02:46 burgerman Exp $ + +dnl AS_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED]) +dnl Tries to compile with the given CFLAGS. +dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags, +dnl and ACTION-IF-NOT-ACCEPTED otherwise. + +AC_DEFUN([AS_COMPILER_FLAG], +[ + AC_MSG_CHECKING([to see if compiler understands $1]) + + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $1" + + AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no]) + CFLAGS="$save_CFLAGS" + + if test "X$flag_ok" = Xyes ; then + $2 + true + else + $3 + true + fi + AC_MSG_RESULT([$flag_ok]) +]) + |