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| author | Damien Lespiau <damien.lespiau@intel.com> | 2009-06-14 00:13:02 +0100 |
|---|---|---|
| committer | Damien Lespiau <damien.lespiau@intel.com> | 2009-06-14 00:13:02 +0100 |
| commit | afd2e481e82bf8f07479f6090ffdf912387ca0d0 (patch) | |
| tree | 68a0b8605fcf0daea7283f602348878ccd491062 /build/autotools | |
| parent | 888d25912ca8615dd7068c6f5fd37d233e0768f7 (diff) | |
Introduce --enable-maintainer-cflags
Mimic Clutter with stricter warnings and the use of David Schleef's
AS_COMPILER_FLAG macro.
Fix a small shadow variable warning introducted by these flags.
Diffstat (limited to 'build/autotools')
| -rw-r--r-- | build/autotools/Makefile.am | 3 | ||||
| -rw-r--r-- | build/autotools/as-compiler-flag.m4 | 62 |
2 files changed, 64 insertions, 1 deletions
diff --git a/build/autotools/Makefile.am b/build/autotools/Makefile.am index 4b95cf3..9f980e9 100644 --- a/build/autotools/Makefile.am +++ b/build/autotools/Makefile.am @@ -1,6 +1,7 @@ -NULL = +NULL = # EXTRA_DIST = \ + as-compiler-flag.m4 \ dolt.m4 \ gtk-doc.m4 \ shave.in \ diff --git a/build/autotools/as-compiler-flag.m4 b/build/autotools/as-compiler-flag.m4 new file mode 100644 index 0000000..0f660cf --- /dev/null +++ b/build/autotools/as-compiler-flag.m4 @@ -0,0 +1,62 @@ +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 2005/12/15 23:35:19 ds 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 + m4_ifvaln([$2],[$2]) + true + else + m4_ifvaln([$3],[$3]) + true + fi + AC_MSG_RESULT([$flag_ok]) +]) + +dnl AS_COMPILER_FLAGS(VAR, FLAGS) +dnl Tries to compile with the given CFLAGS. + +AC_DEFUN([AS_COMPILER_FLAGS], +[ + list=$2 + flags_supported="" + flags_unsupported="" + AC_MSG_CHECKING([for supported compiler flags]) + for each in $list + do + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $each" + AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no]) + CFLAGS="$save_CFLAGS" + + if test "X$flag_ok" = Xyes ; then + flags_supported="$flags_supported $each" + else + flags_unsupported="$flags_unsupported $each" + fi + done + AC_MSG_RESULT([$flags_supported]) + if test "X$flags_unsupported" != X ; then + AC_MSG_WARN([unsupported compiler flags: $flags_unsupported]) + fi + $1="$$1 $flags_supported" +]) + |