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| author | Andrew Tridgell <tridge@samba.org> | 2006-09-05 07:58:26 +0000 |
|---|---|---|
| committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 14:17:10 -0500 |
| commit | 8e9c4e83fa02642d6c8671e9fe0108f417c9268f (patch) | |
| tree | 8769c3e4e0463ae1d027f242454b3304db01b84b /source4/lib/replace/cc_features.m4 | |
| parent | 10d58661be5588e8877c696abf67a932d5a5373c (diff) | |
| download | samba-8e9c4e83fa02642d6c8671e9fe0108f417c9268f.tar.gz samba-8e9c4e83fa02642d6c8671e9fe0108f417c9268f.tar.bz2 samba-8e9c4e83fa02642d6c8671e9fe0108f417c9268f.zip | |
r18067: some tweaks for irix and hpux
this checks for -AC99 or -c99 to get C99 structure init to work. It's
based on a similar macro metze did for Samba4.
the double sinclude() is weird, but I can't see any other way to use a
common config.m4 between libreplace and all the projects that use it
(This used to be commit 8d80024976bc508d73b42b4cf12315fe8f7a6322)
Diffstat (limited to 'source4/lib/replace/cc_features.m4')
| -rw-r--r-- | source4/lib/replace/cc_features.m4 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/source4/lib/replace/cc_features.m4 b/source4/lib/replace/cc_features.m4 new file mode 100644 index 0000000000..a109dfb414 --- /dev/null +++ b/source4/lib/replace/cc_features.m4 @@ -0,0 +1,42 @@ +dnl C99 compiler check +dnl ------------------------------------------------------- +dnl Copyright (C) Stefan (metze) Metzmacher 2004,2005 +dnl Released under the GNU GPL +dnl ------------------------------------------------------- +dnl +dnl adapted for libreplace by Andrew Tridgell + +############################################ +# Check if the compiler handles c99 struct initialization, and if not try -AC99 and -c99 flags +# Usage: LIBREPLACE_CC_SUPPORTS_C99_STRUCT_INIT(success-action,failure-action) +# changes CFLAGS to add -AC99 or -c99 if needed + +AC_DEFUN([LIBREPLACE_C99_STRUCT_INIT], +[ +AC_MSG_CHECKING(for C99 designated initializers) +saved_CFLAGS="$CFLAGS"; +AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes; $1], [c99_init=no; AC_MSG_RESULT(no)]) +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers with -AC99) + CFLAGS="$saved_CFLAGS -AC99"; + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes; $1],[AC_MSG_RESULT(no)]) +fi +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers with -c99) + CFLAGS="$saved_CFLAGS -c99" + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); $1],[AC_MSG_RESULT(no);CFLAGS="$saved_CFLAGS"; $2]) +fi +]) + |