From 8e9c4e83fa02642d6c8671e9fe0108f417c9268f Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Tue, 5 Sep 2006 07:58:26 +0000
Subject: 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)
---
 source4/lib/replace/cc_features.m4 | 42 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 source4/lib/replace/cc_features.m4

(limited to 'source4/lib/replace/cc_features.m4')

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
+])
+
-- 
cgit