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-rw-r--r--source3/aclocal.m472
-rw-r--r--source3/configure.in4
2 files changed, 76 insertions, 0 deletions
diff --git a/source3/aclocal.m4 b/source3/aclocal.m4
index b0f1f6c44d..54b1a56040 100644
--- a/source3/aclocal.m4
+++ b/source3/aclocal.m4
@@ -796,3 +796,75 @@ int main(void)
])
])
+############################################
+# Check if the compiler handles c99 struct initialization, and if not try -AC99 and -c99 flags
+# Usage: LIBREPLACE_C99_STRUCT_INIT(success-action,failure-action)
+# changes CFLAGS to add -AC99 or -c99 if needed
+AC_DEFUN([LIBREPLACE_C99_STRUCT_INIT],
+[
+saved_CFLAGS="$CFLAGS";
+c99_init=no
+if test x"$c99_init" = x"no"; then
+ AC_MSG_CHECKING(for C99 designated initializers)
+ CFLAGS="$saved_CFLAGS";
+ AC_TRY_COMPILE([#include <stdio.h>],
+ [ struct foo {int x;char y;};
+ struct foo bar = { .y = 'X', .x = 1 };
+ ],
+ [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)])
+fi
+if test x"$c99_init" = x"no"; then
+ AC_MSG_CHECKING(for C99 designated initializers with -AC99)
+ CFLAGS="$saved_CFLAGS -AC99";
+ AC_TRY_COMPILE([#include <stdio.h>],
+ [ struct foo {int x;char y;};
+ struct foo bar = { .y = 'X', .x = 1 };
+ ],
+ [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)])
+fi
+if test x"$c99_init" = x"no"; then
+ AC_MSG_CHECKING(for C99 designated initializers with -qlanglvl=extc99)
+ CFLAGS="$saved_CFLAGS -qlanglvl=extc99";
+ AC_TRY_COMPILE([#include <stdio.h>],
+ [ struct foo {int x;char y;};
+ struct foo bar = { .y = 'X', .x = 1 };
+ ],
+ [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)])
+fi
+if test x"$c99_init" = x"no"; then
+ AC_MSG_CHECKING(for C99 designated initializers with -qlanglvl=stdc99)
+ CFLAGS="$saved_CFLAGS -qlanglvl=stdc99";
+ AC_TRY_COMPILE([#include <stdio.h>],
+ [ struct foo {int x;char y;};
+ struct foo bar = { .y = 'X', .x = 1 };
+ ],
+ [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)])
+fi
+if test x"$c99_init" = x"no"; then
+ AC_MSG_CHECKING(for C99 designated initializers with -c99)
+ CFLAGS="$saved_CFLAGS -c99"
+ AC_TRY_COMPILE([#include <stdio.h>],
+ [ struct foo {int x;char y;};
+ struct foo bar = { .y = 'X', .x = 1 };
+ ],
+ [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)])
+fi
+
+if test "`uname`" = "HP-UX"; then
+ if test "$ac_cv_c_compiler_gnu" = no; then
+ # special override for broken HP-UX compiler - I can't find a way to test
+ # this properly (its a compiler bug)
+ CFLAGS="$CFLAGS -AC99";
+ c99_init=yes;
+ fi
+fi
+
+if test x"$c99_init" = x"yes"; then
+ saved_CFLAGS=""
+ $1
+else
+ CFLAGS="$saved_CFLAGS"
+ saved_CFLAGS=""
+ $2
+fi
+])
diff --git a/source3/configure.in b/source3/configure.in
index 5bea72e224..1c5fa609d9 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -540,6 +540,10 @@ if test x"$samba_cv_volatile" = x"yes"; then
AC_DEFINE(HAVE_VOLATILE, 1, [Whether the C compiler understands volatile])
fi
+dnl Figure out the flags to support named structure initializers
+
+LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])])
+
UNAME_S=`(uname -s) 2>/dev/null` || UNAME_S="unknown"
AC_MSG_CHECKING(uname -s)
AC_MSG_RESULT(${UNAME_S})