From efca0f6a9185e9e8d2b744b2ce6c340d5a662461 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Thu, 24 Jul 2003 00:09:51 +0000
Subject: [PATCH] Disable gcc strict aliasing optimization for now.

---
 configure    | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 configure.ac |  9 +++++++++
 2 files changed, 61 insertions(+)

diff --git a/configure b/configure
index f8f699114f3..d3bb9532256 100755
--- a/configure
+++ b/configure
@@ -10973,6 +10973,58 @@ echo "${ECHO_T}$ac_cv_c_gcc_stack_boundary" >&6
     EXTRACFLAGS="$EXTRACFLAGS -mpreferred-stack-boundary=2"
   fi
 
+    echo "$as_me:$LINENO: checking for gcc -fno-strict-aliasing support" >&5
+echo $ECHO_N "checking for gcc -fno-strict-aliasing support... $ECHO_C" >&6
+if test "${ac_cv_c_gcc_no_strict_aliasing+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_wine_try_cflags_saved=$CFLAGS
+CFLAGS="$CFLAGS -fno-strict-aliasing"
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_c_gcc_no_strict_aliasing="yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_c_gcc_no_strict_aliasing="no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_gcc_no_strict_aliasing" >&5
+echo "${ECHO_T}$ac_cv_c_gcc_no_strict_aliasing" >&6
+  if test "$ac_cv_c_gcc_no_strict_aliasing" = "yes"
+  then
+    EXTRACFLAGS="$EXTRACFLAGS -fno-strict-aliasing"
+  fi
+
     echo "$as_me:$LINENO: checking for gcc -gstabs+ support" >&5
 echo $ECHO_N "checking for gcc -gstabs+ support... $ECHO_C" >&6
 if test "${ac_cv_c_gcc_gstabs+set}" = set; then
diff --git a/configure.ac b/configure.ac
index c358c4a01fb..8f718b3e887 100644
--- a/configure.ac
+++ b/configure.ac
@@ -695,6 +695,15 @@ int main(void) {
     EXTRACFLAGS="$EXTRACFLAGS -mpreferred-stack-boundary=2"
   fi
 
+  dnl Check for -fno-strict-aliasing
+  AC_CACHE_CHECK([for gcc -fno-strict-aliasing support], ac_cv_c_gcc_no_strict_aliasing,
+      [WINE_TRY_CFLAGS([-fno-strict-aliasing],
+                      ac_cv_c_gcc_no_strict_aliasing="yes",ac_cv_c_gcc_no_strict_aliasing="no")])
+  if test "$ac_cv_c_gcc_no_strict_aliasing" = "yes"
+  then
+    EXTRACFLAGS="$EXTRACFLAGS -fno-strict-aliasing"
+  fi
+
   dnl Check for -gstabs+ option
   AC_CACHE_CHECK([for gcc -gstabs+ support], ac_cv_c_gcc_gstabs,
       [WINE_TRY_CFLAGS([-gstabs+],ac_cv_c_gcc_gstabs="yes", ac_cv_c_gcc_gstabs="no")])