Gerald Pfeifer : configure: Use the -Wignored-qualifiers compiler option if available.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2505dfcc57fd3bc3b3b1d33d9940a5d790303059
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=2505dfcc57fd3bc3b3b1d33d9940a5d790303059

Author: Gerald Pfeifer <gerald at pfeifer.com>
Date:   Mon Jan 23 21:58:35 2012 +0100

configure: Use the -Wignored-qualifiers compiler option if available.

---

 configure    |   25 +++++++++++++++++++++++++
 configure.ac |    1 +
 2 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/configure b/configure
index fa17bcc..ef5fb31 100755
--- a/configure
+++ b/configure
@@ -12062,6 +12062,31 @@ $as_echo "$ac_cv_cflags__Wempty_body" >&6; }
 if test $ac_cv_cflags__Wempty_body = yes; then :
   EXTRACFLAGS="$EXTRACFLAGS -Wempty-body"
 fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -Wignored-qualifiers" >&5
+$as_echo_n "checking whether the compiler supports -Wignored-qualifiers... " >&6; }
+if ${ac_cv_cflags__Wignored_qualifiers+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_wine_try_cflags_saved=$CFLAGS
+CFLAGS="$CFLAGS -Wignored-qualifiers"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(int argc, char **argv) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_cflags__Wignored_qualifiers=yes
+else
+  ac_cv_cflags__Wignored_qualifiers=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cflags__Wignored_qualifiers" >&5
+$as_echo "$ac_cv_cflags__Wignored_qualifiers" >&6; }
+if test $ac_cv_cflags__Wignored_qualifiers = yes; then :
+  EXTRACFLAGS="$EXTRACFLAGS -Wignored-qualifiers"
+fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -Wstrict-prototypes" >&5
 $as_echo_n "checking whether the compiler supports -Wstrict-prototypes... " >&6; }
 if ${ac_cv_cflags__Wstrict_prototypes+:} false; then :
diff --git a/configure.ac b/configure.ac
index 5810111..9a4848b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1705,6 +1705,7 @@ then
   WINE_TRY_CFLAGS([-fno-strict-aliasing])
   WINE_TRY_CFLAGS([-Wdeclaration-after-statement])
   WINE_TRY_CFLAGS([-Wempty-body])
+  WINE_TRY_CFLAGS([-Wignored-qualifiers])
   WINE_TRY_CFLAGS([-Wstrict-prototypes])
   WINE_TRY_CFLAGS([-Wtype-limits])
   WINE_TRY_CFLAGS([-Wunused-but-set-parameter])