Jacek Caban : configure: Enable -Wabsolute-value on cross compiler.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5de95badd210181ae61d15dd21b25ccfd77b06d0
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5de95badd210181ae61d15dd21b25ccfd77b06d0

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Wed May 27 23:56:10 2020 +0200

configure: Enable -Wabsolute-value on cross compiler.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 configure    | 31 +++++++++++++++++++++++++++++++
 configure.ac |  1 +
 2 files changed, 32 insertions(+)

diff --git a/configure b/configure
index ac0bdc7d79..bb98f99f9f 100755
--- a/configure
+++ b/configure
@@ -10417,6 +10417,37 @@ $as_echo "$ac_cv_crosscflags__Wlogical_op" >&6; }
 if test "x$ac_cv_crosscflags__Wlogical_op" = xyes; then :
   EXTRACROSSCFLAGS="$EXTRACROSSCFLAGS -Wlogical-op"
 fi
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the cross-compiler supports -Wabsolute-value" >&5
+$as_echo_n "checking whether the cross-compiler supports -Wabsolute-value... " >&6; }
+if ${ac_cv_crosscflags__Wabsolute_value+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_wine_try_cflags_saved=$CFLAGS
+ac_wine_try_cflags_saved_cc=$CC
+ac_wine_try_cflags_saved_exeext=$ac_exeext
+CFLAGS="$CFLAGS $EXTRACROSSCFLAGS -nostartfiles -nodefaultlibs -Wabsolute-value"
+CC="$CROSSCC"
+ac_exeext=".exe"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int __cdecl mainCRTStartup(void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_crosscflags__Wabsolute_value=yes
+else
+  ac_cv_crosscflags__Wabsolute_value=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+CFLAGS=$ac_wine_try_cflags_saved
+CC=$ac_wine_try_cflags_saved_cc
+ac_exeext=$ac_wine_try_cflags_saved_exeext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_crosscflags__Wabsolute_value" >&5
+$as_echo "$ac_cv_crosscflags__Wabsolute_value" >&6; }
+if test "x$ac_cv_crosscflags__Wabsolute_value" = xyes; then :
+  EXTRACROSSCFLAGS="$EXTRACROSSCFLAGS -Wabsolute-value"
+fi
 
         case $host_cpu in
           *i[3456789]86*) { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the cross-compiler supports -fno-omit-frame-pointer" >&5
diff --git a/configure.ac b/configure.ac
index 33a8a9a288..e3d63ed750 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1090,6 +1090,7 @@ then
         WINE_TRY_CROSSCFLAGS([-Wwrite-strings])
         WINE_TRY_CROSSCFLAGS([-Wpointer-arith])
         WINE_TRY_CROSSCFLAGS([-Wlogical-op])
+        WINE_TRY_CROSSCFLAGS([-Wabsolute-value])
 
         case $host_cpu in
           *i[[3456789]]86*) WINE_TRY_CROSSCFLAGS([-fno-omit-frame-pointer]) ;;