Use GCC's -Wlogical-op if possible

[Gerald Pfeifer]

I verified this does not cause any extra warnings with GCC 4.4, whereas
GCC 4.5 will become quite a bit more useful in that regard and thus help
spot any issues.

As with -Wtype-limits that I suggested last year, I pledge to keep close
an eye on this and to address any issues proactively as part of my nightly
test builds.

Gerald

ChangeLog:
Use GCC's -Wlogical-op if possible.

diff --git a/configure.ac b/configure.ac
index bef311e..3f7a657 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1385,8 +1385,9 @@ then
   WINE_TRY_CFLAGS([-fno-builtin],[AC_SUBST(BUILTINFLAG,"-fno-builtin")])
   WINE_TRY_CFLAGS([-fno-strict-aliasing])
   WINE_TRY_CFLAGS([-Wdeclaration-after-statement])
-  WINE_TRY_CFLAGS([-Wwrite-strings])
+  WINE_TRY_CFLAGS([-Wlogical-op])
   WINE_TRY_CFLAGS([-Wtype-limits])
+  WINE_TRY_CFLAGS([-Wwrite-strings])
 
   dnl Check for noisy string.h
   saved_CFLAGS="$CFLAGS"