diff --git a/configure b/configure index 139a32c451a..fd09324bc34 100755 --- a/configure +++ b/configure @@ -14171,6 +14171,31 @@ fi $as_echo "$ac_cv_cflags__Wignored_qualifiers" >&6; } if test "x$ac_cv_cflags__Wignored_qualifiers" = xyes; then : EXTRACFLAGS="$EXTRACFLAGS -Wignored-qualifiers" +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports -Wshift-overflow=2" >&5 +$as_echo_n "checking whether the compiler supports -Wshift-overflow=2... " >&6; } +if ${ac_cv_cflags__Wshift_overflow_2+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_wine_try_cflags_saved=$CFLAGS +CFLAGS="$CFLAGS -Wshift-overflow=2" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(int argc, char **argv) { return 0; } +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_cflags__Wshift_overflow_2=yes +else + ac_cv_cflags__Wshift_overflow_2=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +CFLAGS=$ac_wine_try_cflags_saved +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cflags__Wshift_overflow_2" >&5 +$as_echo "$ac_cv_cflags__Wshift_overflow_2" >&6; } +if test "x$ac_cv_cflags__Wshift_overflow_2" = xyes; then : + EXTRACFLAGS="$EXTRACFLAGS -Wshift-overflow=2" 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; } diff --git a/configure.ac b/configure.ac index c4ba1a32dc3..3180407bfc7 100644 --- a/configure.ac +++ b/configure.ac @@ -1837,6 +1837,7 @@ then WINE_TRY_CFLAGS([-Wdeclaration-after-statement]) WINE_TRY_CFLAGS([-Wempty-body]) WINE_TRY_CFLAGS([-Wignored-qualifiers]) + WINE_TRY_CFLAGS([-Wshift-overflow=2]) WINE_TRY_CFLAGS([-Wstrict-prototypes]) WINE_TRY_CFLAGS([-Wtype-limits]) WINE_TRY_CFLAGS([-Wunused-but-set-parameter])