diff --git a/gcc/fixinc/Makefile.in b/gcc/fixinc/Makefile.in
index 8976c783e72..9182337c76a 100644
--- a/gcc/fixinc/Makefile.in
+++ b/gcc/fixinc/Makefile.in
@@ -82,7 +82,7 @@ fixincl: $(OBJ)
 
 gnu-regex.o: gnu-regex.c
 	-$(CC) $(CFLAGS) $(FIXINC_DEFS) $(INCLUDES) -DREGEX_MALLOC \
-		-DSTDC_HEADERS=1 -c $(srcdir)/gnu-regex.c
+		-c $(srcdir)/gnu-regex.c
 
 fixincl.o : fixincl.x fixincl.c
 server.o : server.c server.h
diff --git a/gcc/system.h b/gcc/system.h
index 3ec73a6cab1..22b48ab723c 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -249,6 +249,9 @@ extern int errno;
 #ifndef WEXITSTATUS
 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
 #endif
+#ifndef WSTOPSIG
+#define WSTOPSIG WEXITSTATUS
+#endif