--- Makefile.in.orig	2017-01-21 22:51:08.000000000 +0900
+++ Makefile.in	2021-12-29 00:03:17.803354000 +0900
@@ -26268,6 +26268,8 @@
 	  --srcdir=$${topdir}/$$module_srcdir \
 	  $(HOST_CONFIGARGS) --build=${build_alias} --host=${host_alias} \
 	  --target=${target_alias}  \
+	  CFLAGS="$(CFLAGS) -fcommon" \
+	  CFLAGS_FOR_BUILD="$(CFLAGS_FOR_BUILD) -fcommon" \
 	  || exit 1
 @endif sim