Index: head/devel/blame/Makefile
===================================================================
--- head/devel/blame/Makefile	(revision 546689)
+++ head/devel/blame/Makefile	(revision 546690)
@@ -1,17 +1,20 @@
 # Created by: John Hein <jhein@symmetricom.com>
 # $FreeBSD$
 
 PORTNAME=	blame
 PORTVERSION=	1.3.1
 CATEGORIES=	devel
 MASTER_SITES=	ftp://ftp.invisible-island.net/rcs-blame/
 
 MAINTAINER=	jhein@symmetricom.com
 COMMENT=	Display last modification for each line in an RCS file
 
 USE_CSTD=	gnu89
 GNU_CONFIGURE=	yes
 PLIST_FILES=	bin/blame \
 		man/man1/blame.1.gz
 
+# Fix build with clang11
+CFLAGS+=	-fcommon
+
 .include <bsd.port.mk>