From aa90fd221531368063a5d713699e4b56531c7813 Mon Sep 17 00:00:00 2001
From: jca <jca@openbsd.org>
Date: Fri, 24 Aug 2018 15:47:33 +0000
Subject: [PATCH] Fix on powerpc and probably hppa (needs 8 bytes atomics)

Most of the work done by kirby@, ok kirby@ tb@
---
 devel/protobuf/Makefile | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/devel/protobuf/Makefile b/devel/protobuf/Makefile
index ad11987ffe5..f27bfe7a6e8 100644
--- a/devel/protobuf/Makefile
+++ b/devel/protobuf/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.22 2018/08/09 16:45:21 tb Exp $
+# $OpenBSD: Makefile,v 1.23 2018/08/24 15:47:33 jca Exp $
 
 COMMENT =		c++ protocol buffers
 
@@ -33,3 +33,11 @@ CONFIGURE_STYLE =	gnu
 CONFIGURE_ARGS +=	--with-zlib
 
 .include <bsd.port.mk>
+
+# avoid undefined reference to __atomic_fetch_add_8
+.if ${CHOSEN_COMPILER} == "ports-gcc"
+. if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "hppa"
+CONFIGURE_ENV +=	LIBS="-latomic"
+WANTLIB +=		atomic
+. endif
+.endif