From 1a29bd50ff13cf8d9956fddc2cd256e71dab653b Mon Sep 17 00:00:00 2001
From: David Chisnall <theraven@FreeBSD.org>
Date: Fri, 6 Sep 2013 20:42:14 +0000
Subject: [PATCH] Only set -Wno-c++11-extensions if we're building with clang,
 so bootstrapping clang with gcc doesn't fail.

---
 share/mk/bsd.own.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/share/mk/bsd.own.mk b/share/mk/bsd.own.mk
index 48cce5cdd6c..39cf72e362c 100644
--- a/share/mk/bsd.own.mk
+++ b/share/mk/bsd.own.mk
@@ -431,7 +431,10 @@ __DEFAULT_NO_OPTIONS+=GCC GNUCXX
 # suppression when building the base system to catch bugs in our headers.
 # Eventually we'll want to start building the base system C++ code as C++11,
 # but not yet.
+_COMPVERSION!= ${CC} --version
+.if ${_COMPVERSION:Mclang}
 CXXFLAGS+=	-Wno-c++11-extensions
+.endif
 .else
 # If clang is not cc, then build gcc by default
 __DEFAULT_NO_OPTIONS+=CLANG_IS_CC