From aef46581d91a912fc587677321f83f81ce6df527 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Mon, 22 Oct 2012 19:44:17 +0000
Subject: Allow building libc++ with any custom -std=xxx flag.  Note that using
 -std=gnu++98 will give a lot of warnings with clang, so please use -std=c++0x
 or higher, or use NO_WERROR.

MFC after:	1 week
---
 lib/libc++/Makefile | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib/libc++')

diff --git a/lib/libc++/Makefile b/lib/libc++/Makefile
index 6e95823..26877ee 100644
--- a/lib/libc++/Makefile
+++ b/lib/libc++/Makefile
@@ -53,7 +53,9 @@ cxxrt_${_S}:
 
 WARNS=		0
 CFLAGS+=	-I${HDRDIR} -I${LIBCXXRTDIR} -nostdlib -DLIBCXXRT
+.if !defined(CXXFLAGS) || ${CXXFLAGS:M-std=*}" == ""
 CXXFLAGS+=	-std=c++0x
+.endif
 
 DPADD=		${LIBCXXRT}
 LDADD=		-lcxxrt
-- 
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