From ae3128f26882e9e5ead8cf574d995e631abcaa65 Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Thu, 29 Dec 2016 22:42:45 +0000
Subject: [PATCH] Fix build using the buildit script

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@290727 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/buildit | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/buildit b/lib/buildit
index 6451a9bfa..6c28f7525 100755
--- a/lib/buildit
+++ b/lib/buildit
@@ -41,7 +41,7 @@ then
 fi
 
 EXTRA_FLAGS="-nostdinc++ -std=${CXX_LANG} -fstrict-aliasing -Wall -Wextra -Wshadow -Wconversion \
-             -Wstrict-aliasing=2 -Wstrict-overflow=4 "
+             -Wstrict-aliasing=2 -Wstrict-overflow=4 -D_LIBCPP_BUILDING_LIBRARY "
 
 case $TRIPLE in
   *-apple-*)