From 4ecaedc771f47e099609c69ed2782c64fc653d05 Mon Sep 17 00:00:00 2001
From: Gabor Greif <ggreif@gmail.com>
Date: Fri, 3 Aug 2012 13:31:24 +0000
Subject: [PATCH] allow 'make CPPFLAGS=<something>' work again

this makes this hack a bit more bearable
for poor souls who need to pass custom
preprocessor flags to the build process

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161240 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/TargetInfo/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Target/PowerPC/TargetInfo/Makefile b/lib/Target/PowerPC/TargetInfo/Makefile
index a101aa4a449..2d0560d275f 100644
--- a/lib/Target/PowerPC/TargetInfo/Makefile
+++ b/lib/Target/PowerPC/TargetInfo/Makefile
@@ -10,6 +10,6 @@ LEVEL = ../../../..
 LIBRARYNAME = LLVMPowerPCInfo
 
 # Hack: we need to include 'main' target directory to grab private headers
-CPPFLAGS = -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
+override CPPFLAGS += -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
 
 include $(LEVEL)/Makefile.common