From 51713fbbfcaf819f176df8f3ce75f57880aeb690 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Mon, 16 Dec 2013 17:21:03 +0100
Subject: [PATCH] gcc-wrapper: Use -isystem instead of -I

This mostly matters for "gcc -MMD", which distinguishes between user
and system header files.
---
 pkgs/build-support/gcc-wrapper/setup-hook.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/gcc-wrapper/setup-hook.sh b/pkgs/build-support/gcc-wrapper/setup-hook.sh
index 513ab8053a7..298ade21d1f 100644
--- a/pkgs/build-support/gcc-wrapper/setup-hook.sh
+++ b/pkgs/build-support/gcc-wrapper/setup-hook.sh
@@ -1,6 +1,6 @@
 addCVars () {
     if test -d $1/include; then
-        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I$1/include"
+        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -isystem $1/include"
     fi
 
     if test -d $1/lib64; then