From e9f7b76732095c61c879ad41ec4803a860e7615f Mon Sep 17 00:00:00 2001
From: Logan Chien <loganchien@google.com>
Date: Sat, 4 Aug 2018 00:21:33 +0800
Subject: [PATCH] Fix Foundation build error with --install-prefix

This commit fixes a header-not-found build error when Foundation is
built with --install-prefix other than "/usr".
---
 build.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.py b/build.py
index 23964d7d38..47321f2e8e 100755
--- a/build.py
+++ b/build.py
@@ -65,7 +65,7 @@
 ])
 
 swift_cflags += [
-	'-I${BUILD_DIR}/Foundation/usr/lib/swift',
+	'-I${BUILD_DIR}/Foundation/${PREFIX}/lib/swift',
 ]
 
 if "XCTEST_BUILD_DIR" in Configuration.current.variables: