From 65e8419086ac33afb7e8e30c4cccd9feff818b49 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 5 Oct 2012 00:22:46 +0000
Subject: [PATCH] Use -object_path_lto when linking executables if building
 Apple style.

llvm-svn: 165282
---
 llvm/Makefile.rules | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/llvm/Makefile.rules b/llvm/Makefile.rules
index 030955b..a52bb80 100644
--- a/llvm/Makefile.rules
+++ b/llvm/Makefile.rules
@@ -631,19 +631,23 @@ endif
 
 # Adjust linker flags for building an executable
 ifneq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
-ifneq ($(HOST_OS), Darwin)
-ifdef TOOLNAME
-  LD.Flags += $(RPATH) -Wl,'$$ORIGIN/../lib'
-  ifdef EXAMPLE_TOOL
-    LD.Flags += $(RPATH) -Wl,$(ExmplDir) $(DynamicFlag)
-  else
-    LD.Flags += $(RPATH) -Wl,$(ToolDir) $(DynamicFlag)
+  ifneq ($(HOST_OS), Darwin)
+    ifdef TOOLNAME
+      LD.Flags += $(RPATH) -Wl,'$$ORIGIN/../lib'
+      ifdef EXAMPLE_TOOL
+        LD.Flags += $(RPATH) -Wl,$(ExmplDir) $(DynamicFlag)
+      else
+        LD.Flags += $(RPATH) -Wl,$(ToolDir) $(DynamicFlag)
+    endif
   endif
-endif
 else
-ifneq ($(DARWIN_MAJVERS),4)
-  LD.Flags += $(RPATH) -Wl,@executable_path/../lib
-endif
+  ifneq ($(DARWIN_MAJVERS),4)
+    LD.Flags += $(RPATH) -Wl,@executable_path/../lib
+  endif
+  ifeq ($(RC_BUILDIT),YES)
+    TempFile := $(shell mktemp ${OBJROOT}/llvm-lto.XXXXXX)
+    LD.Flags += -Wl,-object_path_lto -Wl,$(TempFile)
+  endif
 endif
 endif
 
-- 
2.7.4