From: Michael Gottesman <mgottesman@apple.com>
Date: Tue, 20 Aug 2013 07:41:18 +0000 (+0000)
Subject: [autotools->cmake] Added support for building clang with an order file.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f65456f3c0b07de9db5221c3883263026cfcc0a0;p=clang

[autotools->cmake] Added support for building clang with an order file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188763 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e6863b25dc..22b12f302b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -337,3 +337,6 @@ endif()
 
 set(BUG_REPORT_URL "http://llvm.org/bugs/" CACHE STRING
   "Default URL where bug reports are to be submitted.")
+
+option(CLANG_ORDER_FILE
+  "Order file to use when compiling clang in order to improve startup time." "")
diff --git a/tools/driver/CMakeLists.txt b/tools/driver/CMakeLists.txt
index 89778d6fc3..0a45b58c44 100644
--- a/tools/driver/CMakeLists.txt
+++ b/tools/driver/CMakeLists.txt
@@ -116,3 +116,8 @@ if (APPLE)
   set(TOOL_INFO_VERSION)
   set(TOOL_INFO_BUILD_VERSION)
 endif()
+
+if(CLANG_ORDER_FILE)
+  target_link_libraries(clang "-Wl,-order_file,${CLANG_ORDER_FILE}")
+endif()
+