commit f65456f3c0b07de9db5221c3883263026cfcc0a0
author Michael Gottesman <mgottesman@apple.com> Tue Aug 20 07:41:18 2013 +0000
committer Michael Gottesman <mgottesman@apple.com> Tue Aug 20 07:41:18 2013 +0000
tree ae254e9f1bfb86a1311731496cdd96c426dbaed1
parent 42f98732d6f14584522304cff570b7ee24660c54

[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

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e6863b2..22b12f3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -337,3 +337,6 @@
 
 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." "")

tools/driver/CMakeLists.txt

diff --git a/tools/driver/CMakeLists.txt b/tools/driver/CMakeLists.txt
index 89778d6..0a45b58 100644
--- a/tools/driver/CMakeLists.txt
+++ b/tools/driver/CMakeLists.txt
@@ -116,3 +116,8 @@
   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()
+