[llvm] r247316 - [CMake] Add lto subdirectory explicitly.

[Chris Bieneman via llvm-commits]

Author: cbieneman
Date: Thu Sep 10 13:22:33 2015
New Revision: 247316

URL: http://llvm.org/viewvc/llvm-project?rev=247316&view=rev
Log:
[CMake] Add lto subdirectory explicitly.

This is required because ExternalProject_Add requires all targets specified in the DEPENDS argument must exist before calling ExternalProject_Add.

I have a follow-up patch to clang that enables using the just-built libLTO in bootstrap builds, so we need to be able to add the LTO target as a dependency in clang.

Modified:
    llvm/trunk/tools/CMakeLists.txt

Modified: llvm/trunk/tools/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/CMakeLists.txt?rev=247316&r1=247315&r2=247316&view=diff
==============================================================================
--- llvm/trunk/tools/CMakeLists.txt (original)
+++ llvm/trunk/tools/CMakeLists.txt Thu Sep 10 13:22:33 2015
@@ -30,6 +30,10 @@ if(CYGWIN OR NOT LLVM_ENABLE_PIC)
   set(LLVM_TOOL_LLVM_LTO_BUILD Off)
 endif()
 
+# Add LTO before clang, ExternalProject requires targets specified in DEPENDS
+# to exist before the call to ExternalProject_Add
+add_llvm_tool_subdirectory(lto)
+
 # Projects supported via LLVM_EXTERNAL_*_SOURCE_DIR need to be explicitly
 # specified.
 add_llvm_external_project(clang)