[clang] [cmake] Support LLVM_DISTRIBUTION_COMPONENTS in stand-alone build

Differential Revision: https://reviews.llvm.org/D68412

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@373936 91177308-0d34-0410-b5e6-96231b3b80d8

CMakeLists.txt

@@ -114,6 +114,7 @@ if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
   include(TableGen)
   include(HandleLLVMOptions)
   include(VersionFromVCS)
+  include(LLVMDistributionSupport)
 
   set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
 
@@ -858,6 +859,10 @@ if (LLVM_ADD_NATIVE_VISUALIZERS_TO_SOLUTION)
 endif()
 add_subdirectory(utils/hmaptool)
 
+if(CLANG_BUILT_STANDALONE)
+  llvm_distribution_add_targets()
+endif()
+
 configure_file(
   ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake
   ${CLANG_BINARY_DIR}/include/clang/Config/config.h)