From a9c68f979f623496068154c43f9cd0a556a716a6 Mon Sep 17 00:00:00 2001
From: Gabor Kutas <gabor.kutas@ericsson.com>
Date: Wed, 22 Aug 2018 17:02:58 +0200
Subject: [PATCH] Clang and llvm Revision/repoitory now can be specified as
 compilation flag.

Alongside the existing -DSVN_REVISION flag, (which specifies the clang revision
number) now there are three more flag that can be specified when there are
no revision info in the clang/llvm source directory.

-DSVN_REPOSITORY=<url> specifies clang repository.
-DLLVM_REVISION=<revno> specifies llvm revision.
-DLLVM_REPOSITORY=<url> specigies llvm repositiory.
---
 lib/Basic/CMakeLists.txt | 26 +++++++++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/lib/Basic/CMakeLists.txt b/lib/Basic/CMakeLists.txt
index d0c9b902f67e..0c59737f8dcf 100644
--- a/lib/Basic/CMakeLists.txt
+++ b/lib/Basic/CMakeLists.txt
@@ -36,11 +36,31 @@ else()
   # Not producing a VC revision include.
   set(version_inc)
 
-  # Being able to force-set the SVN revision in cases where it isn't available
+  # Being able to force-set the clang and llvm revision in cases where it isn't available
   # is useful for performance tracking, and matches compatibility from autoconf.
   if(SVN_REVISION)
-    set_source_files_properties(Version.cpp
-      PROPERTIES COMPILE_DEFINITIONS "SVN_REVISION=\"${SVN_REVISION}\"")
+	set_property(
+		SOURCE Version.cpp
+		APPEND
+        PROPERTY COMPILE_DEFINITIONS "SVN_REVISION=\"${SVN_REVISION}\"")
+  endif()
+  if(SVN_REPOSITORY)
+	set_property(
+		SOURCE Version.cpp
+		APPEND
+        PROPERTY COMPILE_DEFINITIONS "SVN_REPOSITORY=\"${SVN_REPOSITORY}\"")
+  endif()
+  if(LLVM_REVISION)
+	set_property(
+		SOURCE Version.cpp
+		APPEND
+        PROPERTY COMPILE_DEFINITIONS "LLVM_REVISION=\"${LLVM_REVISION}\"")
+  endif()
+  if(LLVM_REPOSITORY)
+	set_property(
+		SOURCE Version.cpp
+		APPEND
+        PROPERTY COMPILE_DEFINITIONS "LLVM_REPOSITORY=\"${LLVM_REPOSITORY}\"")
   endif()
 endif()