From 52eac768a17b34a3f136484a87042dd17ae7dc21 Mon Sep 17 00:00:00 2001
From: Jonas Hahnfeld <Hahnfeld@itc.rwth-aachen.de>
Date: Thu, 15 Sep 2016 06:14:13 +0000
Subject: [PATCH] [CMake] Fixing lit for runtimes directory

Copy variable LLVM_BUILD_MAIN_SRC_DIR from LLVMConfig.cmake to
LLVM_MAIN_SRC_DIR as it is named for in-tree builds. This ensures that
add_lit_target() can reliably find llvm-lit which is not necessarily
in the PATH.

Differential Revision: https://reviews.llvm.org/D24503

llvm-svn: 281585
---
 runtimes/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/runtimes/CMakeLists.txt b/runtimes/CMakeLists.txt
index e43ea74e00f..2974726a7f7 100644
--- a/runtimes/CMakeLists.txt
+++ b/runtimes/CMakeLists.txt
@@ -58,6 +58,9 @@ if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})
   set(LLVM_LIBRARY_OUTPUT_INTDIR ${LLVM_LIBRARY_DIR})
   set(LLVM_RUNTIME_OUTPUT_INTDIR ${LLVM_TOOLS_BINARY_DIR})
 
+  # This variable makes sure that e.g. llvm-lit is found.
+  set(LLVM_MAIN_SRC_DIR ${LLVM_BUILD_MAIN_SRC_DIR})
+
   foreach(entry ${runtimes})
     get_filename_component(projName ${entry} NAME)