r260341 - [CMake] Pass LLVM_EXTERNAL_*_SOURCE_DIR variables to subsequent stages

[Chris Bieneman via cfe-commits]

Author: cbieneman
Date: Tue Feb  9 19:09:59 2016
New Revision: 260341

URL: http://llvm.org/viewvc/llvm-project?rev=260341&view=rev
Log:
[CMake] Pass LLVM_EXTERNAL_*_SOURCE_DIR variables to subsequent stages

For multi-stage builds we need to pass any overridden source directory variables. Without passing these the subsequent stages won't find the project sources.

Modified:
    cfe/trunk/CMakeLists.txt

Modified: cfe/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CMakeLists.txt?rev=260341&r1=260340&r2=260341&view=diff
==============================================================================
--- cfe/trunk/CMakeLists.txt (original)
+++ cfe/trunk/CMakeLists.txt Tue Feb  9 19:09:59 2016
@@ -735,6 +735,10 @@ if (CLANG_ENABLE_BOOTSTRAP)
       list(APPEND PASSTHROUGH_VARIABLES
         -D${varName}=${value})
     endif()
+    if(${variableName} AND variableName MATCHES "LLVM_EXTERNAL_.*_SOURCE_DIR")
+      list(APPEND PASSTHROUGH_VARIABLES
+        -D${variableName}=${${variableName}})
+    endif()
   endforeach()
 
   # Populate the passthrough variables