[PATCH] D49672: [CMake] Honor LLVM_EXTERNAL_<proj>_SOURCE_DIR

[David Greene via Phabricator via llvm-commits]

greened updated this revision to Diff 180510.
greened added a comment.

Updated to use `CACHE_STRING` as suggested.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D49672/new/

https://reviews.llvm.org/D49672

Files:
  CMakeLists.txt


Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -117,7 +117,7 @@
   endif()
   string(TOUPPER "${proj}" upper_proj)
   STRING(REGEX REPLACE "-" "_" upper_proj ${upper_proj})
-  set(LLVM_EXTERNAL_${upper_proj}_SOURCE_DIR   "${CMAKE_CURRENT_SOURCE_DIR}/../${proj}")
+  set(LLVM_EXTERNAL_${upper_proj}_SOURCE_DIR   "${CMAKE_CURRENT_SOURCE_DIR}/../${proj}" CACHE STRING "")
   # There is a widely spread opinion that clang-tools-extra should be merged
   # into clang. The following simulates it by always enabling clang-tools-extra
   # when enabling clang.


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