[llvm] r283188 - [cmake] Use separate doctrees to prevent races between Sphinx instances

[Michal Gorny via llvm-commits]

Author: mgorny
Date: Tue Oct  4 01:09:14 2016
New Revision: 283188

URL: http://llvm.org/viewvc/llvm-project?rev=283188&view=rev
Log:
[cmake] Use separate doctrees to prevent races between Sphinx instances

Use separate doctrees between different Sphinx builders in order to
prevent race condition issues due to multiple Sphinx instances accessing
the same doctree cache in parallel.

Bug: https://llvm.org/bugs/show_bug.cgi?id=23781

Differential Revision: https://reviews.llvm.org/D23755

Modified:
    llvm/trunk/cmake/modules/AddSphinxTarget.cmake

Modified: llvm/trunk/cmake/modules/AddSphinxTarget.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/AddSphinxTarget.cmake?rev=283188&r1=283187&r2=283188&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/AddSphinxTarget.cmake (original)
+++ llvm/trunk/cmake/modules/AddSphinxTarget.cmake Tue Oct  4 01:09:14 2016
@@ -6,7 +6,7 @@
 # ``project`` should be the project name
 function (add_sphinx_target builder project)
   set(SPHINX_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/${builder}")
-  set(SPHINX_DOC_TREE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees")
+  set(SPHINX_DOC_TREE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees-${builder}")
   set(SPHINX_TARGET_NAME docs-${project}-${builder})
 
   if (SPHINX_WARNINGS_AS_ERRORS)