[libcxx] r302095 - CMake: Only add test/ subdirectory when it exists

[Duncan P. N. Exon Smith via cfe-commits]

Author: dexonsmith
Date: Wed May  3 18:33:54 2017
New Revision: 302095

URL: http://llvm.org/viewvc/llvm-project?rev=302095&view=rev
Log:
CMake: Only add test/ subdirectory when it exists

r296685 started adding the test/ subdirectory even when
LIBCXX_INCLUDE_TESTS=OFF.  This is great for testing libcxx standalone,
but it also breaks the build when the test/ subdirectory is removed
(and our submission system strips all test/ directories).

This patch updates the logic to check for test/ before adding it.

rdar://problem/31931366

Modified:
    libcxx/trunk/CMakeLists.txt

Modified: libcxx/trunk/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/CMakeLists.txt?rev=302095&r1=302094&r2=302095&view=diff
==============================================================================
--- libcxx/trunk/CMakeLists.txt (original)
+++ libcxx/trunk/CMakeLists.txt Wed May  3 18:33:54 2017
@@ -627,7 +627,12 @@ endif()
 # Create the lit.site.cfg file even when LIBCXX_INCLUDE_TESTS is OFF or
 # LLVM_FOUND is OFF. This allows users to run the tests manually using
 # LIT without requiring a full LLVM checkout.
-add_subdirectory(test)
+#
+# However, since some submission systems strip test/ subdirectories, check for
+# it before adding it.
+if(IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/test")
+  add_subdirectory(test)
+endif()
 if (LIBCXX_INCLUDE_TESTS)
   add_subdirectory(lib/abi)
 endif()