Make it possible to run the test suite when built as part of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@191930 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d5352fa..20d2ab0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,6 +26,10 @@
build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there."
)
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+ set(LIBCXX_BUILT_STANDALONE 1)
+endif()
+
#===============================================================================
# Setup CMake Options
#===============================================================================