[CMake] Use find_package(LLVM) instead of LLVMConfig
This addresses an issues introduced in r362047.
Differential Revision: https://reviews.llvm.org/D62640
git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@362065 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 16bfb9a..b51922a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@
${CMAKE_MODULE_PATH}
)
-if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR LIBUNWIND_STANDALONE_BUILD)
project(libunwind)
# Rely on llvm-config.