Don't dump llvm-config --cmakedir output if command fails.
This patch adjusts the out-of-tree CMake configuration so that
the stderr output is ignored when an old llvm-config is found
that doesn't support --cmakedir.
git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@291992 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 69d17a4..3ba4b65 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,8 @@
execute_process(
COMMAND ${LLVM_CONFIG_PATH} --cmakedir
RESULT_VARIABLE HAD_ERROR
- OUTPUT_VARIABLE CONFIG_OUTPUT)
+ OUTPUT_VARIABLE CONFIG_OUTPUT
+ ERROR_QUIET)
if(NOT HAD_ERROR)
string(STRIP "${CONFIG_OUTPUT}" LLVM_CMAKE_PATH)
else()
