From 14b2b67cd7d5e439c4bc5c8051f68a5fbb683480 Mon Sep 17 00:00:00 2001
From: Vitaly Buka <vitalybuka@google.com>
Date: Wed, 28 Sep 2022 18:53:39 -0700
Subject: [PATCH] Fix locating of COMPILER_RT_LIBCXX_PATH

COMPILER_RT_LIBCXX_PATH is required for msan unittests.
---
 compiler-rt/CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/compiler-rt/CMakeLists.txt b/compiler-rt/CMakeLists.txt
index fc7607e..7c33797 100644
--- a/compiler-rt/CMakeLists.txt
+++ b/compiler-rt/CMakeLists.txt
@@ -672,7 +672,8 @@ if(COMPILER_RT_USE_LIBCXX)
     # Don't use libcxx if LLVM_ENABLE_PROJECTS does not enable it.
     set(COMPILER_RT_LIBCXX_PATH ${LLVM_EXTERNAL_LIBCXX_SOURCE_DIR})
     set(COMPILER_RT_LIBCXXABI_PATH ${LLVM_EXTERNAL_LIBCXXABI_SOURCE_DIR})
-  else()
+  endif()
+  if(NOT IS_DIRECTORY ${COMPILER_RT_LIBCXX_PATH})
     foreach(path IN ITEMS ${LLVM_MAIN_SRC_DIR}/projects/libcxx
                           ${LLVM_MAIN_SRC_DIR}/runtimes/libcxx
                           ${LLVM_MAIN_SRC_DIR}/../libcxx
-- 
2.7.4