[CMake] Tell libc++ that we're using compiler-rt on Apple platforms

Reviewers: beanz, arphaman, EricWF

Subscribers: dberris, mgorny, jkorous, dexonsmith, jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58921

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@355927 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/caches/Apple-stage2.cmake b/cmake/caches/Apple-stage2.cmake
index 996c64e62212aec0d41a7de1bc34ca4e413f4ddc..eb4827002011d79cc9c8464acab52f45291fac4a 100644 (file)
--- a/cmake/caches/Apple-stage2.cmake
+++ b/cmake/caches/Apple-stage2.cmake
@@ -38,6 +38,7 @@ set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "")
 set(LIBCXX_INSTALL_LIBRARY OFF CACHE BOOL "")
 set(LIBCXX_INSTALL_HEADERS ON CACHE BOOL "")
 set(LIBCXX_INCLUDE_TESTS OFF CACHE BOOL "")
+set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
 set(LLVM_LTO_VERSION_OFFSET 3000 CACHE STRING "")
 
 # Generating Xcode toolchains is useful for developers wanting to build and use