Index: cfe/trunk/cmake/caches/Fuchsia-stage2.cmake
===================================================================
--- cfe/trunk/cmake/caches/Fuchsia-stage2.cmake
+++ cfe/trunk/cmake/caches/Fuchsia-stage2.cmake
@@ -19,6 +19,10 @@
   set(CLANG_DEFAULT_LINKER lld CACHE STRING "")
 endif()
 
+if(APPLE)
+  set(LLDB_CODESIGN_IDENTITY "" CACHE STRING "")
+endif()
+
 set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "")
 set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -gline-tables-only -DNDEBUG" CACHE STRING "")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -gline-tables-only -DNDEBUG" CACHE STRING "")
Index: cfe/trunk/cmake/caches/Fuchsia.cmake
===================================================================
--- cfe/trunk/cmake/caches/Fuchsia.cmake
+++ cfe/trunk/cmake/caches/Fuchsia.cmake
@@ -19,6 +19,12 @@
   set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
 endif()
 
+if(APPLE)
+  set(COMPILER_RT_ENABLE_IOS OFF CACHE BOOL "")
+  set(COMPILER_RT_ENABLE_TVOS OFF CACHE BOOL "")
+  set(COMPILER_RT_ENABLE_WATCHOS OFF CACHE BOOL "")
+endif()
+
 set(CLANG_BOOTSTRAP_TARGETS
   check-all
   check-llvm