Index: cmake/caches/Fuchsia-stage2.cmake
===================================================================
--- cmake/caches/Fuchsia-stage2.cmake
+++ 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: cmake/caches/Fuchsia.cmake
===================================================================
--- cmake/caches/Fuchsia.cmake
+++ cmake/caches/Fuchsia.cmake
@@ -1,6 +1,8 @@
 # This file sets up a CMakeCache for a Fuchsia toolchain build.
 
-set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
+if(NOT APPLE)
+  set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
+endif()
 
 set(PACKAGE_VENDOR Fuchsia CACHE STRING "")