[llvm] r287256 - [CMake] Error when LTO and lld are enabled on Darwin

[Petr Hosek via llvm-commits]

Author: phosek
Date: Thu Nov 17 14:22:49 2016
New Revision: 287256

URL: http://llvm.org/viewvc/llvm-project?rev=287256&view=rev
Log:
[CMake] Error when LTO and lld are enabled on Darwin

lld on Darwin does not currently support LTO.

Differential Revision: https://reviews.llvm.org/D26715

Modified:
    llvm/trunk/cmake/modules/HandleLLVMOptions.cmake

Modified: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/HandleLLVMOptions.cmake?rev=287256&r1=287255&r2=287256&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake (original)
+++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake Thu Nov 17 14:22:49 2016
@@ -96,6 +96,9 @@ set(LTDL_SHLIB_EXT ${CMAKE_SHARED_LIBRAR
 set(LLVM_PLUGIN_EXT ${CMAKE_SHARED_LIBRARY_SUFFIX})
 
 if(APPLE)
+  if(LLVM_ENABLE_LLD AND LLVM_ENABLE_LTO)
+    message(FATAL_ERROR "lld does not support LTO on Darwin")
+  endif()
   # Darwin-specific linker flags for loadable modules.
   set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,-flat_namespace -Wl,-undefined -Wl,suppress")
 endif()