llvm/cmake/modules/LLVMCheckLinkerFlag.cmake

   1 include(CheckLinkerFlag OPTIONAL)
   2
   3 if (COMMAND check_linker_flag)
   4   macro(llvm_check_linker_flag)
   5     check_linker_flag(${ARGN})
   6   endmacro()
   7 else()
   8   include(CheckCXXCompilerFlag)
   9   include(CMakePushCheckState)
  10
  11   # cmake builtin compatible, except we assume lang is CXX
  12   function(llvm_check_linker_flag lang flag out_var)
  13     cmake_push_check_state()
  14     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${flag}")
  15     check_cxx_compiler_flag("" ${out_var})
  16     cmake_pop_check_state()
  17   endfunction()
  18 endif()