cmake/gcc.cmake

   1 function(gcc_get_version var)
   2     cmake_parse_arguments(args
   3         ""
   4         "TRIPLET;PROGRAM_NAME;PROGRAM_PATH"
   5         ""
   6         ${ARGN}
   7     )
   8     set(prog "gcc")
   9     if(args_TRIPLET)
  10         set(prog "${args_TRIPLET}-${prog}")
  11     endif()
  12     if(args_PROGRAM_NAME)
  13         set(${args_PROGRAM_NAME} ${prog} PARENT_SCOPE)
  14     endif()
  15
  16     find_program(gcc ${prog})
  17     if (NOT gcc)
  18         set(${var} OFF PARENT_SCOPE)
  19     endif()
  20
  21     if(args_PROGRAM_PATH)
  22         set(${args_PROGRAM_PATH} ${gcc} PARENT_SCOPE)
  23     endif()
  24
  25     execute_process(COMMAND "${gcc}" -dumpversion
  26         OUTPUT_STRIP_TRAILING_WHITESPACE
  27         OUTPUT_VARIABLE version)
  28
  29     if("" STREQUAL version)
  30         set(${var} OFF PARENT_SCOPE)
  31     else()
  32         set(${var} ${version} PARENT_SCOPE)
  33     endif()
  34 endfunction()