| enable_language(C) |
| enable_language(CXX) |
| |
| # Warning options after the first entry are ignored for compatibility. |
| set(CMAKE_REQUIRED_FLAGS |
| "-DCHECK_REQUIRED_FLAGS -Drequired_flag_function=memcpy -Drequired_flag_library=memcpy -Drequired_flag_type=int" |
| "-Wseen-by-cmake") |
| set(CMAKE_REQUIRED_INCLUDES "${CMAKE_CURRENT_LIST_DIR}") |
| |
| include(CheckFunctionExists) |
| include(CheckIncludeFile) |
| include(CheckIncludeFileCXX) |
| include(CheckIncludeFiles) |
| include(CheckLibraryExists) |
| include(CheckPrototypeDefinition) |
| include(CheckTypeSize) |
| |
| function(run_tests) |
| if(${ARGC} GREATER 1) |
| set(${ARGN}) |
| endif() |
| |
| check_function_exists(required_flag_function CHECK_FUNCTION_EXISTS_RESULT) |
| check_include_file(CheckRequiredFlags.h CHECK_INCLUDE_FILE_RESULT) |
| check_include_file_cxx(CheckRequiredFlags.h CHECK_INCLUDE_FILE_CXX_RESULT) |
| check_include_files("stddef.h;CheckRequiredFlags.h" CHECK_INCLUDE_FILES_RESULT) |
| check_library_exists("" required_flag_library "" CHECK_LIBRARY_EXISTS_RESULT) |
| check_prototype_definition( |
| required_flag_prototype |
| "int required_flag_prototype(int value)" |
| "value" |
| "CheckRequiredFlags.h" |
| CHECK_PROTOTYPE_DEFINITION_RESULT |
| ) |
| check_type_size(required_flag_type CHECK_TYPE_SIZE_RESULT) |
| |
| foreach(result IN ITEMS |
| CHECK_FUNCTION_EXISTS_RESULT |
| CHECK_INCLUDE_FILE_RESULT |
| CHECK_INCLUDE_FILE_CXX_RESULT |
| CHECK_INCLUDE_FILES_RESULT |
| CHECK_LIBRARY_EXISTS_RESULT |
| CHECK_PROTOTYPE_DEFINITION_RESULT |
| CHECK_TYPE_SIZE_RESULT |
| ) |
| if(NOT ${result}) |
| message(SEND_ERROR "${result} did not honor CMAKE_REQUIRED_FLAGS") |
| endif() |
| unset(CACHE{${result}}) |
| endforeach() |
| unset(CACHE{HAVE_CHECK_TYPE_SIZE_RESULT}) |
| endfunction() |
| |
| run_tests() |
| run_tests(CMAKE_REQUIRED_LINK_OPTIONS REQUIRED-NOTFOUND) |
| run_tests(CMAKE_REQUIRED_LIBRARIES REQUIRED-NOTFOUND) |
