| |
| # This file is used by EnableLanguage in cmGlobalGenerator to |
| # determine that that selected C++ compiler can actually compile |
| # and link the most basic of programs. If not, a fatal error |
| # is set and cmake stops processing commands and will not generate |
| # any makefiles or projects. |
| IF(NOT CMAKE_CXX_COMPILER_WORKS) |
| MESSAGE(STATUS "Check for working CXX compiler: ${CMAKE_CXX_COMPILER}") |
| FILE(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCXXCompiler.cxx |
| "#ifndef __cplusplus\n" |
| "# error \"The CMAKE_CXX_COMPILER is set to a C compiler\"\n" |
| "#endif\n" |
| "int main(){return 0;}\n") |
| TRY_COMPILE(CMAKE_CXX_COMPILER_WORKS ${CMAKE_BINARY_DIR} |
| ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCXXCompiler.cxx |
| OUTPUT_VARIABLE OUTPUT) |
| SET(CXX_TEST_WAS_RUN 1) |
| ENDIF(NOT CMAKE_CXX_COMPILER_WORKS) |
| |
| IF(NOT CMAKE_CXX_COMPILER_WORKS) |
| MESSAGE(STATUS "Check for working CXX compiler: ${CMAKE_CXX_COMPILER} -- broken") |
| FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log |
| "Determining if the CXX compiler works failed with " |
| "the following output:\n${OUTPUT}\n\n") |
| MESSAGE(FATAL_ERROR "The C++ compiler \"${CMAKE_CXX_COMPILER}\" " |
| "is not able to compile a simple test program.\nIt fails " |
| "with the following output:\n ${OUTPUT}\n\n" |
| "CMake will not be able to correctly generate this project.") |
| ELSE(NOT CMAKE_CXX_COMPILER_WORKS) |
| IF(CXX_TEST_WAS_RUN) |
| MESSAGE(STATUS "Check for working CXX compiler: ${CMAKE_CXX_COMPILER} -- works") |
| FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log |
| "Determining if the CXX compiler works passed with " |
| "the following output:\n${OUTPUT}\n\n") |
| ENDIF(CXX_TEST_WAS_RUN) |
| SET(CMAKE_CXX_COMPILER_WORKS 1 CACHE INTERNAL "") |
| ENDIF(NOT CMAKE_CXX_COMPILER_WORKS) |
