| |
| # 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_C_COMPILER_WORKS) |
| MESSAGE(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER}") |
| FILE(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler.c |
| "#ifdef __cplusplus\n" |
| "# error \"The CMAKE_C_COMPILER is set to a C++ compiler\"\n" |
| "#endif\n" |
| "#if defined(__CLASSIC_C__)\n" |
| "int main(argc, argv)\n" |
| " int argc;\n" |
| " char* argv[];\n" |
| "#else\n" |
| "int main(int argc, char* argv[])\n" |
| "#endif\n" |
| "{ return argc-1;}\n") |
| TRY_COMPILE(CMAKE_C_COMPILER_WORKS ${CMAKE_BINARY_DIR} |
| ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler.c |
| OUTPUT_VARIABLE OUTPUT) |
| SET(C_TEST_WAS_RUN 1) |
| ENDIF(NOT CMAKE_C_COMPILER_WORKS) |
| |
| IF(NOT CMAKE_C_COMPILER_WORKS) |
| MESSAGE(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER} -- broken") |
| FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log |
| "Determining if the C compiler works failed with " |
| "the following output:\n${OUTPUT}\n\n") |
| MESSAGE(FATAL_ERROR "The C compiler \"${CMAKE_C_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_C_COMPILER_WORKS) |
| IF(C_TEST_WAS_RUN) |
| MESSAGE(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER} -- works") |
| FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log |
| "Determining if the C compiler works passed with " |
| "the following output:\n${OUTPUT}\n\n") |
| ENDIF(C_TEST_WAS_RUN) |
| SET(CMAKE_C_COMPILER_WORKS 1 CACHE INTERNAL "") |
| |
| IF(CMAKE_C_COMPILER_FORCED) |
| # The compiler configuration was forced by the user. |
| # Assume the user has configured all compiler information. |
| ELSE(CMAKE_C_COMPILER_FORCED) |
| # Try to identify the ABI and configure it into CMakeCCompiler.cmake |
| INCLUDE(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake) |
| CMAKE_DETERMINE_COMPILER_ABI(C ${CMAKE_ROOT}/Modules/CMakeCCompilerABI.c) |
| CONFIGURE_FILE( |
| ${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in |
| ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeCCompiler.cmake |
| @ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0 |
| ) |
| ENDIF(CMAKE_C_COMPILER_FORCED) |
| ENDIF(NOT CMAKE_C_COMPILER_WORKS) |
| |
