64 lines
2.7 KiB
CMake
64 lines
2.7 KiB
CMake
if(CMAKE_ObjectiveC_COMPILER_FORCED)
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# The compiler configuration was forced by the user.
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# Assume the user has configured all compiler information.
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set(CMAKE_ObjectiveC_COMPILER_WORKS TRUE)
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return()
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endif()
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include(CMakeTestCompilerCommon)
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# Remove any cached result from an older CMake version.
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# We now store this in CMakeCCompiler.cmake.
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unset(CMAKE_ObjectiveC_COMPILER_WORKS CACHE)
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# This file is used by EnableLanguage in cmGlobalGenerator to
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# determine that that selected C compiler can actually compile
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# and link the most basic of programs. If not, a fatal error
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# is set and cmake stops processing commands and will not generate
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# any makefiles or projects.
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if(NOT CMAKE_ObjectiveC_COMPILER_WORKS)
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PrintTestCompilerStatus("ObjectiveC" "")
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file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testObjectiveCCompiler.m
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"#ifdef __cplusplus\n"
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"# error \"The CMAKE_ObjectiveC_COMPILER is set to an ObjectiveC++ compiler\"\n"
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"#endif\n"
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"@interface Foo\n"
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"@end\n"
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"int main(int argc, char* argv[])\n"
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"{ (void)argv; return argc-1;}\n")
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try_compile(CMAKE_ObjectiveC_COMPILER_WORKS ${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testObjectiveCCompiler.m
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OUTPUT_VARIABLE __CMAKE_ObjectiveC_COMPILER_OUTPUT)
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# Move result from cache to normal variable.
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set(CMAKE_ObjectiveC_COMPILER_WORKS ${CMAKE_ObjectiveC_COMPILER_WORKS})
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unset(CMAKE_ObjectiveC_COMPILER_WORKS CACHE)
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set(ObjectiveC_TEST_WAS_RUN 1)
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endif()
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if(NOT CMAKE_ObjectiveC_COMPILER_WORKS)
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PrintTestCompilerStatus("ObjectiveC" " -- broken")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the ObjectiveC compiler works failed with "
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"the following output:\n${__CMAKE_ObjectiveC_COMPILER_OUTPUT}\n\n")
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message(FATAL_ERROR "The ObjectiveC compiler \"${CMAKE_ObjectiveC_COMPILER}\" "
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"is not able to compile a simple test program.\nIt fails "
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"with the following output:\n ${__CMAKE_ObjectiveC_COMPILER_OUTPUT}\n\n"
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"CMake will not be able to correctly generate this project.")
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else()
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if(ObjectiveC_TEST_WAS_RUN)
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PrintTestCompilerStatus("ObjectiveC" " -- works")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the ObjectiveC compiler works passed with "
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"the following output:\n${__CMAKE_ObjectiveC_COMPILER_OUTPUT}\n\n")
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endif()
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# Re-configure file
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configure_file(
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${CMAKE_CURRENT_LIST_DIR}/CMakeObjectiveCCompiler.cmake.in
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${CMAKE_PLATFORM_INFO_DIR}/CMakeObjectiveCCompiler.cmake
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@ONLY
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)
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include(${CMAKE_PLATFORM_INFO_DIR}/CMakeObjectiveCCompiler.cmake)
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endif()
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unset(__CMAKE_ObjectiveC_COMPILER_OUTPUT)
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