mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-07 06:09:52 -06:00
2edf0fc6d7
Modify most of the modules that ship with CMake to use the new
try_compile / try_run signatures added by commit aa9220d3a0
(try_compile: Add keyword-dispatched signature, 2022-09-02). This
improves debugging by each invocation using its own directory so that
the results of multiple invocations can be retained.
This does not cover any invocations which provide an entire project, as
that flavor of try_compile has not yet been updated.
102 lines
3.9 KiB
CMake
102 lines
3.9 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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if(CMAKE_C_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_C_COMPILER_WORKS TRUE)
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return()
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endif()
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include(CMakeTestCompilerCommon)
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# work around enforced code signing and / or missing executable target type
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set(__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE ${CMAKE_TRY_COMPILE_TARGET_TYPE})
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if(_CMAKE_FEATURE_DETECTION_TARGET_TYPE)
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set(CMAKE_TRY_COMPILE_TARGET_TYPE ${_CMAKE_FEATURE_DETECTION_TARGET_TYPE})
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endif()
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# Remove any cached result from an older CMake version.
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# We now store this in CMakeCCompiler.cmake.
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unset(CMAKE_C_COMPILER_WORKS CACHE)
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# Try to identify the ABI and configure it into CMakeCCompiler.cmake
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
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CMAKE_DETERMINE_COMPILER_ABI(C ${CMAKE_ROOT}/Modules/CMakeCCompilerABI.c)
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if(CMAKE_C_ABI_COMPILED)
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# The compiler worked so skip dedicated test below.
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set(CMAKE_C_COMPILER_WORKS TRUE)
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message(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER} - skipped")
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endif()
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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_C_COMPILER_WORKS)
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PrintTestCompilerStatus("C")
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__TestCompiler_setTryCompileTargetType()
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file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler.c
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"#ifdef __cplusplus\n"
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"# error \"The CMAKE_C_COMPILER is set to a C++ compiler\"\n"
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"#endif\n"
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"#if defined(__CLASSIC_C__)\n"
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"int main(argc, argv)\n"
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" int argc;\n"
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" char* argv[];\n"
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"#else\n"
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"int main(int argc, char* argv[])\n"
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"#endif\n"
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"{ (void)argv; return argc-1;}\n")
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# Clear result from normal variable.
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unset(CMAKE_C_COMPILER_WORKS)
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# Puts test result in cache variable.
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try_compile(CMAKE_C_COMPILER_WORKS
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SOURCES ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler.c
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OUTPUT_VARIABLE __CMAKE_C_COMPILER_OUTPUT)
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# Move result from cache to normal variable.
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set(CMAKE_C_COMPILER_WORKS ${CMAKE_C_COMPILER_WORKS})
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unset(CMAKE_C_COMPILER_WORKS CACHE)
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__TestCompiler_restoreTryCompileTargetType()
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if(NOT CMAKE_C_COMPILER_WORKS)
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PrintTestCompilerResult(CHECK_FAIL "broken")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Determining if the C compiler works failed with "
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"the following output:\n${__CMAKE_C_COMPILER_OUTPUT}\n\n")
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string(REPLACE "\n" "\n " _output "${__CMAKE_C_COMPILER_OUTPUT}")
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message(FATAL_ERROR "The C compiler\n \"${CMAKE_C_COMPILER}\"\n"
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"is not able to compile a simple test program.\nIt fails "
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"with the following output:\n ${_output}\n\n"
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"CMake will not be able to correctly generate this project.")
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endif()
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PrintTestCompilerResult(CHECK_PASS "works")
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Determining if the C compiler works passed with "
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"the following output:\n${__CMAKE_C_COMPILER_OUTPUT}\n\n")
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endif()
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# Try to identify the compiler features
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include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
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CMAKE_DETERMINE_COMPILE_FEATURES(C)
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# Re-configure to save learned information.
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configure_file(
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${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in
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${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake
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@ONLY
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)
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include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake)
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if(CMAKE_C_SIZEOF_DATA_PTR)
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foreach(f ${CMAKE_C_ABI_FILES})
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include(${f})
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endforeach()
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unset(CMAKE_C_ABI_FILES)
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endif()
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set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE})
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unset(__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE)
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unset(__CMAKE_C_COMPILER_OUTPUT)
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