83 lines
3.9 KiB
CMake
83 lines
3.9 KiB
CMake
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#=============================================================================
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# Copyright 2008-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distributed this file outside of CMake, substitute the full
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# License text for the above reference.)
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# Function to compile a source file to identify the compiler ABI.
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# This is used internally by CMake and should not be included by user
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# code.
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INCLUDE(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
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FUNCTION(CMAKE_DETERMINE_COMPILER_ABI lang src)
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IF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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MESSAGE(STATUS "Detecting ${lang} compiler ABI info")
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# Compile the ABI identification source.
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SET(BIN "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeDetermineCompilerABI_${lang}.bin")
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TRY_COMPILE(CMAKE_DETERMINE_${lang}_ABI_COMPILED
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${CMAKE_BINARY_DIR} ${src}
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CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS=${CMAKE_${lang}_VERBOSE_FLAG}"
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"-DCMAKE_${lang}_STANDARD_LIBRARIES="
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OUTPUT_VARIABLE OUTPUT
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COPY_FILE "${BIN}"
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)
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# Load the resulting information strings.
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IF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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MESSAGE(STATUS "Detecting ${lang} compiler ABI info - done")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Detecting ${lang} compiler ABI info compiled with the following output:\n${OUTPUT}\n\n")
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FILE(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 2 REGEX "INFO:[^[]*\\[")
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FOREACH(info ${ABI_STRINGS})
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IF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*")
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STRING(REGEX REPLACE ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*" "\\1" ABI_SIZEOF_DPTR "${info}")
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ENDIF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*")
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IF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*")
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STRING(REGEX REPLACE ".*INFO:abi\\[([^]]*)\\].*" "\\1" ABI_NAME "${info}")
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ENDIF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*")
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ENDFOREACH(info)
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IF(ABI_SIZEOF_DPTR)
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SET(CMAKE_${lang}_SIZEOF_DATA_PTR "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
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SET(CMAKE_SIZEOF_VOID_P "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
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ENDIF(ABI_SIZEOF_DPTR)
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IF(ABI_NAME)
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SET(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE)
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SET(CMAKE_INTERNAL_PLATFORM_ABI "${ABI_NAME}" PARENT_SCOPE)
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ENDIF(ABI_NAME)
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# Parse implicit linker information for this language, if available.
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SET(implicit_dirs "")
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SET(implicit_libs "")
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IF(CMAKE_${lang}_VERBOSE_FLAG
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# Implicit link information cannot be used explicitly for
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# multiple OS X architectures, so we skip it.
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AND NOT "${CMAKE_OSX_ARCHITECTURES}" MATCHES ";"
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# Skip this with Xcode for now.
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AND NOT "${CMAKE_GENERATOR}" MATCHES Xcode)
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CMAKE_PARSE_IMPLICIT_LINK_INFO("${OUTPUT}" implicit_libs implicit_dirs log)
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Parsed ${lang} implicit link information from above output:\n${log}\n\n")
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ENDIF()
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SET(CMAKE_${lang}_IMPLICIT_LINK_LIBRARIES "${implicit_libs}" PARENT_SCOPE)
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SET(CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES "${implicit_dirs}" PARENT_SCOPE)
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ELSE(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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MESSAGE(STATUS "Detecting ${lang} compiler ABI info - failed")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Detecting ${lang} compiler ABI info failed to compile with the following output:\n${OUTPUT}\n\n")
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ENDIF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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ENDIF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ABI)
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