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After configuring CMakeFiles/CMake<lang>Compiler.cmake in the build tree the second time (to store ABI information), include it immediately. This allows any logic and settings in the compiler information files to be used without duplicating it in CMakeDetermineCompilerABI.cmake. The change in commit "Use Fortran ABI detection results conservatively" (2010-05-05) needs this to use the same logic to set CMAKE_SIZEOF_VOID_P during first and later runs of CMake.
81 lines
3.8 KiB
CMake
81 lines
3.8 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 "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
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ENDIF(ABI_SIZEOF_DPTR)
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IF(ABI_NAME)
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SET(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE)
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ENDIF(ABI_NAME)
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# Parse implicit linker information for this language, if available.
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SET(implicit_dirs "")
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SET(implicit_libs "")
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IF(CMAKE_${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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