181 lines
6.6 KiB
CMake
181 lines
6.6 KiB
CMake
#=============================================================================
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# Copyright 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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configure_file(${FortranCInterface_SOURCE_DIR}/Input.cmake.in
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${FortranCInterface_BINARY_DIR}/Input.cmake @ONLY)
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# Detect the Fortran/C interface on the first run or when the
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# configuration changes.
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if(${FortranCInterface_BINARY_DIR}/Input.cmake
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IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
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OR ${FortranCInterface_SOURCE_DIR}/Output.cmake.in
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IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
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OR ${FortranCInterface_SOURCE_DIR}/CMakeLists.txt
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IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
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OR ${CMAKE_CURRENT_LIST_FILE}
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IS_NEWER_THAN ${FortranCInterface_BINARY_DIR}/Output.cmake
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)
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message(STATUS "Detecting Fortran/C Interface")
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else()
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return()
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endif()
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# Invalidate verification results.
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unset(FortranCInterface_VERIFIED_C CACHE)
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unset(FortranCInterface_VERIFIED_CXX CACHE)
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set(_result)
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# Build a sample project which reports symbols.
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try_compile(FortranCInterface_COMPILED
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${FortranCInterface_BINARY_DIR}
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${FortranCInterface_SOURCE_DIR}
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FortranCInterface
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OUTPUT_VARIABLE FortranCInterface_OUTPUT)
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set(FortranCInterface_COMPILED ${FortranCInterface_COMPILED})
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unset(FortranCInterface_COMPILED CACHE)
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# Locate the sample project executable.
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if(FortranCInterface_COMPILED)
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find_program(FortranCInterface_EXE
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NAMES FortranCInterface
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PATHS ${FortranCInterface_BINARY_DIR} ${FortranCInterface_BINARY_DIR}/Debug
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NO_DEFAULT_PATH
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)
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set(FortranCInterface_EXE ${FortranCInterface_EXE})
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unset(FortranCInterface_EXE CACHE)
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else()
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set(_result "Failed to compile")
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set(FortranCInterface_EXE)
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file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Fortran/C interface test project failed with the following output:\n"
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"${FortranCInterface_OUTPUT}\n")
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endif()
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# Load symbols from INFO:symbol[] strings in the executable.
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set(FortranCInterface_SYMBOLS)
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if(FortranCInterface_EXE)
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file(STRINGS "${FortranCInterface_EXE}" _info_strings
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LIMIT_COUNT 8 REGEX "INFO:[^[]*\\[")
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foreach(info ${_info_strings})
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if("${info}" MATCHES ".*INFO:symbol\\[([^]]*)\\].*")
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string(REGEX REPLACE ".*INFO:symbol\\[([^]]*)\\].*" "\\1" symbol "${info}")
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list(APPEND FortranCInterface_SYMBOLS ${symbol})
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endif()
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endforeach()
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elseif(NOT _result)
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set(_result "Failed to load sample executable")
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endif()
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set(_case_mysub "LOWER")
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set(_case_my_sub "LOWER")
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set(_case_MYSUB "UPPER")
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set(_case_MY_SUB "UPPER")
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set(_global_regex "^(_*)(mysub|MYSUB)([_$]*)$")
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set(_global__regex "^(_*)(my_sub|MY_SUB)([_$]*)$")
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set(_module_regex "^(_*)(mymodule|MYMODULE)([A-Za-z_$]*)(mysub|MYSUB)([_$]*)$")
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set(_module__regex "^(_*)(my_module|MY_MODULE)([A-Za-z_$]*)(my_sub|MY_SUB)([_$]*)$")
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# Parse the symbol names.
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foreach(symbol ${FortranCInterface_SYMBOLS})
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foreach(form "" "_")
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# Look for global symbols.
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string(REGEX REPLACE "${_global_${form}regex}"
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"\\1;\\2;\\3" pieces "${symbol}")
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list(LENGTH pieces len)
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if(len EQUAL 3)
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set(FortranCInterface_GLOBAL_${form}SYMBOL "${symbol}")
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list(GET pieces 0 FortranCInterface_GLOBAL_${form}PREFIX)
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list(GET pieces 1 name)
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list(GET pieces 2 FortranCInterface_GLOBAL_${form}SUFFIX)
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set(FortranCInterface_GLOBAL_${form}CASE "${_case_${name}}")
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endif()
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# Look for module symbols.
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string(REGEX REPLACE "${_module_${form}regex}"
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"\\1;\\2;\\3;\\4;\\5" pieces "${symbol}")
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list(LENGTH pieces len)
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if(len EQUAL 5)
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set(FortranCInterface_MODULE_${form}SYMBOL "${symbol}")
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list(GET pieces 0 FortranCInterface_MODULE_${form}PREFIX)
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list(GET pieces 1 module)
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list(GET pieces 2 FortranCInterface_MODULE_${form}MIDDLE)
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list(GET pieces 3 name)
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list(GET pieces 4 FortranCInterface_MODULE_${form}SUFFIX)
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set(FortranCInterface_MODULE_${form}CASE "${_case_${name}}")
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endif()
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endforeach()
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endforeach()
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# Construct mangling macro definitions.
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set(_name_LOWER "name")
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set(_name_UPPER "NAME")
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foreach(form "" "_")
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if(FortranCInterface_GLOBAL_${form}SYMBOL)
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if(FortranCInterface_GLOBAL_${form}PREFIX)
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set(_prefix "${FortranCInterface_GLOBAL_${form}PREFIX}##")
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else()
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set(_prefix "")
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endif()
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if(FortranCInterface_GLOBAL_${form}SUFFIX)
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set(_suffix "##${FortranCInterface_GLOBAL_${form}SUFFIX}")
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else()
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set(_suffix "")
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endif()
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set(_name "${_name_${FortranCInterface_GLOBAL_${form}CASE}}")
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set(FortranCInterface_GLOBAL${form}_MACRO
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"(name,NAME) ${_prefix}${_name}${_suffix}")
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endif()
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if(FortranCInterface_MODULE_${form}SYMBOL)
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if(FortranCInterface_MODULE_${form}PREFIX)
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set(_prefix "${FortranCInterface_MODULE_${form}PREFIX}##")
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else()
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set(_prefix "")
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endif()
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if(FortranCInterface_MODULE_${form}SUFFIX)
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set(_suffix "##${FortranCInterface_MODULE_${form}SUFFIX}")
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else()
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set(_suffix "")
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endif()
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set(_name "${_name_${FortranCInterface_MODULE_${form}CASE}}")
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set(_middle "##${FortranCInterface_MODULE_${form}MIDDLE}##")
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set(FortranCInterface_MODULE${form}_MACRO
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"(mod_name,name, mod_NAME,NAME) ${_prefix}mod_${_name}${_middle}${_name}${_suffix}")
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endif()
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endforeach()
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# Summarize what is available.
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foreach(scope GLOBAL MODULE)
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if(FortranCInterface_${scope}_SYMBOL AND
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FortranCInterface_${scope}__SYMBOL)
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set(FortranCInterface_${scope}_FOUND 1)
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else()
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set(FortranCInterface_${scope}_FOUND 0)
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endif()
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endforeach()
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# Record the detection results.
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configure_file(${FortranCInterface_SOURCE_DIR}/Output.cmake.in
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${FortranCInterface_BINARY_DIR}/Output.cmake @ONLY)
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file(APPEND ${FortranCInterface_BINARY_DIR}/Output.cmake "\n")
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# Report the results.
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if(FortranCInterface_GLOBAL_FOUND)
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if(FortranCInterface_MODULE_FOUND)
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set(_result "Found GLOBAL and MODULE mangling")
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else(FortranCInterface_MODULE_FOUND)
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set(_result "Found GLOBAL but not MODULE mangling")
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endif()
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elseif(NOT _result)
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set(_result "Failed to recognize symbols")
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endif()
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message(STATUS "Detecting Fortran/C Interface - ${_result}")
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