122 lines
4.5 KiB
CMake
122 lines
4.5 KiB
CMake
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#=============================================================================
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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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# (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 parse implicit linker options.
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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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function(CMAKE_PARSE_IMPLICIT_LINK_INFO text lib_var dir_var log_var)
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set(implicit_libs_tmp "")
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set(implicit_dirs_tmp)
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set(log "")
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# Parse implicit linker arguments.
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set(linker "CMAKE_LINKER-NOTFOUND")
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if(CMAKE_LINKER)
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get_filename_component(linker ${CMAKE_LINKER} NAME)
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endif()
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# Construct a regex to match linker lines. It must match both the
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# whole line and just the command (argv[0]).
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set(linker_regex "^( *|.*[/\\])(${linker}|ld|collect2)[^/\\]*( |$)")
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set(log "${log} link line regex: [${linker_regex}]\n")
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string(REGEX REPLACE "\r?\n" ";" output_lines "${text}")
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foreach(line IN LISTS output_lines)
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set(cmd)
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if("${line}" MATCHES "${linker_regex}")
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if(UNIX)
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separate_arguments(args UNIX_COMMAND "${line}")
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else()
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separate_arguments(args WINDOWS_COMMAND "${line}")
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endif()
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list(GET args 0 cmd)
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endif()
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if("${cmd}" MATCHES "${linker_regex}")
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set(log "${log} link line: [${line}]\n")
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string(REGEX REPLACE ";-([LYz]);" ";-\\1" args "${args}")
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foreach(arg IN LISTS args)
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if("${arg}" MATCHES "^-L(.:)?[/\\]")
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# Unix search path.
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string(REGEX REPLACE "^-L" "" dir "${arg}")
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list(APPEND implicit_dirs_tmp ${dir})
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set(log "${log} arg [${arg}] ==> dir [${dir}]\n")
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elseif("${arg}" MATCHES "^-l[^:]")
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# Unix library.
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string(REGEX REPLACE "^-l" "" lib "${arg}")
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list(APPEND implicit_libs_tmp ${lib})
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set(log "${log} arg [${arg}] ==> lib [${lib}]\n")
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elseif("${arg}" MATCHES "^(.:)?[/\\].*\\.a$")
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# Unix library full path.
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list(APPEND implicit_libs_tmp ${arg})
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set(log "${log} arg [${arg}] ==> lib [${arg}]\n")
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elseif("${arg}" MATCHES "^-Y(P,)?")
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# Sun search path.
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string(REGEX REPLACE "^-Y(P,)?" "" dirs "${arg}")
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string(REPLACE ":" ";" dirs "${dirs}")
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list(APPEND implicit_dirs_tmp ${dirs})
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set(log "${log} arg [${arg}] ==> dirs [${dirs}]\n")
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elseif("${arg}" MATCHES "^-l:")
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# HP named library.
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list(APPEND implicit_libs_tmp ${arg})
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set(log "${log} arg [${arg}] ==> lib [${arg}]\n")
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elseif("${arg}" MATCHES "^-z(all|default|weak)extract")
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# Link editor option.
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list(APPEND implicit_libs_tmp ${arg})
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set(log "${log} arg [${arg}] ==> opt [${arg}]\n")
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else()
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set(log "${log} arg [${arg}] ==> ignore\n")
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endif()
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endforeach()
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break()
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elseif("${line}" MATCHES "LPATH(=| is:? )")
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set(log "${log} LPATH line: [${line}]\n")
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# HP search path.
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string(REGEX REPLACE ".*LPATH(=| is:? *)" "" paths "${line}")
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string(REPLACE ":" ";" paths "${paths}")
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list(APPEND implicit_dirs_tmp ${paths})
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set(log "${log} dirs [${paths}]\n")
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else()
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set(log "${log} ignore line: [${line}]\n")
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endif()
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endforeach()
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# Cleanup list of libraries and flags.
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# We remove items that are not language-specific.
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set(implicit_libs "")
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foreach(lib IN LISTS implicit_libs_tmp)
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if("${lib}" MATCHES "^(crt.*\\.o|gcc.*|System.*)$")
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set(log "${log} remove lib [${lib}]\n")
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else()
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list(APPEND implicit_libs "${lib}")
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endif()
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endforeach()
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# Cleanup list of directories.
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set(implicit_dirs "")
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foreach(d IN LISTS implicit_dirs_tmp)
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get_filename_component(dir "${d}" ABSOLUTE)
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list(APPEND implicit_dirs "${dir}")
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set(log "${log} collapse dir [${d}] ==> [${dir}]\n")
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endforeach()
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list(REMOVE_DUPLICATES implicit_dirs)
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# Log results.
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set(log "${log} implicit libs: [${implicit_libs}]\n")
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set(log "${log} implicit dirs: [${implicit_dirs}]\n")
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# Return results.
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set(${lib_var} "${implicit_libs}" PARENT_SCOPE)
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set(${dir_var} "${implicit_dirs}" PARENT_SCOPE)
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set(${log_var} "${log}" PARENT_SCOPE)
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endfunction()
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