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2622bc3f65
The matches have already been calculated and can simply be taken from CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very similar regular expressions.
91 lines
2.9 KiB
CMake
91 lines
2.9 KiB
CMake
#.rst:
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# FindPerl
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# --------
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#
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# Find perl
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#
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# this module looks for Perl
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#
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# ::
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#
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# PERL_EXECUTABLE - the full path to perl
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# PERL_FOUND - If false, don't attempt to use perl.
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# PERL_VERSION_STRING - version of perl found (since CMake 2.8.8)
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#=============================================================================
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# Copyright 2001-2009 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 distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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include(${CMAKE_CURRENT_LIST_DIR}/FindCygwin.cmake)
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set(PERL_POSSIBLE_BIN_PATHS
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${CYGWIN_INSTALL_PATH}/bin
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)
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if(WIN32)
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get_filename_component(
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ActivePerl_CurrentVersion
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ActiveState\\ActivePerl;CurrentVersion]"
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NAME)
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set(PERL_POSSIBLE_BIN_PATHS ${PERL_POSSIBLE_BIN_PATHS}
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"C:/Perl/bin"
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[HKEY_LOCAL_MACHINE\\SOFTWARE\\ActiveState\\ActivePerl\\${ActivePerl_CurrentVersion}]/bin
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)
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endif()
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find_program(PERL_EXECUTABLE
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NAMES perl
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PATHS ${PERL_POSSIBLE_BIN_PATHS}
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)
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if(PERL_EXECUTABLE)
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### PERL_VERSION
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execute_process(
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COMMAND
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${PERL_EXECUTABLE} -V:version
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OUTPUT_VARIABLE
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PERL_VERSION_OUTPUT_VARIABLE
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RESULT_VARIABLE
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PERL_VERSION_RESULT_VARIABLE
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if(NOT PERL_VERSION_RESULT_VARIABLE AND NOT PERL_VERSION_OUTPUT_VARIABLE MATCHES "^version='UNKNOWN'")
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string(REGEX REPLACE "version='([^']+)'.*" "\\1" PERL_VERSION_STRING ${PERL_VERSION_OUTPUT_VARIABLE})
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else()
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execute_process(
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COMMAND ${PERL_EXECUTABLE} -v
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OUTPUT_VARIABLE PERL_VERSION_OUTPUT_VARIABLE
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RESULT_VARIABLE PERL_VERSION_RESULT_VARIABLE
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if(NOT PERL_VERSION_RESULT_VARIABLE AND PERL_VERSION_OUTPUT_VARIABLE MATCHES "This is perl.*[ \\(]v([0-9\\._]+)[ \\)]")
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set(PERL_VERSION_STRING "${CMAKE_MATCH_1}")
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elseif(NOT PERL_VERSION_RESULT_VARIABLE AND PERL_VERSION_OUTPUT_VARIABLE MATCHES "This is perl, version ([0-9\\._]+) +")
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set(PERL_VERSION_STRING "${CMAKE_MATCH_1}")
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endif()
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endif()
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endif()
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# Deprecated settings for compatibility with CMake1.4
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set(PERL ${PERL_EXECUTABLE})
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# handle the QUIETLY and REQUIRED arguments and set PERL_FOUND to TRUE if
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# all listed variables are TRUE
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(Perl
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REQUIRED_VARS PERL_EXECUTABLE
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VERSION_VAR PERL_VERSION_STRING)
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mark_as_advanced(PERL_EXECUTABLE)
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