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64 lines
2.4 KiB
CMake
64 lines
2.4 KiB
CMake
#.rst:
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# FindBZip2
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# ---------
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#
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# Try to find BZip2
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#
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# Once done this will define
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#
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# ::
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#
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# BZIP2_FOUND - system has BZip2
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# BZIP2_INCLUDE_DIR - the BZip2 include directory
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# BZIP2_LIBRARIES - Link these to use BZip2
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# BZIP2_NEED_PREFIX - this is set if the functions are prefixed with BZ2_
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# BZIP2_VERSION_STRING - the version of BZip2 found (since CMake 2.8.8)
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#=============================================================================
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# Copyright 2006-2012 Kitware, Inc.
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# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
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# Copyright 2012 Rolf Eike Beer <eike@sf-mail.de>
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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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set(_BZIP2_PATHS PATHS
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Bzip2;InstallPath]"
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)
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find_path(BZIP2_INCLUDE_DIR bzlib.h ${_BZIP2_PATHS} PATH_SUFFIXES include)
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if (NOT BZIP2_LIBRARIES)
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find_library(BZIP2_LIBRARY_RELEASE NAMES bz2 bzip2 ${_BZIP2_PATHS} PATH_SUFFIXES lib)
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find_library(BZIP2_LIBRARY_DEBUG NAMES bzip2d ${_BZIP2_PATHS} PATH_SUFFIXES lib)
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include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
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SELECT_LIBRARY_CONFIGURATIONS(BZIP2)
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endif ()
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if (BZIP2_INCLUDE_DIR AND EXISTS "${BZIP2_INCLUDE_DIR}/bzlib.h")
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file(STRINGS "${BZIP2_INCLUDE_DIR}/bzlib.h" BZLIB_H REGEX "bzip2/libbzip2 version [0-9]+\\.[^ ]+ of [0-9]+ ")
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string(REGEX REPLACE ".* bzip2/libbzip2 version ([0-9]+\\.[^ ]+) of [0-9]+ .*" "\\1" BZIP2_VERSION_STRING "${BZLIB_H}")
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endif ()
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# handle the QUIETLY and REQUIRED arguments and set BZip2_FOUND to TRUE if
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# all listed variables are TRUE
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(BZip2
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REQUIRED_VARS BZIP2_LIBRARIES BZIP2_INCLUDE_DIR
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VERSION_VAR BZIP2_VERSION_STRING)
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if (BZIP2_FOUND)
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include(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)
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CHECK_LIBRARY_EXISTS("${BZIP2_LIBRARIES}" BZ2_bzCompressInit "" BZIP2_NEED_PREFIX)
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endif ()
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mark_as_advanced(BZIP2_INCLUDE_DIR)
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