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68 lines
2.9 KiB
CMake
68 lines
2.9 KiB
CMake
# - Find libarchive library and headers
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# The module defines the following variables:
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#
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# LibArchive_FOUND - true if libarchive was found
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# LibArchive_INCLUDE_DIRS - include search path
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# LibArchive_LIBRARIES - libraries to link
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# LibArchive_VERSION - libarchive 3-component version number
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#=============================================================================
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# Copyright 2010 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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find_path(LibArchive_INCLUDE_DIR
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NAMES archive.h
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PATHS
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\LibArchive;InstallPath]/include"
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)
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find_library(LibArchive_LIBRARY
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NAMES archive libarchive
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PATHS
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\LibArchive;InstallPath]/lib"
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)
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mark_as_advanced(LibArchive_INCLUDE_DIR LibArchive_LIBRARY)
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# Extract the version number from the header.
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if(LibArchive_INCLUDE_DIR AND EXISTS "${LibArchive_INCLUDE_DIR}/archive.h")
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# The version string appears in one of two known formats in the header:
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# #define ARCHIVE_LIBRARY_VERSION "libarchive 2.4.12"
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# #define ARCHIVE_VERSION_STRING "libarchive 2.8.4"
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# Match either format.
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set(_LibArchive_VERSION_REGEX "^#define[ \t]+ARCHIVE[_A-Z]+VERSION[_A-Z]*[ \t]+\"libarchive +([0-9]+)\\.([0-9]+)\\.([0-9]+)[^\"]*\".*$")
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file(STRINGS "${LibArchive_INCLUDE_DIR}/archive.h" _LibArchive_VERSION_STRING LIMIT_COUNT 1 REGEX "${_LibArchive_VERSION_REGEX}")
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if(_LibArchive_VERSION_STRING)
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string(REGEX REPLACE "${_LibArchive_VERSION_REGEX}" "\\1.\\2.\\3" LibArchive_VERSION "${_LibArchive_VERSION_STRING}")
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endif()
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unset(_LibArchive_VERSION_REGEX)
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unset(_LibArchive_VERSION_STRING)
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endif()
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# Handle the QUIETLY and REQUIRED arguments and set LIBARCHIVE_FOUND
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# to TRUE if all listed variables are TRUE.
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# (Use ${CMAKE_ROOT}/Modules instead of ${CMAKE_CURRENT_LIST_DIR} because CMake
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# itself includes this FindLibArchive when built with an older CMake that does
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# not provide it. The older CMake also does not have CMAKE_CURRENT_LIST_DIR.)
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include(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
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find_package_handle_standard_args(LibArchive
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REQUIRED_VARS LibArchive_LIBRARY LibArchive_INCLUDE_DIR
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VERSION_VAR LibArchive_VERSION
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)
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set(LibArchive_FOUND ${LIBARCHIVE_FOUND})
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unset(LIBARCHIVE_FOUND)
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if(LibArchive_FOUND)
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set(LibArchive_INCLUDE_DIRS ${LibArchive_INCLUDE_DIR})
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set(LibArchive_LIBRARIES ${LibArchive_LIBRARY})
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endif()
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