[136] | 1 | # - Find libarchive library and headers
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| 2 | # The module defines the following variables:
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| 3 | #
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| 4 | # LibArchive_FOUND - true if libarchive was found
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| 5 | # LibArchive_INCLUDE_DIRS - include search path
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| 6 | # LibArchive_LIBRARIES - libraries to link
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| 7 | # LibArchive_VERSION - libarchive 3-component version number
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| 8 |
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| 9 | #=============================================================================
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| 10 | # Copyright 2010 Kitware, Inc.
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| 11 | #
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| 12 | # Distributed under the OSI-approved BSD License (the "License");
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| 13 | # see accompanying file Copyright.txt for details.
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| 14 | #
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| 15 | # This software is distributed WITHOUT ANY WARRANTY; without even the
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| 16 | # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 17 | # See the License for more information.
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| 18 | #=============================================================================
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| 19 | # (To distribute this file outside of CMake, substitute the full
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| 20 | # License text for the above reference.)
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| 21 |
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| 22 | find_path(LibArchive_INCLUDE_DIR
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| 23 | NAMES archive.h
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| 24 | PATHS ${LibArchive_INCLUDEDIR} ${LibArchive_ROOT} "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\LibArchive;InstallPath]")
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| 25 |
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| 26 | set(LibArchive_LIB_PREFIX "")
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| 27 | if(WIN32 AND LibArchive_USE_STATIC_LIBS AND NOT CYGWIN)
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| 28 | set(LibArchive_LIB_PREFIX "lib")
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| 29 | endif()
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| 30 |
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| 31 | # Support preference of static libs by adjusting CMAKE_FIND_LIBRARY_SUFFIXES
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| 32 | if(LibArchive_USE_STATIC_LIBS)
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| 33 | set(_libarchive_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
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| 34 | if(WIN32)
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| 35 | set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
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| 36 | else()
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| 37 | set(CMAKE_FIND_LIBRARY_SUFFIXES .a )
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| 38 | endif()
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| 39 | endif()
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| 40 |
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| 41 | find_library(LibArchive_LIBRARY
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| 42 | NAMES archive libarchive
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| 43 | PATHS ${LibArchive_LIBRARYDIR} ${LibArchive_ROOT} "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\LibArchive;InstallPath]")
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| 44 |
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| 45 | # Restore the original find library ordering
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| 46 | if(LibArchive_USE_STATIC_LIBS)
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| 47 | set(CMAKE_FIND_LIBRARY_SUFFIXES ${_libarchive_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
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| 48 |
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| 49 | if(LibArchive_LIBRARY)
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| 50 | add_definitions(-DLIBARCHIVE_STATIC)
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| 51 | endif()
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| 52 | endif()
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| 53 |
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| 54 | mark_as_advanced(LibArchive_INCLUDE_DIR LibArchive_LIBRARY)
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| 55 |
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| 56 | # Extract the version number from the header.
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| 57 | if(LibArchive_INCLUDE_DIR AND EXISTS "${LibArchive_INCLUDE_DIR}/archive.h")
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| 58 | # The version string appears in one of two known formats in the header:
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| 59 | # #define ARCHIVE_LIBRARY_VERSION "libarchive 2.4.12"
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| 60 | # #define ARCHIVE_VERSION_STRING "libarchive 2.8.4"
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| 61 | # Match either format.
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| 62 | set(_LibArchive_VERSION_REGEX "^#define[ \t]+ARCHIVE[_A-Z]+VERSION[_A-Z]*[ \t]+\"libarchive +([0-9]+)\\.([0-9]+)\\.([0-9]+)[^\"]*\".*$")
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| 63 | file(STRINGS "${LibArchive_INCLUDE_DIR}/archive.h" _LibArchive_VERSION_STRING LIMIT_COUNT 1 REGEX "${_LibArchive_VERSION_REGEX}")
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| 64 | if(_LibArchive_VERSION_STRING)
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| 65 | string(REGEX REPLACE "${_LibArchive_VERSION_REGEX}" "\\1.\\2.\\3" LibArchive_VERSION "${_LibArchive_VERSION_STRING}")
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| 66 | endif()
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| 67 | unset(_LibArchive_VERSION_REGEX)
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| 68 | unset(_LibArchive_VERSION_STRING)
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| 69 | endif()
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| 70 |
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| 71 | # Handle the QUIETLY and REQUIRED arguments and set LIBARCHIVE_FOUND
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| 72 | # to TRUE if all listed variables are TRUE.
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| 73 | # (Use ${CMAKE_ROOT}/Modules instead of ${CMAKE_CURRENT_LIST_DIR} because CMake
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| 74 | # itself includes this FindLibArchive when built with an older CMake that does
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| 75 | # not provide it. The older CMake also does not have CMAKE_CURRENT_LIST_DIR.)
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| 76 | include(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
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| 77 | find_package_handle_standard_args(LibArchive
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| 78 | REQUIRED_VARS LibArchive_LIBRARY LibArchive_INCLUDE_DIR
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| 79 | VERSION_VAR LibArchive_VERSION
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| 80 | )
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| 81 | set(LibArchive_FOUND ${LIBARCHIVE_FOUND})
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| 82 | unset(LIBARCHIVE_FOUND)
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| 83 |
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| 84 | if(LibArchive_FOUND)
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| 85 | set(LibArchive_INCLUDE_DIRS ${LibArchive_INCLUDE_DIR})
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| 86 | set(LibArchive_LIBRARIES ${LibArchive_LIBRARY})
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| 87 | endif()
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