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+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindLibArchive
+--------------
+
+Find libarchive library and headers.
+Libarchive is multi-format archive and compression library.
+
+The module defines the following variables:
+
+::
+
+ LibArchive_FOUND - true if libarchive was found
+ LibArchive_INCLUDE_DIRS - include search path
+ LibArchive_LIBRARIES - libraries to link
+ LibArchive_VERSION - libarchive 3-component version number
+
+The module defines the following ``IMPORTED`` targets:
+
+::
+
+ LibArchive::LibArchive - target for linking against libarchive
+
+.. versionadded:: 3.6
+ Support for new libarchive 3.2 version string format.
+
+#]=======================================================================]
+
+find_path(LibArchive_INCLUDE_DIR
+ NAMES archive.h
+ PATHS
+ "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\LibArchive;InstallPath]/include"
+ DOC "libarchive include directory"
+ )
+
+find_library(LibArchive_LIBRARY
+ NAMES archive libarchive
+ PATHS
+ "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\LibArchive;InstallPath]/lib"
+ DOC "libarchive library"
+ )
+
+mark_as_advanced(LibArchive_INCLUDE_DIR LibArchive_LIBRARY)
+
+# Extract the version number from the header.
+if(LibArchive_INCLUDE_DIR AND EXISTS "${LibArchive_INCLUDE_DIR}/archive.h")
+ # The version string appears in one of three known formats in the header:
+ # #define ARCHIVE_LIBRARY_VERSION "libarchive 2.4.12"
+ # #define ARCHIVE_VERSION_STRING "libarchive 2.8.4"
+ # #define ARCHIVE_VERSION_ONLY_STRING "3.2.0"
+ # Match any format.
+ set(_LibArchive_VERSION_REGEX "^#define[ \t]+ARCHIVE[_A-Z]+VERSION[_A-Z]*[ \t]+\"(libarchive +)?([0-9]+)\\.([0-9]+)\\.([0-9]+)[^\"]*\".*$")
+ file(STRINGS "${LibArchive_INCLUDE_DIR}/archive.h" _LibArchive_VERSION_STRING LIMIT_COUNT 1 REGEX "${_LibArchive_VERSION_REGEX}")
+ if(_LibArchive_VERSION_STRING)
+ string(REGEX REPLACE "${_LibArchive_VERSION_REGEX}" "\\2.\\3.\\4" LibArchive_VERSION "${_LibArchive_VERSION_STRING}")
+ endif()
+ unset(_LibArchive_VERSION_REGEX)
+ unset(_LibArchive_VERSION_STRING)
+endif()
+
+include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
+find_package_handle_standard_args(LibArchive
+ REQUIRED_VARS LibArchive_LIBRARY LibArchive_INCLUDE_DIR
+ VERSION_VAR LibArchive_VERSION
+ )
+unset(LIBARCHIVE_FOUND)
+
+if(LibArchive_FOUND)
+ set(LibArchive_INCLUDE_DIRS ${LibArchive_INCLUDE_DIR})
+ set(LibArchive_LIBRARIES ${LibArchive_LIBRARY})
+
+ if (NOT TARGET LibArchive::LibArchive)
+ add_library(LibArchive::LibArchive UNKNOWN IMPORTED)
+ set_target_properties(LibArchive::LibArchive PROPERTIES
+ IMPORTED_LOCATION "${LibArchive_LIBRARY}"
+ INTERFACE_INCLUDE_DIRECTORIES "${LibArchive_INCLUDE_DIR}")
+ endif ()
+endif()