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#.rst:
# FindBZip2
# ---------
#
# Try to find BZip2
#
# IMPORTED Targets
# ^^^^^^^^^^^^^^^^
#
# This module defines :prop_tgt:`IMPORTED` target ``BZip2::BZip2``, if
# BZip2 has been found.
#
# Result Variables
# ^^^^^^^^^^^^^^^^
#
# This module defines the following variables:
#
# ::
#
# BZIP2_FOUND - system has BZip2
# BZIP2_INCLUDE_DIR - the BZip2 include directory
# BZIP2_LIBRARIES - Link these to use BZip2
# BZIP2_NEED_PREFIX - this is set if the functions are prefixed with BZ2_
# BZIP2_VERSION_STRING - the version of BZip2 found (since CMake 2.8.8)
#=============================================================================
# Copyright 2006-2012 Kitware, Inc.
# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
# Copyright 2012 Rolf Eike Beer <eike@sf-mail.de>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
set(_BZIP2_PATHS PATHS
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Bzip2;InstallPath]"
)
find_path(BZIP2_INCLUDE_DIR bzlib.h ${_BZIP2_PATHS} PATH_SUFFIXES include)
if (NOT BZIP2_LIBRARIES)
find_library(BZIP2_LIBRARY_RELEASE NAMES bz2 bzip2 ${_BZIP2_PATHS} PATH_SUFFIXES lib)
find_library(BZIP2_LIBRARY_DEBUG NAMES bz2d bzip2d ${_BZIP2_PATHS} PATH_SUFFIXES lib)
include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
SELECT_LIBRARY_CONFIGURATIONS(BZIP2)
endif ()
if (BZIP2_INCLUDE_DIR AND EXISTS "${BZIP2_INCLUDE_DIR}/bzlib.h")
file(STRINGS "${BZIP2_INCLUDE_DIR}/bzlib.h" BZLIB_H REGEX "bzip2/libbzip2 version [0-9]+\\.[^ ]+ of [0-9]+ ")
string(REGEX REPLACE ".* bzip2/libbzip2 version ([0-9]+\\.[^ ]+) of [0-9]+ .*" "\\1" BZIP2_VERSION_STRING "${BZLIB_H}")
endif ()
# handle the QUIETLY and REQUIRED arguments and set BZip2_FOUND to TRUE if
# all listed variables are TRUE
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(BZip2
REQUIRED_VARS BZIP2_LIBRARIES BZIP2_INCLUDE_DIR
VERSION_VAR BZIP2_VERSION_STRING)
if (BZIP2_FOUND)
include(${CMAKE_CURRENT_LIST_DIR}/CheckSymbolExists.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake)
cmake_push_check_state()
set(CMAKE_REQUIRED_QUIET ${BZip2_FIND_QUIETLY})
set(CMAKE_REQUIRED_INCLUDES ${BZIP2_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${BZIP2_LIBRARIES})
CHECK_SYMBOL_EXISTS(BZ2_bzCompressInit "bzlib.h" BZIP2_NEED_PREFIX)
cmake_pop_check_state()
if(NOT TARGET BZip2::BZip2)
add_library(BZip2::BZip2 UNKNOWN IMPORTED)
set_target_properties(BZip2::BZip2 PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${BZIP2_INCLUDE_DIRS}")
if(BZIP2_LIBRARY_RELEASE)
set_property(TARGET BZip2::BZip2 APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(BZip2::BZip2 PROPERTIES
IMPORTED_LOCATION_RELEASE "${BZIP2_LIBRARY_RELEASE}")
endif()
if(BZIP2_LIBRARY_DEBUG)
set_property(TARGET BZip2::BZip2 APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(BZip2::BZip2 PROPERTIES
IMPORTED_LOCATION_DEBUG "${BZIP2_LIBRARY_DEBUG}")
endif()
if(NOT BZIP2_LIBRARY_RELEASE AND NOT BZIP2_LIBRARY_DEBUG)
set_property(TARGET BZip2::BZip2 APPEND PROPERTY
IMPORTED_LOCATION "${BZIP2_LIBRARY}")
endif()
endif()
endif ()
mark_as_advanced(BZIP2_INCLUDE_DIR)
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