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- #.rst:
- # FindBZip2
- # ---------
- #
- # Try to find BZip2
- #
- # Once done this will define
- #
- # ::
- #
- # 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 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()
- endif ()
- mark_as_advanced(BZIP2_INCLUDE_DIR)
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