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Diffstat (limited to 'Modules/FindBZip2.cmake')
| -rw-r--r-- | Modules/FindBZip2.cmake | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/Modules/FindBZip2.cmake b/Modules/FindBZip2.cmake new file mode 100644 index 0000000..b479332 --- /dev/null +++ b/Modules/FindBZip2.cmake @@ -0,0 +1,67 @@ +#.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(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake) + include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake) + cmake_push_check_state() + set(CMAKE_REQUIRED_QUIET ${BZip2_FIND_QUIETLY}) + CHECK_LIBRARY_EXISTS("${BZIP2_LIBRARIES}" BZ2_bzCompressInit "" BZIP2_NEED_PREFIX) + cmake_pop_check_state() +endif () + +mark_as_advanced(BZIP2_INCLUDE_DIR) |