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# - Find LibLZMA
# Find LibLZMA headers and library
#
#  LIBLZMA_FOUND             - True if liblzma is found.
#  LIBLZMA_INCLUDE_DIRS      - Directory where liblzma headers are located.
#  LIBLZMA_LIBRARIES         - Lzma libraries to link against.
#  LIBLZMA_HAS_AUTO_DECODER  - True if lzma_auto_decoder() is found
(required).
#  LIBLZMA_HAS_EASY_ENCODER  - True if lzma_easy_encoder() is found
(required).
#  LIBLZMA_HAS_LZMA_PRESET   - True if lzma_lzma_preset() is found
(required).
#  LIBLZMA_VERSION_MAJOR     - The major version of lzma
#  LIBLZMA_VERSION_MINOR     - The minor version of lzma
#  LIBLZMA_VERSION_PATCH     - The patch version of lzma
#  LIBLZMA_VERSION_STRING    - version number as a string (ex:
"5.0.3")

#=============================================================================
# Copyright 2008 Per Øyvind Karlsen <peroyvind@mandriva.org>
# Copyright 2009 Alexander Neundorf <neundorf@kde.org>
# Copyright 2009 Helio Chissini de Castro <helio@kde.org>
# Copyright 2012 Mario Bensi <mbensi@ipsquad.net>
#
# 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.)


find_path(LIBLZMA_INCLUDE_DIR lzma.h )
find_library(LIBLZMA_LIBRARY lzma)

if(LIBLZMA_INCLUDE_DIR AND EXISTS
"${LIBLZMA_INCLUDE_DIR}/lzma/version.h")
    file(STRINGS "${LIBLZMA_INCLUDE_DIR}/lzma/version.h"
LIBLZMA_HEADER_CONTENTS REGEX "#define LZMA_VERSION_[A-Z]+
[0-9]+")

    string(REGEX REPLACE ".*#define LZMA_VERSION_MAJOR
([0-9]+).*" "\\1" LIBLZMA_VERSION_MAJOR
"${LIBLZMA_HEADER_CONTENTS}")
    string(REGEX REPLACE ".*#define LZMA_VERSION_MINOR
([0-9]+).*" "\\1" LIBLZMA_VERSION_MINOR
"${LIBLZMA_HEADER_CONTENTS}")
    string(REGEX REPLACE ".*#define LZMA_VERSION_PATCH
([0-9]+).*" "\\1" LIBLZMA_VERSION_PATCH
"${LIBLZMA_HEADER_CONTENTS}")

    set(LIBLZMA_VERSION_STRING
"${LIBLZMA_VERSION_MAJOR}.${LIBLZMA_VERSION_MINOR}.${LIBLZMA_VERSION_PATCH}")
    unset(LIBLZMA_HEADER_CONTENTS)
endif()

# We're using new code known now as XZ, even library still been called
LZMA
# it can be found in http://tukaani.org/xz/
# Avoid using old codebase
if (LIBLZMA_LIBRARY)
   include(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)
   CHECK_LIBRARY_EXISTS(${LIBLZMA_LIBRARY} lzma_auto_decoder ""
LIBLZMA_HAS_AUTO_DECODER)
   CHECK_LIBRARY_EXISTS(${LIBLZMA_LIBRARY} lzma_easy_encoder ""
LIBLZMA_HAS_EASY_ENCODER)
   CHECK_LIBRARY_EXISTS(${LIBLZMA_LIBRARY} lzma_lzma_preset ""
LIBLZMA_HAS_LZMA_PRESET)
endif ()

include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibLZMA  REQUIRED_VARS 
LIBLZMA_INCLUDE_DIR
                                                          LIBLZMA_LIBRARY
                                                         
LIBLZMA_HAS_AUTO_DECODER
                                                         
LIBLZMA_HAS_EASY_ENCODER
                                                         
LIBLZMA_HAS_LZMA_PRESET
                                           VERSION_VAR   
LIBLZMA_VERSION_STRING
                                 )

if (LIBLZMA_FOUND)
    set(LIBLZMA_LIBRARIES ${LIBLZMA_LIBRARY})
    set(LIBLZMA_INCLUDE_DIRS ${LIBLZMA_INCLUDE_DIR})
endif ()

mark_as_advanced( LIBLZMA_INCLUDE_DIR LIBLZMA_LIBRARY )