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Viewing changes to cmake/Modules/FindZLIB.cmake

  • Committer: Bazaar Package Importer
  • Author(s): Laurent Bigonville
  • Date: 2011-06-15 15:48:07 UTC
  • mfrom: (1.1.10 upstream) (4.1.12 sid)
  • Revision ID: james.westby@ubuntu.com-20110615154807-3muklcqfftr1vtch
Tags: 0.5.0-2
* debian/patches/0002-Check-for-NULL-pointers-in-string-c.patch:
  Consolidate patch (Should fix previous REJECT)
* Support multiarch spec

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Lines of Context:
cmake/Modules/FindZLIB.cmake
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# - Try to find ZLIB
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# Once done this will define
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#
 
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#  ZLIB_ROOT_DIR - Set this variable to the root installation of ZLIB
 
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#
 
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# Read-Only variables:
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#  ZLIB_FOUND - system has ZLIB
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#  ZLIB_INCLUDE_DIRS - the ZLIB include directory
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#  ZLIB_LIBRARIES - Link these to use ZLIB
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#  ZLIB_DEFINITIONS - Compiler switches required for using ZLIB
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#
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#  Copyright (c) 2009 Andreas Schneider <mail@cynapses.org>
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#
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#  Redistribution and use is allowed according to the terms of the New
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#  BSD license.
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#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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#
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#
 
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#  ZLIB_VERSION_STRING - The version of zlib found (x.y.z)
 
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#  ZLIB_VERSION_MAJOR  - The major version of zlib
 
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#  ZLIB_VERSION_MINOR  - The minor version of zlib
 
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#  ZLIB_VERSION_PATCH  - The patch version of zlib
 
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#  ZLIB_VERSION_TWEAK  - The tweak version of zlib
 
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#
 
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# The following variable are provided for backward compatibility
 
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#
 
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#  ZLIB_MAJOR_VERSION  - The major version of zlib
 
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#  ZLIB_MINOR_VERSION  - The minor version of zlib
 
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#  ZLIB_PATCH_VERSION  - The patch version of zlib
 
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#
 
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#=============================================================================
 
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#  Copyright (c) 2001-2009 Kitware, Inc.
 
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#  Copyright (c) 2011      Andreas Schneider <asn@cryptomilk.org>
 
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#
 
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#  Distributed under the OSI-approved BSD License (the "License");
 
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#  see accompanying file Copyright.txt for details.
 
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#
 
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#  This software is distributed WITHOUT ANY WARRANTY; without even the
 
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#  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
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#  See the License for more information.
 
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#=============================================================================
 
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#
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if (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
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  # in cache already
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  set(ZLIB_FOUND TRUE)
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else (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
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  if (WIN32)
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    set(_ZLIB_DIR $ENV{PROGRAMFILES}/GnuWin32)
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  endif (WIN32)
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  find_path(ZLIB_INCLUDE_DIR
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    NAMES
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      zlib.h
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    PATHS
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      ${_ZLIB_DIR}/include
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      /usr/include
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      /usr/local/include
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      /opt/local/include
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      /sw/include
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  )
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  mark_as_advanced(ZLIB_INCLUDE_DIR)
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  find_library(Z_LIBRARY
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    NAMES
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      z
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      zlib
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      zlib1
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    PATHS
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      ${_ZLIB_DIR}/lib
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      /usr/lib
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      /usr/local/lib
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      /opt/local/lib
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      /sw/lib
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  )
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  mark_as_advanced(Z_LIBRARY)
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  if (Z_LIBRARY)
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    set(Z_FOUND TRUE)
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  endif (Z_LIBRARY)
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  set(ZLIB_INCLUDE_DIRS
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    ${ZLIB_INCLUDE_DIR}
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  )
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  if (Z_FOUND)
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    set(ZLIB_LIBRARIES
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      ${ZLIB_LIBRARIES}
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      ${Z_LIBRARY}
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    )
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  endif (Z_FOUND)
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  if (ZLIB_INCLUDE_DIRS AND ZLIB_LIBRARIES)
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     set(ZLIB_FOUND TRUE)
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  endif (ZLIB_INCLUDE_DIRS AND ZLIB_LIBRARIES)
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  if (ZLIB_FOUND)
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    if (NOT ZLIB_FIND_QUIETLY)
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      message(STATUS "Found ZLIB: ${ZLIB_LIBRARIES}")
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    endif (NOT ZLIB_FIND_QUIETLY)
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  else (ZLIB_FOUND)
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    if (ZLIB_FIND_REQUIRED)
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      message(FATAL_ERROR "Could not find ZLIB")
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    endif (ZLIB_FIND_REQUIRED)
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  endif (ZLIB_FOUND)
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  # show the ZLIB_INCLUDE_DIRS and ZLIB_LIBRARIES variables only in the advanced view
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  mark_as_advanced(ZLIB_INCLUDE_DIRS ZLIB_LIBRARIES)
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    set(_ZLIB_ROOT_HINTS
 
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        "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Zlib;InstallPath]/include"
 
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    )
 
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    set(_ZLIB_ROOT_PATHS
 
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        "$ENV{PROGRAMFILES}/zlib"
 
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    )
 
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    find_path(ZLIB_ROOT_DIR
 
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        NAMES
 
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            include/zlib.h
 
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        HINTS
 
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            ${_ZLIB_ROOT_HINTS}
 
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        PATHS
 
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            ${_ZLIB_ROOT_PATHS}
 
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    )
 
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    mark_as_advanced(ZLIB_ROOT_DIR)
 
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    # check for header file
 
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    find_path(ZLIB_INCLUDE_DIR
 
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        NAMES
 
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            zlib.h
 
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        PATHS
 
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            /usr/local/include
 
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            /opt/local/include
 
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            /sw/include
 
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            /usr/lib/sfw/include
 
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            ${ZLIB_ROOT_DIR}/include
 
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    )
 
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    mark_as_advanced(ZLIB_INCLUDE_DIR)
 
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    # check version number
 
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    if (ZLIB_INCLUDE_DIR AND EXISTS "${ZLIB_INCLUDE_DIR}/zlib.h")
 
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        file(STRINGS "${ZLIB_INCLUDE_DIR}/zlib.h" ZLIB_H REGEX "^#define ZLIB_VERSION \"[^\"]*\"$")
 
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        string(REGEX REPLACE "^.*ZLIB_VERSION \"([0-9]+).*$" "\\1" ZLIB_VERSION_MAJOR "${ZLIB_H}")
 
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        string(REGEX REPLACE "^.*ZLIB_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" ZLIB_VERSION_MINOR  "${ZLIB_H}")
 
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        string(REGEX REPLACE "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" ZLIB_VERSION_PATCH "${ZLIB_H}")
 
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80
        set(ZLIB_VERSION_STRING "${ZLIB_VERSION_MAJOR}.${ZLIB_VERSION_MINOR}.${ZLIB_VERSION_PATCH}")
 
81
 
 
82
        # only append a TWEAK version if it exists:
 
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        set(ZLIB_VERSION_TWEAK "")
 
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        if ("${ZLIB_H}" MATCHES "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+).*$")
 
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            set(ZLIB_VERSION_TWEAK "${CMAKE_MATCH_1}")
 
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            set(ZLIB_VERSION_STRING "${ZLIB_VERSION_STRING}.${ZLIB_VERSION_TWEAK}")
 
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        endif ("${ZLIB_H}" MATCHES "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+).*$")
 
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        set(ZLIB_MAJOR_VERSION "${ZLIB_VERSION_MAJOR}")
 
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        set(ZLIB_MINOR_VERSION "${ZLIB_VERSION_MINOR}")
 
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        set(ZLIB_PATCH_VERSION "${ZLIB_VERSION_PATCH}")
 
92
    endif (ZLIB_INCLUDE_DIR AND EXISTS "${ZLIB_INCLUDE_DIR}/zlib.h")
 
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94
    find_library(ZLIB_LIBRARY
 
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        NAMES
 
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            z
 
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            zdll
 
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            zlib
 
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            zlib1
 
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        PATHS
 
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            /usr/local/lib
 
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            /opt/local/lib
 
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            /sw/lib
 
104
            /usr/sfw/lib/64
 
105
            /usr/sfw/lib
 
106
            ${ZLIB_ROOT_DIR}/lib
 
107
    )
 
108
    mark_as_advanced(ZLIB_LIBRARY)
 
109
 
 
110
    include(FindPackageHandleStandardArgs)
 
111
    find_package_handle_standard_args(ZLIB DEFAULT_MSG ZLIB_INCLUDE_DIR ZLIB_LIBRARY)
 
112
    #find_package_handle_standard_args(ZLIB REQUIRED_VARS ZLIB_INCLUDE_DIR ZLIB_LIBRARY
 
113
    #                                       VERSION_VAR ZLIB_VERSION_STRING)
 
114
 
 
115
    if (ZLIB_FOUND)
 
116
        set(ZLIB_INCLUDE_DIRS ${ZLIB_INCLUDE_DIR})
 
117
        set(ZLIB_LIBRARIES ${ZLIB_LIBRARY})
 
118
    endif (ZLIB_FOUND)
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endif (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
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