cmake: Improved the ZLIB find module based on CMake one.
Этот коммит содержится в:
Andreas Schneider
родитель
e579dfb342
Коммит
90fc5554e1
@ -1,39 +1,96 @@
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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) 2009-2010 Andreas Schneider <mail@cynapses.org>
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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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# 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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# 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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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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${_ZLIB_ROOT_PATHS}
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)
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mark_as_advanced(ZLIB_ROOT_DIR)
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# check for header file
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find_path(ZLIB_INCLUDE_DIR
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NAMES
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zlib.h
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PATHS
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${_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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/usr/lib/sfw/include
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$ENV{PROGRAMFILES}/GnuWin32/include
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$ENV{PROGRAMFILES}/zlib/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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# 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 "${ZLIB_H}")
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set(ZLIB_VERSION_STRING "${ZLIB_VERSION_MAJOR}.${ZLIB_VERSION_MINOR}.${ZLIB_VERSION_PATCH}")
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# 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}")
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endif (ZLIB_INCLUDE_DIR AND EXISTS "${ZLIB_INCLUDE_DIR}/zlib.h")
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find_library(ZLIB_LIBRARY
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NAMES
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z
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zdll
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@ -47,26 +104,15 @@ else (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
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/sw/lib
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/usr/sfw/lib/64
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/usr/sfw/lib
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$ENV{PROGRAMFILES}/GnuWin32/lib
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$ENV{PROGRAMFILES}/zlib/lib
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)
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set(ZLIB_INCLUDE_DIRS
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${ZLIB_INCLUDE_DIR}
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)
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if (Z_LIBRARY)
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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_LIBRARY)
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mark_as_advanced(ZLIB_LIBRARY)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(ZLIB DEFAULT_MSG ZLIB_LIBRARIES ZLIB_INCLUDE_DIRS)
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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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find_package_handle_standard_args(ZLIB REQUIRED_VARS ZLIB_INCLUDE_DIR ZLIB_LIBRARY
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VERSION_VAR ZLIB_VERSION_STRING)
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if (ZLIB_FOUND)
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set(ZLIB_INCLUDE_DIRS ${ZLIB_INCLUDE_DIR})
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set(ZLIB_LIBRARIES ${ZLIB_LIBRARY})
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endif (ZLIB_FOUND)
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endif (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
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