# - Try to find ZLIB # Once done this will define # # ZLIB_ROOT_DIR - Set this variable to the root installation of ZLIB # # Read-Only variables: # ZLIB_FOUND - system has ZLIB # ZLIB_INCLUDE_DIRS - the ZLIB include directory # ZLIB_LIBRARIES - Link these to use ZLIB # # ZLIB_VERSION_STRING - The version of zlib found (x.y.z) # ZLIB_VERSION_MAJOR - The major version of zlib # ZLIB_VERSION_MINOR - The minor version of zlib # ZLIB_VERSION_PATCH - The patch version of zlib # ZLIB_VERSION_TWEAK - The tweak version of zlib # # The following variable are provided for backward compatibility # # ZLIB_MAJOR_VERSION - The major version of zlib # ZLIB_MINOR_VERSION - The minor version of zlib # ZLIB_PATCH_VERSION - The patch version of zlib # #============================================================================= # Copyright (c) 2001-2009 Kitware, Inc. # Copyright (c) 2011 Andreas Schneider # # 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. #============================================================================= # if (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS) # in cache already set(ZLIB_FOUND TRUE) else (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS) set(_ZLIB_ROOT_HINTS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Zlib;InstallPath]/include" ) set(_ZLIB_ROOT_PATHS "$ENV{PROGRAMFILES}/zlib" ) find_path(ZLIB_ROOT_DIR NAMES include/zlib.h HINTS ${_ZLIB_ROOT_HINTS} PATHS ${_ZLIB_ROOT_PATHS} ) mark_as_advanced(ZLIB_ROOT_DIR) # check for header file find_path(ZLIB_INCLUDE_DIR NAMES zlib.h PATHS /usr/local/include /opt/local/include /sw/include /usr/lib/sfw/include ${ZLIB_ROOT_DIR}/include ) mark_as_advanced(ZLIB_INCLUDE_DIR) # check version number if (ZLIB_INCLUDE_DIR AND EXISTS "${ZLIB_INCLUDE_DIR}/zlib.h") file(STRINGS "${ZLIB_INCLUDE_DIR}/zlib.h" ZLIB_H REGEX "^#define ZLIB_VERSION \"[^\"]*\"$") string(REGEX REPLACE "^.*ZLIB_VERSION \"([0-9]+).*$" "\\1" ZLIB_VERSION_MAJOR "${ZLIB_H}") string(REGEX REPLACE "^.*ZLIB_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" ZLIB_VERSION_MINOR "${ZLIB_H}") string(REGEX REPLACE "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" ZLIB_VERSION_PATCH "${ZLIB_H}") set(ZLIB_VERSION_STRING "${ZLIB_VERSION_MAJOR}.${ZLIB_VERSION_MINOR}.${ZLIB_VERSION_PATCH}") # only append a TWEAK version if it exists: set(ZLIB_VERSION_TWEAK "") if ("${ZLIB_H}" MATCHES "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+).*$") set(ZLIB_VERSION_TWEAK "${CMAKE_MATCH_1}") set(ZLIB_VERSION_STRING "${ZLIB_VERSION_STRING}.${ZLIB_VERSION_TWEAK}") endif ("${ZLIB_H}" MATCHES "^.*ZLIB_VERSION \"[0-9]+\\.[0-9]+\\.[0-9]+\\.([0-9]+).*$") set(ZLIB_MAJOR_VERSION "${ZLIB_VERSION_MAJOR}") set(ZLIB_MINOR_VERSION "${ZLIB_VERSION_MINOR}") set(ZLIB_PATCH_VERSION "${ZLIB_VERSION_PATCH}") endif (ZLIB_INCLUDE_DIR AND EXISTS "${ZLIB_INCLUDE_DIR}/zlib.h") find_library(ZLIB_LIBRARY NAMES z zdll zlib zlib1 zlibd PATHS /usr/local/lib /opt/local/lib /sw/lib /usr/sfw/lib/64 /usr/sfw/lib ${ZLIB_ROOT_DIR}/lib ) mark_as_advanced(ZLIB_LIBRARY) include(FindPackageHandleStandardArgs) find_package_handle_standard_args(ZLIB DEFAULT_MSG ZLIB_INCLUDE_DIR ZLIB_LIBRARY) #find_package_handle_standard_args(ZLIB REQUIRED_VARS ZLIB_INCLUDE_DIR ZLIB_LIBRARY # VERSION_VAR ZLIB_VERSION_STRING) if (ZLIB_FOUND) set(ZLIB_INCLUDE_DIRS ${ZLIB_INCLUDE_DIR}) set(ZLIB_LIBRARIES ${ZLIB_LIBRARY}) endif (ZLIB_FOUND) endif (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)