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Diffstat (limited to 'libssh/cmake/Modules/FindZLIB.cmake')
-rw-r--r-- | libssh/cmake/Modules/FindZLIB.cmake | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/libssh/cmake/Modules/FindZLIB.cmake b/libssh/cmake/Modules/FindZLIB.cmake new file mode 100644 index 00000000..f68207e4 --- /dev/null +++ b/libssh/cmake/Modules/FindZLIB.cmake @@ -0,0 +1,120 @@ +# - 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 <asn@cryptomilk.org> +# +# 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) |