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author | Andreas Schneider <asn@cryptomilk.org> | 2011-01-16 11:55:52 +0100 |
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committer | Andreas Schneider <asn@cryptomilk.org> | 2011-01-16 11:55:52 +0100 |
commit | cf9ba99b7929522c378b9d28093ae80852c60604 (patch) | |
tree | 04d7e15118f5af7a5a08c7f736a3fc4d0f90f453 | |
parent | b247b453af5aa945699fede99c38b49d040d01a9 (diff) | |
download | cmake-tools-cf9ba99b7929522c378b9d28093ae80852c60604.tar.gz cmake-tools-cf9ba99b7929522c378b9d28093ae80852c60604.tar.xz cmake-tools-cf9ba99b7929522c378b9d28093ae80852c60604.zip |
modules: Added an improved ZLIB module.
-rw-r--r-- | modules/zlib/FindZLIB.cmake | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/modules/zlib/FindZLIB.cmake b/modules/zlib/FindZLIB.cmake new file mode 100644 index 0000000..fcd63b1 --- /dev/null +++ b/modules/zlib/FindZLIB.cmake @@ -0,0 +1,118 @@ +# - 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 + ${_ZLIB_ROOT_PATHS} + ) + mark_as_advanced(ZLIB_ROOT_DIR) + + # check for header file + find_path(ZLIB_INCLUDE_DIR + NAMES + zlib.h + PATHS + /usr/local/include + /opt/local/include + /sw/include + /usr/lib/sfw/include + ) + mark_as_advanced(ZLIB_INCLUDE_DIR) + + # check version number + if (ZLIB_INCLUDE_DIR AND EXISTS "${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 + PATHS + ${_ZLIB_DIR}/lib + /usr/lib + /usr/local/lib + /opt/local/lib + /sw/lib + /usr/sfw/lib/64 + /usr/sfw/lib + ) + mark_as_advanced(ZLIB_LIBRARY) + + include(FindPackageHandleStandardArgs) + 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) |