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f325fc42e8
Add check for compressBound() and deflateBound() Keep existing functionality: fallback to bundled zlib if functions not found.
78 lines
2.8 KiB
CMake
78 lines
2.8 KiB
CMake
# Copyright (c) 2009 Sun Microsystems, Inc.
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# Use is subject to license terms.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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MACRO (MYSQL_USE_BUNDLED_ZLIB)
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SET(ZLIB_LIBRARY zlib)
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SET(ZLIB_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/zlib)
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SET(ZLIB_FOUND TRUE)
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SET(WITH_ZLIB "bundled" CACHE STRING "Use bundled zlib")
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ADD_SUBDIRECTORY(zlib)
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GET_TARGET_PROPERTY(src zlib SOURCES)
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FOREACH(file ${src})
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SET(ZLIB_SOURCES ${ZLIB_SOURCES} ${CMAKE_SOURCE_DIR}/zlib/${file})
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ENDFOREACH()
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ENDMACRO()
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# MYSQL_CHECK_ZLIB_WITH_COMPRESS
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#
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# Provides the following configure options:
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# WITH_ZLIB_BUNDLED
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# If this is set,we use bindled zlib
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# If this is not set,search for system zlib.
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# if system zlib is not found, use bundled copy
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# ZLIB_LIBRARIES, ZLIB_INCLUDE_DIR and ZLIB_SOURCES
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# are set after this macro has run
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MACRO (MYSQL_CHECK_ZLIB_WITH_COMPRESS)
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IF(CMAKE_SYSTEM_NAME STREQUAL "OS400" OR
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CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
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CMAKE_SYSTEM_NAME STREQUAL "Windows")
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# Use bundled zlib on some platforms by default (system one is too
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# old or not existent)
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IF (NOT WITH_ZLIB)
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SET(WITH_ZLIB "bundled" CACHE STRING "By default use bundled zlib on this platform")
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ENDIF()
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ENDIF()
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IF(WITH_ZLIB STREQUAL "bundled")
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MYSQL_USE_BUNDLED_ZLIB()
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ELSE()
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SET(ZLIB_FIND_QUIETLY TRUE)
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INCLUDE(FindZLIB)
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IF(ZLIB_FOUND)
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INCLUDE(CheckFunctionExists)
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SET(CMAKE_REQUIRED_LIBRARIES z)
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CHECK_FUNCTION_EXISTS(crc32 HAVE_CRC32)
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CHECK_FUNCTION_EXISTS(compressBound HAVE_COMPRESSBOUND)
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CHECK_FUNCTION_EXISTS(deflateBound HAVE_DEFLATEBOUND)
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SET(CMAKE_REQUIRED_LIBRARIES)
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IF(HAVE_CRC32 AND HAVE_COMPRESSBOUND AND HAVE_DEFLATEBOUND)
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SET(ZLIB_LIBRARY z CACHE INTERNAL "System zlib library")
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SET(WITH_ZLIB "system" CACHE STRING
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"Which zlib to use (possible values are 'bundled' or 'system')")
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SET(ZLIB_SOURCES "")
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ELSE()
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SET(ZLIB_FOUND FALSE CACHE INTERNAL "Zlib found but not usable")
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MESSAGE(STATUS "system zlib found but not usable")
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ENDIF()
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ENDIF()
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IF(NOT ZLIB_FOUND)
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MYSQL_USE_BUNDLED_ZLIB()
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ENDIF()
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ENDIF()
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SET(HAVE_COMPRESS 1)
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ENDMACRO()
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