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# Copyright (c) 2009, 2018, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA
MACRO (MYSQL_USE_BUNDLED_ZLIB)
SET(ZLIB_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/zlib ${CMAKE_BINARY_DIR}/zlib)
SET(BUILD_BUNDLED_ZLIB 1)
SET(ZLIB_LIBRARIES zlib CACHE INTERNAL "Bundled zlib library")
# temporarily define ZLIB_LIBRARY and ZLIB_INCLUDE_DIR for libmariadb
SET(ZLIB_LIBRARY ${ZLIB_LIBRARIES})
SET(ZLIB_INCLUDE_DIR ${ZLIB_INCLUDE_DIRS})
SET(ZLIB_FOUND TRUE)
SET(WITH_ZLIB "bundled" CACHE STRING "Use bundled zlib")
ADD_SUBDIRECTORY(zlib)
ENDMACRO()
# MYSQL_CHECK_ZLIB_WITH_COMPRESS
#
# Provides the following configure options:
# WITH_ZLIB_BUNDLED
# If this is set,we use bundled zlib
# If this is not set,search for system zlib.
# if system zlib is not found, use bundled copy
# ZLIB_LIBRARIES, ZLIB_INCLUDE_DIRS
# are set after this macro has run
MACRO (MYSQL_CHECK_ZLIB_WITH_COMPRESS)
IF(WITH_ZLIB STREQUAL "bundled")
MYSQL_USE_BUNDLED_ZLIB()
ELSE()
FIND_PACKAGE(PkgConfig QUIET)
IF(PKG_CONFIG_FOUND AND (COMMAND PKG_GET_VARIABLE) AND (NOT WIN32))
PKG_GET_VARIABLE(ZLIB_ROOT zlib prefix)
ENDIF()
FIND_PACKAGE(ZLIB)
IF(ZLIB_FOUND)
INCLUDE(CheckFunctionExists)
SET(CMAKE_REQUIRED_LIBRARIES ${ZLIB_LIBRARIES})
CHECK_FUNCTION_EXISTS(crc32 HAVE_CRC32)
CHECK_FUNCTION_EXISTS(compressBound HAVE_COMPRESSBOUND)
CHECK_FUNCTION_EXISTS(deflateBound HAVE_DEFLATEBOUND)
SET(CMAKE_REQUIRED_LIBRARIES)
IF(HAVE_CRC32 AND HAVE_COMPRESSBOUND AND HAVE_DEFLATEBOUND)
SET(WITH_ZLIB "system" CACHE STRING
"Which zlib to use (possible values are 'bundled' or 'system')")
ELSE()
SET(ZLIB_FOUND FALSE CACHE INTERNAL "Zlib found but not usable")
MESSAGE(STATUS "system zlib found but not usable")
ENDIF()
ENDIF()
IF(NOT ZLIB_FOUND)
MYSQL_USE_BUNDLED_ZLIB()
ENDIF()
ENDIF()
SET(HAVE_COMPRESS 1)
ENDMACRO()
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