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Diffstat (limited to 'cmake/zlib.cmake')
| -rw-r--r-- | cmake/zlib.cmake | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/cmake/zlib.cmake b/cmake/zlib.cmake new file mode 100644 index 00000000..628bbf15 --- /dev/null +++ b/cmake/zlib.cmake @@ -0,0 +1,62 @@ +# 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_DIR ${CMAKE_SOURCE_DIR}/zlib ${CMAKE_BINARY_DIR}/zlib) + SET(BUILD_BUNDLED_ZLIB 1) + SET(ZLIB_LIBRARY zlib CACHE INTERNAL "Bundled zlib library") + 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 bindled zlib +# If this is not set,search for system zlib. +# if system zlib is not found, use bundled copy +# ZLIB_LIBRARIES, ZLIB_INCLUDE_DIR and ZLIB_SOURCES +# are set after this macro has run + +MACRO (MYSQL_CHECK_ZLIB_WITH_COMPRESS) + + IF(WITH_ZLIB STREQUAL "bundled") + MYSQL_USE_BUNDLED_ZLIB() + ELSE() + INCLUDE(FindZLIB) + IF(ZLIB_FOUND) + INCLUDE(CheckFunctionExists) + SET(CMAKE_REQUIRED_LIBRARIES z) + 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')") + SET(ZLIB_SOURCES "") + 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() |