315 lines
11 KiB
CMake
315 lines
11 KiB
CMake
# Copyright (c) 2009, 2017, Oracle and/or its affiliates. All rights reserved.
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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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# This file exports macros that emulate some functionality found in GNU libtool
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# on Unix systems. One such feature is convenience libraries. In this context,
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# convenience library is a static library that can be linked to shared library
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# On systems that force position-independent code, linking into shared library
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# normally requires compilation with a special flag (often -fPIC). To enable
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# linking static libraries to shared, we compile source files that come into
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# static library with the PIC flag (${CMAKE_SHARED_LIBRARY_C_FLAGS} in CMake)
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# Some systems, like Windows or OSX do not need special compilation (Windows
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# never uses PIC and OSX always uses it).
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#
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# The intention behind convenience libraries is simplify the build and to reduce
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# excessive recompiles.
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# Except for convenience libraries, this file provides macros to merge static
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# libraries (we need it for mysqlclient) and to create shared library out of
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# convenience libraries(again, for mysqlclient)
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# Important global flags
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# - WITH_PIC : If set, it is assumed that everything is compiled as position
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# independent code (that is CFLAGS/CMAKE_C_FLAGS contain -fPIC or equivalent)
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# If defined, ADD_CONVENIENCE_LIBRARY does not add PIC flag to compile flags
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#
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# - DISABLE_SHARED: If set, it is assumed that shared libraries are not produced
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# during the build. ADD_CONVENIENCE_LIBRARY does not add anything to compile flags
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GET_FILENAME_COMPONENT(MYSQL_CMAKE_SCRIPT_DIR ${CMAKE_CURRENT_LIST_FILE} PATH)
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IF(WIN32 OR APPLE OR WITH_PIC OR DISABLE_SHARED OR NOT CMAKE_SHARED_LIBRARY_C_FLAGS)
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SET(_SKIP_PIC 1)
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ENDIF()
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INCLUDE(${MYSQL_CMAKE_SCRIPT_DIR}/cmake_parse_arguments.cmake)
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# CREATE_EXPORT_FILE (VAR target api_functions)
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# Internal macro, used on Windows to export API functions as dllexport.
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# Returns a list of extra files that should be linked into the library
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# (in the variable pointed to by VAR).
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MACRO(CREATE_EXPORT_FILE VAR TARGET API_FUNCTIONS)
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SET(DUMMY ${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_dummy.cc)
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CONFIGURE_FILE_CONTENT("" ${DUMMY})
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IF(WIN32)
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SET(EXPORTS ${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_exports.def)
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SET(CONTENT "EXPORTS\n")
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FOREACH(FUNC ${API_FUNCTIONS})
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SET(CONTENT "${CONTENT} ${FUNC}\n")
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ENDFOREACH()
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CONFIGURE_FILE_CONTENT(${CONTENT} ${EXPORTS})
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SET(${VAR} ${DUMMY} ${EXPORTS})
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ELSE()
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SET(${VAR} ${DUMMY})
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ENDIF()
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ENDMACRO()
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# ADD_CONVENIENCE_LIBRARY(name source1...sourceN)
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# Create static library that can be merged with other libraries.
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# On systems that force position-independent code, adds -fPIC or
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# equivalent flag to compile flags.
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MACRO(ADD_CONVENIENCE_LIBRARY)
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SET(TARGET ${ARGV0})
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SET(SOURCES ${ARGN})
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LIST(REMOVE_AT SOURCES 0)
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ADD_LIBRARY(${TARGET} STATIC ${SOURCES})
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IF(NOT _SKIP_PIC)
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SET_TARGET_PROPERTIES(${TARGET} PROPERTIES POSITION_INDEPENDENT_CODE ON)
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ENDIF()
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# Collect all static libraries in the same directory
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SET_TARGET_PROPERTIES(${TARGET} PROPERTIES
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ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/archive_output_directory)
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# Keep track of known convenience libraries, in a global scope.
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SET(KNOWN_CONVENIENCE_LIBRARIES
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${KNOWN_CONVENIENCE_LIBRARIES} ${TARGET} CACHE INTERNAL "" FORCE)
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# Generate a cmake file which will save the name of the library.
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CONFIGURE_FILE(
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${MYSQL_CMAKE_SCRIPT_DIR}/save_archive_location.cmake.in
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${CMAKE_BINARY_DIR}/archive_output_directory/lib_location_${TARGET}.cmake
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@ONLY)
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ADD_CUSTOM_COMMAND(TARGET ${TARGET} POST_BUILD
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COMMAND ${CMAKE_COMMAND}
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-DTARGET_NAME=${TARGET}
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-DTARGET_LOC=$<TARGET_FILE:${TARGET}>
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-DCFG_INTDIR=${CMAKE_CFG_INTDIR}
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-P ${CMAKE_BINARY_DIR}/archive_output_directory/lib_location_${TARGET}.cmake
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)
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ENDMACRO()
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# An IMPORTED library can also be merged.
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MACRO(ADD_IMPORTED_LIBRARY TARGET LOC)
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ADD_LIBRARY(${TARGET} STATIC IMPORTED)
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SET_TARGET_PROPERTIES(${TARGET} PROPERTIES IMPORTED_LOCATION ${LOC})
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SET(KNOWN_CONVENIENCE_LIBRARIES
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${KNOWN_CONVENIENCE_LIBRARIES} ${TARGET} CACHE INTERNAL "" FORCE)
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CONFIGURE_FILE(
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${MYSQL_CMAKE_SCRIPT_DIR}/save_archive_location.cmake.in
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${CMAKE_BINARY_DIR}/archive_output_directory/lib_location_${TARGET}.cmake
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@ONLY)
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ADD_CUSTOM_TARGET(${TARGET}_location
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COMMAND ${CMAKE_COMMAND}
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-DTARGET_NAME=${TARGET}
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-DTARGET_LOC=$<TARGET_FILE:${TARGET}>
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-DCFG_INTDIR=${CMAKE_CFG_INTDIR}
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-P ${CMAKE_BINARY_DIR}/archive_output_directory/lib_location_${TARGET}.cmake
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)
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ENDMACRO()
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# Write content to file, using CONFIGURE_FILE
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# The advantage compared to FILE(WRITE) is that timestamp
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# does not change if file already has the same content
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MACRO(CONFIGURE_FILE_CONTENT content file)
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SET(CMAKE_CONFIGURABLE_FILE_CONTENT
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"${content}\n")
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CONFIGURE_FILE(
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${MYSQL_CMAKE_SCRIPT_DIR}/configurable_file_content.in
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${file}
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@ONLY)
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ENDMACRO()
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# Create libs from libs.
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# Merges static libraries, creates shared libraries out of convenience libraries.
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MACRO(MERGE_LIBRARIES_SHARED)
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MYSQL_PARSE_ARGUMENTS(ARG
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"EXPORTS;OUTPUT_NAME;COMPONENT"
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"SKIP_INSTALL"
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${ARGN}
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)
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LIST(GET ARG_DEFAULT_ARGS 0 TARGET)
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SET(LIBS ${ARG_DEFAULT_ARGS})
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LIST(REMOVE_AT LIBS 0)
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SET(LIBTYPE SHARED)
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# check for non-PIC libraries
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IF(NOT _SKIP_PIC)
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FOREACH(LIB ${LIBS})
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GET_TARGET_PROPERTY(${LIB} TYPE LIBTYPE)
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IF(LIBTYPE STREQUAL "STATIC_LIBRARY")
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GET_TARGET_PROPERTY(LIB COMPILE_FLAGS LIB_COMPILE_FLAGS)
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IF(NOT LIB_COMPILE_FLAGS MATCHES "<PIC_FLAG>")
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MESSAGE(FATAL_ERROR
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"Attempted to link non-PIC static library ${LIB} to shared library ${TARGET}\n"
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"Please use ADD_CONVENIENCE_LIBRARY, instead of ADD_LIBRARY for ${LIB}"
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)
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ENDIF()
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ENDIF()
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ENDFOREACH()
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ENDIF()
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CREATE_EXPORT_FILE(SRC ${TARGET} "${ARG_EXPORTS}")
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IF(UNIX)
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# Mark every export as explicitly needed, so that ld won't remove the .a files
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# containing them. This has a similar effect as --Wl,--no-whole-archive,
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# but is more focused.
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FOREACH(SYMBOL ${ARG_EXPORTS})
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IF(APPLE)
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SET(export_link_flags "${export_link_flags} -Wl,-u,_${SYMBOL}")
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ELSE()
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SET(export_link_flags "${export_link_flags} -Wl,-u,${SYMBOL}")
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ENDIF()
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ENDFOREACH()
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ENDIF()
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IF(NOT ARG_SKIP_INSTALL)
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ADD_VERSION_INFO(${TARGET} SHARED SRC)
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ENDIF()
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ADD_LIBRARY(${TARGET} ${LIBTYPE} ${SRC})
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TARGET_LINK_LIBRARIES(${TARGET} ${LIBS})
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IF(ARG_OUTPUT_NAME)
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SET_TARGET_PROPERTIES(
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${TARGET} PROPERTIES OUTPUT_NAME "${ARG_OUTPUT_NAME}")
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ENDIF()
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SET_TARGET_PROPERTIES(
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${TARGET} PROPERTIES LINK_FLAGS "${export_link_flags}")
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IF(NOT ARG_SKIP_INSTALL)
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IF(ARG_COMPONENT)
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SET(COMP COMPONENT ${ARG_COMPONENT})
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ENDIF()
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MYSQL_INSTALL_TARGETS(${TARGET} DESTINATION "${INSTALL_LIBDIR}" ${COMP})
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ENDIF()
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SET_TARGET_PROPERTIES(${TARGET} PROPERTIES LINK_INTERFACE_LIBRARIES "")
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ENDMACRO()
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FUNCTION(GET_DEPENDEND_OS_LIBS target result)
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SET(deps ${${target}_LIB_DEPENDS})
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IF(deps)
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FOREACH(lib ${deps})
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# Filter out keywords for used for debug vs optimized builds
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IF(NOT lib MATCHES "general" AND
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NOT lib MATCHES "debug" AND
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NOT lib MATCHES "optimized")
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LIST(FIND KNOWN_CONVENIENCE_LIBRARIES ${lib} FOUNDIT)
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IF(FOUNDIT LESS 0)
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SET(ret ${ret} ${lib})
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ENDIF()
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ENDIF()
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ENDFOREACH()
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ENDIF()
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SET(${result} ${ret} PARENT_SCOPE)
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ENDFUNCTION()
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MACRO(MERGE_CONVENIENCE_LIBRARIES)
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MYSQL_PARSE_ARGUMENTS(ARG
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"OUTPUT_NAME;COMPONENT"
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"SKIP_INSTALL"
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${ARGN}
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)
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LIST(GET ARG_DEFAULT_ARGS 0 TARGET)
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SET(LIBS ${ARG_DEFAULT_ARGS})
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LIST(REMOVE_AT LIBS 0)
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SET(SOURCE_FILE
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${CMAKE_BINARY_DIR}/archive_output_directory/${TARGET}_depends.c)
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ADD_LIBRARY(${TARGET} STATIC ${SOURCE_FILE})
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IF(ARG_OUTPUT_NAME)
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SET_TARGET_PROPERTIES(${TARGET} PROPERTIES OUTPUT_NAME "${ARG_OUTPUT_NAME}")
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ENDIF()
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# Collect all static libraries in the same directory
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SET_TARGET_PROPERTIES(${TARGET} PROPERTIES
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ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/archive_output_directory)
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# Go though the list of libraries.
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# Known convenience libraries should have type "STATIC_LIBRARY"
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# We assume that that unknown libraries (type "LIB_TYPE-NOTFOUND")
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# are operating system libraries, to be linked with TARGET
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SET(OSLIBS)
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SET(MYLIBS)
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FOREACH(LIB ${LIBS})
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GET_TARGET_PROPERTY(LIB_TYPE ${LIB} TYPE)
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IF(LIB_TYPE STREQUAL "STATIC_LIBRARY")
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LIST(FIND KNOWN_CONVENIENCE_LIBRARIES ${LIB} FOUNDIT)
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IF(FOUNDIT LESS 0)
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MESSAGE(STATUS "Known libs : ${KNOWN_CONVENIENCE_LIBRARIES}")
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MESSAGE(FATAL_ERROR "Unknown static library ${LIB} FOUNDIT ${FOUNDIT}")
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ELSE()
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ADD_DEPENDENCIES(${TARGET} ${LIB})
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GET_TARGET_PROPERTY(loc ${LIB} IMPORTED_LOCATION)
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IF(loc)
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ADD_DEPENDENCIES(${TARGET} ${LIB}_location)
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ENDIF()
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LIST(APPEND MYLIBS ${LIB})
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GET_DEPENDEND_OS_LIBS(${LIB} LIB_OSLIBS)
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IF(LIB_OSLIBS)
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# MESSAGE(STATUS "GET_DEPENDEND_OS_LIBS ${LIB} : ${LIB_OSLIBS}")
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LIST(APPEND OSLIBS ${LIB_OSLIBS})
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ENDIF()
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ENDIF()
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ELSE()
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# 3rd party library like libz.so. Make sure that everything
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# that links to our library links to this one as well.
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LIST(APPEND OSLIBS ${LIB})
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ENDIF()
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# MESSAGE(STATUS "LIB ${LIB} LIB_TYPE ${LIB_TYPE}")
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ENDFOREACH()
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IF(OSLIBS)
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LIST(REMOVE_DUPLICATES OSLIBS)
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TARGET_LINK_LIBRARIES(${TARGET} ${OSLIBS})
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MESSAGE(STATUS "Library ${TARGET} depends on OSLIBS ${OSLIBS}")
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ENDIF()
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# Make the generated dummy source file depended on all static input
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# libs. If input lib changes,the source file is touched
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# which causes the desired effect (relink).
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ADD_CUSTOM_COMMAND(
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OUTPUT ${SOURCE_FILE}
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COMMAND ${CMAKE_COMMAND} -E touch ${SOURCE_FILE}
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DEPENDS ${MYLIBS}
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)
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MESSAGE(STATUS "MERGE_CONVENIENCE_LIBRARIES TARGET ${TARGET}")
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MESSAGE(STATUS "MERGE_CONVENIENCE_LIBRARIES LIBS ${LIBS}")
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MESSAGE(STATUS "MERGE_CONVENIENCE_LIBRARIES MYLIBS ${MYLIBS}")
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CONFIGURE_FILE(
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${MYSQL_CMAKE_SCRIPT_DIR}/merge_archives.cmake.in
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${CMAKE_BINARY_DIR}/archive_output_directory/lib_merge_${TARGET}.cmake
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@ONLY)
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ADD_CUSTOM_COMMAND(TARGET ${TARGET} POST_BUILD
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COMMAND ${CMAKE_COMMAND}
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-DTARGET_NAME=${TARGET}
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-DTARGET_LOC=$<TARGET_FILE:${TARGET}>
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-DCFG_INTDIR=${CMAKE_CFG_INTDIR}
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-P ${CMAKE_BINARY_DIR}/archive_output_directory/lib_merge_${TARGET}.cmake
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COMMENT "Merging library ${TARGET}"
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)
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IF(NOT ARG_SKIP_INSTALL)
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IF(ARG_COMPONENT)
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SET(COMP COMPONENT ${ARG_COMPONENT})
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ENDIF()
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MYSQL_INSTALL_TARGETS(${TARGET} DESTINATION "${INSTALL_LIBDIR}" ${COMP})
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ENDIF()
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ENDMACRO()
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