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# Copyright (C) 2009 Sun Microsystems, Inc
#
# 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 02110-1301 USA
# Merge static libraries.
MACRO(MERGE_STATIC_LIBS TARGET OUTPUT_NAME LIBS_TO_MERGE)
# To produce a library we need at least one source file.
# It is created by ADD_CUSTOM_COMMAND below and will helps
# also help to track dependencies.
SET(SOURCE_FILE ${CMAKE_CURRENT_BINARY_DIR}/${TARGET}_depends.c)
ADD_LIBRARY(${TARGET} STATIC ${SOURCE_FILE})
SET_TARGET_PROPERTIES(${TARGET} PROPERTIES OUTPUT_NAME ${OUTPUT_NAME})
FOREACH(LIB ${LIBS_TO_MERGE})
GET_TARGET_PROPERTY(LIB_LOCATION ${LIB} LOCATION)
GET_TARGET_PROPERTY(LIB_TYPE ${LIB} TYPE)
IF(NOT LIB_LOCATION)
# 3rd party library like libz.so. Make sure that everything
# that links to our library links to this one as well.
TARGET_LINK_LIBRARIES(${TARGET} ${LIB})
ELSE()
# This is a target in current project
# (can be a static or shared lib)
IF(LIB_TYPE STREQUAL "STATIC_LIBRARY")
SET(STATIC_LIBS ${STATIC_LIBS} ${LIB_LOCATION})
ADD_DEPENDENCIES(${TARGET} ${LIB})
ELSE()
# This is a shared library our static lib depends on.
TARGET_LINK_LIBRARIES(${TARGET} ${LIB})
ENDIF()
ENDIF()
ENDFOREACH()
# Make the generated dummy source file depended on all static input
# libs. If input lib changes,the source file is touched
# which causes the desired effect (relink).
ADD_CUSTOM_COMMAND(
OUTPUT ${SOURCE_FILE}
COMMAND ${CMAKE_COMMAND} -E touch ${SOURCE_FILE}
DEPENDS ${STATIC_LIBS})
IF(MSVC)
# To merge libs, just pass them to lib.exe command line.
SET(LINKER_EXTRA_FLAGS "")
FOREACH(LIB ${STATIC_LIBS})
SET(LINKER_EXTRA_FLAGS "${LINKER_EXTRA_FLAGS} ${LIB}")
ENDFOREACH()
SET_TARGET_PROPERTIES(${TARGET} PROPERTIES STATIC_LIBRARY_FLAGS
"${LINKER_EXTRA_FLAGS}")
ELSE()
GET_TARGET_PROPERTY(TARGET_LOCATION ${TARGET} LOCATION)
IF(APPLE)
# Use OSX's libtool to merge archives (ihandles universal
# binaries properly)
ADD_CUSTOM_COMMAND(TARGET ${TARGET} POST_BUILD
COMMAND rm ${TARGET_LOCATION}
COMMAND /usr/bin/libtool -static -o ${TARGET_LOCATION}
${STATIC_LIBS}
)
ELSE()
# Generic Unix, Cygwin or MinGW. In post-build step, call
# script, that extracts objects from archives with "ar x"
# and repacks them with "ar r"
SET(TARGET ${TARGET})
CONFIGURE_FILE(
${CMAKE_SOURCE_DIR}/cmake/merge_archives_unix.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/merge_archives_${TARGET}.cmake
@ONLY
)
ADD_CUSTOM_COMMAND(TARGET ${TARGET} POST_BUILD
COMMAND rm ${TARGET_LOCATION}
COMMAND ${CMAKE_COMMAND} -P
${CMAKE_CURRENT_BINARY_DIR}/merge_archives_${TARGET}.cmake
)
ENDIF()
ENDIF()
ENDMACRO()
# Convert static library to shared
MACRO(STATIC_TO_SHARED STATIC_LIB SHARED_LIB EXPORTS_FILE)
IF(NOT MSVC)
MESSAGE(FATAL_ERROR
"Cannot convert static ${STATIC_LIB} to shared ${TARGET} library."
)
ENDIF()
# Need one source file.
SET(SOURCE_FILE ${CMAKE_CURRENT_BINARY_DIR}/${SHARED_LIB}_dummy.c)
ADD_CUSTOM_COMMAND(
OUTPUT ${SOURCE_FILE}
COMMAND ${CMAKE_COMMAND} -E touch ${SOURCE_FILE}
)
ADD_LIBRARY(${SHARED_LIB} SHARED ${SOURCE_FILE} ${EXPORTS_FILE})
TARGET_LINK_LIBRARIES(${SHARED_LIB} ${STATIC_LIB})
ENDMACRO()
MACRO(SET_TARGET_SOURCEDIR TARGET)
SET(${TARGET}_SOURCEDIR ${CMAKE_CURRENT_SOURCE_DIR} CACHE INTERNAL "source directory for a target")
ENDMACRO()
# Handy macro to use when source projects maybe used somewhere else
# For example, embedded or client library may recompile mysys sources
# In such cases, using absolute names in ADD_LIBRARY has the advantage that
# GET_TARGET_PROPERTY(xxx SOURCES) also returns absolute names, so there is
# no need to know the base directory of a target.
MACRO(USE_ABSOLUTE_FILENAMES FILELIST)
# Use absolute file paths for sources
# It helps when building embedded where we need to
# sources files for the plugin to recompile.
SET(RESOLVED_PATHS)
FOREACH(FILE ${${FILELIST}})
GET_FILENAME_COMPONENT(ABSOLUTE_PATH ${FILE} ABSOLUTE)
LIST(APPEND RESOLVED_PATHS ${ABSOLUTE_PATH})
ENDFOREACH()
SET(${FILELIST} ${RESOLVED_PATHS})
ENDMACRO()
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