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# Copyright (c) 2009 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# 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
# This script merges many static libraries into
# one big library on Unix.
SET(TARGET_LOCATION "@TARGET_LOCATION@")
SET(TARGET "@TARGET@")
SET(STATIC_LIBS "@STATIC_LIBS@")
SET(CMAKE_CURRENT_BINARY_DIR "@CMAKE_CURRENT_BINARY_DIR@")
SET(CMAKE_AR "@CMAKE_AR@")
SET(CMAKE_RANLIB "@CMAKE_RANLIB@")
SET(TEMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/merge_archives_${TARGET})
MAKE_DIRECTORY(${TEMP_DIR})
# Extract each archive to its own subdirectory(avoid object filename
# clashes) Since the lib may contain objects with the same name, we first
# list the archive contents, then uniquify the object names as we extract
# them.
FOREACH(LIB ${STATIC_LIBS})
GET_FILENAME_COMPONENT(NAME_NO_EXT ${LIB} NAME_WE)
SET(TEMP_SUBDIR ${TEMP_DIR}/${NAME_NO_EXT})
MAKE_DIRECTORY(${TEMP_SUBDIR})
EXECUTE_PROCESS(
COMMAND ${CMAKE_AR} -t ${LIB}
OUTPUT_VARIABLE LIB_OBJS
)
STRING(REGEX REPLACE "\n" ";" LIB_OBJ_LIST "${LIB_OBJS}")
STRING(REGEX REPLACE ";$" "" LIB_OBJ_LIST "${LIB_OBJ_LIST}")
LIST(LENGTH LIB_OBJ_LIST LENGTH_WITH_DUPS)
SET(LIB_OBJ_LIST_NO_DUPS ${LIB_OBJ_LIST})
LIST(REMOVE_DUPLICATES LIB_OBJ_LIST_NO_DUPS)
LIST(LENGTH LIB_OBJ_LIST_NO_DUPS LENGTH_WITHOUT_DUPS)
IF(LENGTH_WITH_DUPS EQUAL LENGTH_WITHOUT_DUPS)
# Optimization for when lib doesn't actually have duplicate object
# names, we can just extract everything.
EXECUTE_PROCESS(
COMMAND ${CMAKE_AR} -x ${LIB}
WORKING_DIRECTORY ${TEMP_SUBDIR}
)
ELSE()
LIST(SORT LIB_OBJ_LIST)
SET(SAME_OBJ_COUNT 1)
SET(LAST_OBJ_NAME)
FOREACH(OBJ ${LIB_OBJ_LIST})
IF(OBJ STREQUAL LAST_OBJ_NAME)
GET_FILENAME_COMPONENT(OBJ_NO_EXT ${OBJ} NAME_WE)
FILE(RENAME "${TEMP_SUBDIR}/${OBJ}" "${TEMP_SUBDIR}/${OBJ_NO_EXT}.${SAME_OBJ_COUNT}.o")
MATH(EXPR SAME_OBJ_COUNT "${SAME_OBJ_COUNT}+1")
ELSE()
SET(SAME_OBJ_COUNT 1)
ENDIF()
SET(LAST_OBJ_NAME "${OBJ}")
EXECUTE_PROCESS(
COMMAND ${CMAKE_AR} -xN ${SAME_OBJ_COUNT} ${LIB} ${OBJ}
WORKING_DIRECTORY ${TEMP_SUBDIR}
)
ENDFOREACH()
ENDIF()
FILE(GLOB_RECURSE LIB_OBJECTS "${TEMP_SUBDIR}/*.o")
SET(OBJECTS ${OBJECTS} ${LIB_OBJECTS})
ENDFOREACH()
# Use relative paths, makes command line shorter.
GET_FILENAME_COMPONENT(ABS_TEMP_DIR ${TEMP_DIR} ABSOLUTE)
FOREACH(OBJ ${OBJECTS})
FILE(RELATIVE_PATH OBJ ${ABS_TEMP_DIR} ${OBJ})
FILE(TO_NATIVE_PATH ${OBJ} OBJ)
SET(ALL_OBJECTS ${ALL_OBJECTS} ${OBJ})
ENDFOREACH()
FILE(TO_NATIVE_PATH ${TARGET_LOCATION} ${TARGET_LOCATION})
# Now pack the objects into library with ar.
EXECUTE_PROCESS(
COMMAND ${CMAKE_AR} rcs ${TARGET_LOCATION} ${ALL_OBJECTS}
WORKING_DIRECTORY ${TEMP_DIR}
)
# Cleanup
FILE(REMOVE_RECURSE ${TEMP_DIR})
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