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382 lines
12 KiB
382 lines
12 KiB
# ***** BEGIN LICENSE BLOCK *****
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#
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# Copyright 2017 Yzena Tech
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#
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# Licensed under the Apache License, Version 2.0 (the "Apache License")
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# with the following modification; you may not use this file except in
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# compliance with the Apache License and the following modification to it:
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# Section 6. Trademarks. is deleted and replaced with:
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#
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# 6. Trademarks. This License does not grant permission to use the trade
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# names, trademarks, service marks, or product names of the Licensor
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# and its affiliates, except as required to comply with Section 4(c) of
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# the License and to reproduce the content of the NOTICE file.
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#
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# You may obtain a copy of the Apache License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the Apache License with the above modification is
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# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the Apache License for the specific
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# language governing permissions and limitations under the Apache License.
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#
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# The function merge_static_libs() is also under the following copyright and
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# license:
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#
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# Copyright (C) 2012 Modelon AB
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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 BSD style 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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# FMILIB_License.txt file for more details.
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#
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# You should have received a copy of the BSD license along with this program.
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# If not, contact Modelon AB <http://www.modelon.com>.
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#
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# ****** END LICENSE BLOCK ******
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# Make sure we save this.
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set(SCRIPT_DIR "${CMAKE_CURRENT_SOURCE_DIR}" CACHE INTERNAL "Directory of the merge script")
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set(STATIC_LIBS_LIST "${STATIC_LIBS_LIST}" CACHE INTERNAL "List of libraries to merge")
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set(STATIC_LIBS_NAMES "${STATIC_LIBS_NAMES}" CACHE INTERNAL "List of library target names")
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set(FUNCTIONS_DIR "${CMAKE_CURRENT_LIST_DIR}" CACHE INTERNAL "Directory of the functions.cmake file")
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# For some reason, we get stupid CMake warnings.
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cmake_policy(SET CMP0026 NEW)
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function(file_size var filename)
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file(READ "${filename}" content HEX)
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string(LENGTH "${content}" content_length)
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math(EXPR content_length "${content_length} / 2")
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set(${var} ${content_length} PARENT_SCOPE)
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endfunction()
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# Generates a C file with a char array that contains the contents of a file,
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# which can then be used as a string in C source. This is useful, for example,
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# to turn OpenGL shaders, which should be in their own files, into C strings
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# contained with source files that can then be compiled and inserted into an
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# executable.
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# Params: infile is the input file (the file that will be a turned into a char
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# array; outfile is the output file (the file with the C array); array_name is
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# the name of the array; target is the CMake target that other targets can then
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# depend on; and start_line is the line in infile that will be the first line
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# in the array, which is useful for excluding header comments.
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function(create_data_target infile outfile array_name len_name target start_line)
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file_size(file_len "${infile}")
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set(script "${CMAKE_CURRENT_BINARY_DIR}/${target}_script.cmake")
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configure_file("${FUNCTIONS_DIR}/gen_data.cmake.in" "${script}" @ONLY)
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add_custom_command(OUTPUT "${outfile}" COMMAND "${CMAKE_COMMAND}" -P "${script}")
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add_custom_target("${target}_script" DEPENDS "${outfile}")
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add_library("${target}" "${outfile}")
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add_dependencies("${target}" "${target}_script")
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endfunction(create_data_target)
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# Creates a symlink named "link" that points to "target".
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function(create_symlink link target)
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add_custom_command(
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TARGET "${target}" POST_BUILD
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COMMAND "${CMAKE_COMMAND}" -E create_symlink "$<TARGET_FILE:${target}>" "${link}"
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)
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endfunction(create_symlink)
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function(static_lib_path var lib_output_name)
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# Build the path.
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string(CONCAT LIB_PATH
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"${CMAKE_CURRENT_BINARY_DIR}/"
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"${CMAKE_STATIC_LIBRARY_PREFIX}"
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"${lib_output_name}"
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"${CMAKE_STATIC_LIBRARY_SUFFIX}")
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# Set the variable in parent scope.
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set("${var}" "${LIB_PATH}" PARENT_SCOPE)
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endfunction(static_lib_path)
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# Adds a library to the list to merge.
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function(merge_lib name output)
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# Set the target name.
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list(APPEND STATIC_LIBS_NAMES "${name}")
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set(STATIC_LIBS_NAMES "${STATIC_LIBS_NAMES}" CACHE INTERNAL "List of library target names")
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# Get the path.
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static_lib_path(LIB_PATH "${output}")
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list(APPEND STATIC_LIBS_LIST "${LIB_PATH}")
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set(STATIC_LIBS_LIST "${STATIC_LIBS_LIST}" CACHE INTERNAL "List of libraries to merge")
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endfunction(merge_lib)
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# Merge_static_libs(outlib) merges all libs in STATIC_LIB_NAMES into a single
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# static library named outlib.
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function(merge_libs outlib)
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# Get the names of all libraries to link.
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set(link_libs ${ARGN})
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# Create a dummy file that the target will depend on
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set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/${outlib}_dummy.c)
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file(WRITE ${dummyfile} "// ${dummyfile}")
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# Add the output library.
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add_library(${outlib} STATIC ${dummyfile})
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static_lib_path(outfile "${outlib}")
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# Make sure all libs are static.
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foreach(lib ${STATIC_LIBS_NAMES})
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get_target_property(libtype ${lib} TYPE)
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if(NOT libtype STREQUAL "STATIC_LIBRARY")
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message(FATAL_ERROR "Merge_static_libs can only process static libraries")
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endif()
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endforeach()
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# If we are on a multiconfig build system...
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if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
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# Generate a list for each config type.
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foreach(lib ${STATIC_LIBS_LIST})
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foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES})
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get_target_property("libfile_${CONFIG_TYPE}" ${lib} "LOCATION_${CONFIG_TYPE}")
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list(APPEND libfiles_${CONFIG_TYPE} ${libfile_${CONFIG_TYPE}})
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endforeach()
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endforeach()
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# Dedup the lists.
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foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES})
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list(REMOVE_DUPLICATES libfiles_${CONFIG_TYPE})
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set(libfiles ${libfiles} ${libfiles_${CONFIG_TYPE}})
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endforeach()
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endif()
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# Just to be sure: cleanup from duplicates
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list(REMOVE_DUPLICATES STATIC_LIBS_LIST)
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set(STATIC_LIBS_LIST "${STATIC_LIBS_LIST}" CACHE INTERNAL "List of libraries to merge")
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# Now the easy part for MSVC and for MAC
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if(MSVC)
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# lib.exe does the merging of libraries just need to conver the list into string
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foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES})
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set(flags "")
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foreach(lib ${libfiles_${CONFIG_TYPE}})
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set(flags "${flags} ${lib}")
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endforeach()
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string(TOUPPER "STATIC_LIBRARY_FLAGS_${CONFIG_TYPE}" PROPNAME)
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set_target_properties(${outlib} PROPERTIES ${PROPNAME} "${flags}")
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endforeach()
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elseif(APPLE)
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# Use OSX's libtool to merge archives.
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# We can't handle multiconfigs.
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if(multiconfig)
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message(FATAL_ERROR "Multiple configurations are not supported")
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endif()
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# Get the location of the library.
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get_target_property(outfile ${outlib} LOCATION)
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# Add the libtool command to merge.
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add_custom_command(TARGET ${outlib} POST_BUILD
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COMMAND rm ${outfile}
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COMMAND /usr/bin/libtool -static -o ${outfile} ${STATIC_LIBS_LIST})
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else()
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# General UNIX - need to "ar -x" and then "ar -ru"
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# We can't handle multiconfigs.
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if(multiconfig)
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message(FATAL_ERROR "Multiple configurations are not supported")
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endif()
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# Loop over the files.
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list(LENGTH STATIC_LIBS_LIST len1)
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math(EXPR len2 "${len1} - 1")
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foreach(val RANGE ${len2})
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# Get the library and its name from the lists.
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list(GET STATIC_LIBS_LIST ${val} lib)
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list(GET STATIC_LIBS_NAMES ${val} name)
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# objlistfile will contain the list of object files for the library.
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set(objlistfile "${lib}.objlist")
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set(objlistfile2 "${objlistfile}2")
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set(objdir "${lib}.objdir")
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set(objlistcmake "${objlistfile}.cmake")
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set(objtarget "${name}_target")
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# We only need to extract files once.
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if(${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cmake.check_cache IS_NEWER_THAN ${objlistcmake})
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#---------------------------------
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# Create a file to run in CMake later.
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string(CONCAT file_content
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"# Extract object files from the library
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message(STATUS \"Extracting object files from ${lib}\")
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execute_process(COMMAND ${CMAKE_AR} -x ${lib}
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WORKING_DIRECTORY ${objdir})
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# save the list of object files
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execute_process(COMMAND find ${objdir} -type f
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OUTPUT_FILE ${objlistfile}
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WORKING_DIRECTORY ${objdir})")
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FILE(WRITE "${objlistcmake}" "${file_content}")
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#---------------------------------
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# Make sure the obj directory exists.
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file(MAKE_DIRECTORY "${objdir}")
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endif()
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# Add the created file above as a command to run.
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add_custom_command(
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OUTPUT "${objlistfile}"
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COMMAND ${CMAKE_COMMAND} -P ${objlistcmake}
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DEPENDS "${name}")
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# Copy the list. This is necessary to avoid some errors.
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add_custom_target("${objtarget}"
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COMMAND ${CMAKE_COMMAND} -E copy ${objlistfile} ${objlistfile2}
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DEPENDS "${objlistfile}"
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BYPRODUCTS "${objlistfile2}")
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# Add the files in the list of object files to the list of files.
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list(APPEND extrafiles "${objlistfile2}")
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# Add a dependency from the output lib to the one we're processing.
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add_dependencies("${outlib}" "${objtarget}" "${name}")
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endforeach()
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# Run the merge.
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add_custom_command(TARGET "${outlib}"
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POST_BUILD
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COMMAND ${CMAKE_AR} r ${outfile} `cat ${extrafiles}`
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COMMAND ${CMAKE_RANLIB} "${outfile}")
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endif()
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# Link the needed libraries.
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target_link_libraries("${outlib}" "${link_libs}")
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# Install the resulting library.
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install(TARGETS "${outlib}" ARCHIVE DESTINATION lib/)
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# Make sure to erase the lists.
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set(STATIC_LIBS_NAMES "" CACHE INTERNAL "List of library target names")
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set(STATIC_LIBS_LIST "" CACHE INTERNAL "List of libraries to merge")
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endfunction(merge_libs)
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function(create_test_target target ext)
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# Create an executable, link libs to it, and add it as a test.
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add_executable("${target}" "${target}.${ext}")
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target_link_libraries("${target}" "${ARGN}")
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endfunction(create_test_target)
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function(create_test_from_target target test_num)
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add_test(NAME "${target}${test_num}" COMMAND "$<TARGET_FILE:${target}>" ${ARGN})
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endfunction(create_test_from_target)
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function(create_test target)
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create_test_target("${target}" "c" "${ARGN}")
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add_test(NAME "${target}" COMMAND "$<TARGET_FILE:${target}>")
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endfunction()
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function(create_test_cpp target)
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create_test_target("${target}" "cpp" "${ARGN}")
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add_test(NAME "${target}" COMMAND "$<TARGET_FILE:${target}>")
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endfunction()
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function(create_shared_library name output_name src doinstall)
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# Add the library and link its dependencies.
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add_library("${name}" SHARED "${src}")
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target_link_libraries("${name}" "${ARGN}")
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# Set its output name.
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set_target_properties("${name}"
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PROPERTIES
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OUTPUT_NAME "${output_name}")
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# Install it, if necessary.
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if(doinstall)
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install(TARGETS "${name}" LIBRARY DESTINATION lib/)
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endif(doinstall)
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endfunction(create_shared_library)
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function(create_static_library name output_name src doinstall)
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# Add the library and link its dependencies.
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add_library("${name}" STATIC "${src}")
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target_link_libraries("${name}" "${ARGN}")
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# Set its output name.
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set_target_properties("${name}"
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PROPERTIES
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OUTPUT_NAME "${output_name}")
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# Install it, if necessary.
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if(doinstall)
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install(TARGETS "${name}" ARCHIVE DESTINATION lib/)
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endif(doinstall)
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endfunction(create_static_library)
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function(create_pic_library name output_name src doinstall)
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# Add the library and link its dependencies.
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add_library("${name}" STATIC "${src}")
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target_link_libraries("${name}" "${ARGN}")
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# Set its output name.
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set_target_properties("${name}"
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PROPERTIES
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OUTPUT_NAME "${output_name}"
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POSITION_INDEPENDENT_CODE ON)
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# Install it, if necessary.
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if(doinstall)
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install(TARGETS "${name}" ARCHIVE DESTINATION lib/)
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endif(doinstall)
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endfunction(create_pic_library)
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function(create_merge_library name src)
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# Create a pic library.
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create_pic_library("${name}" "${name}" "${src}" NO "${ARGN}")
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# Put the lib in the list to merge.
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merge_lib("${name}" "${name}")
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endfunction(create_merge_library)
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function(create_all_libraries shared_name static_name pic_name output_name src doinstall)
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# Create libraries of all three types.
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create_shared_library("${shared_name}" "${output_name}" "${src}" "${doinstall}" "${ARGN}")
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create_static_library("${static_name}" "${output_name}" "${src}" "${doinstall}" "${ARGN}")
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create_pic_library("${pic_name}" "${output_name}_pic" "${src}" "${doinstall}" "${ARGN}")
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endfunction(create_all_libraries)
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