forked from Archive/PX4-Autopilot
110 lines
3.6 KiB
CMake
110 lines
3.6 KiB
CMake
############################################################################
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#
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# Copyright (c) 2015 PX4 Development Team. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name PX4 nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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# cmake include guard
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if(px4_parse_function_args_included)
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return()
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endif(px4_parse_function_args_included)
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set(px4_parse_function_args_included true)
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#=============================================================================
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#
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# px4_parse_function_args
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#
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# This function simplifies usage of the cmake_parse_arguments module.
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# It is intended to be called by other functions.
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#
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# Usage:
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# px4_parse_function_args(
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# NAME <name>
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# [ OPTIONS <list> ]
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# [ ONE_VALUE <list> ]
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# [ MULTI_VALUE <list> ]
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# REQUIRED <list>
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# ARGN <ARGN>)
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#
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# Input:
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# NAME : the name of the calling function
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# OPTIONS : boolean flags
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# ONE_VALUE : single value variables
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# MULTI_VALUE : multi value variables
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# REQUIRED : required arguments
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# ARGN : the function input arguments, typically ${ARGN}
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#
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# Output:
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# The function arguments corresponding to the following are set:
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# ${OPTIONS}, ${ONE_VALUE}, ${MULTI_VALUE}
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#
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# Example:
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# function test()
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# px4_parse_function_args(
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# NAME TEST
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# ONE_VALUE NAME
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# MULTI_VALUE LIST
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# REQUIRED NAME LIST
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# ARGN ${ARGN})
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# message(STATUS "name: ${NAME}")
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# message(STATUS "list: ${LIST}")
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# endfunction()
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#
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# test(NAME "hello" LIST a b c)
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#
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# OUTPUT:
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# name: hello
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# list: a b c
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#
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include(CMakeParseArguments)
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function(px4_parse_function_args)
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cmake_parse_arguments(IN "" "NAME" "OPTIONS;ONE_VALUE;MULTI_VALUE;REQUIRED;ARGN" "${ARGN}")
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cmake_parse_arguments(OUT "${IN_OPTIONS}" "${IN_ONE_VALUE}" "${IN_MULTI_VALUE}" "${IN_ARGN}")
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if (OUT_UNPARSED_ARGUMENTS)
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#message(FATAL_ERROR "${IN_NAME}: unparsed ${OUT_UNPARSED_ARGUMENTS}")
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# TODO: reenable
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endif()
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foreach(arg ${IN_REQUIRED})
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if (NOT OUT_${arg})
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if (NOT "${OUT_${arg}}" STREQUAL "0")
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message(FATAL_ERROR "${IN_NAME} requires argument ${arg}\nARGN: ${IN_ARGN}")
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endif()
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endif()
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endforeach()
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foreach(arg ${IN_OPTIONS} ${IN_ONE_VALUE} ${IN_MULTI_VALUE})
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set(${arg} ${OUT_${arg}} PARENT_SCOPE)
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endforeach()
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endfunction()
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