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47
cmake/FindVala.cmake
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47
cmake/FindVala.cmake
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# - Find Vala
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# This module looks for valac.
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# This module defines the following values:
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# VALA_FOUND
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# VALA_COMPILER
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# VALA_VERSION
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#=============================================================================
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# Copyright Přemysl Janouch 2011
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# 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 are met:
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# * 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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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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# OF SUCH DAMAGE.
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#=============================================================================
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find_program (VALA_COMPILER "valac")
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if (VALA_COMPILER)
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execute_process (COMMAND ${VALA_COMPILER} --version
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OUTPUT_VARIABLE VALA_VERSION)
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string (REGEX MATCH "[.0-9]+" VALA_VERSION "${VALA_VERSION}")
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endif (VALA_COMPILER)
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include (FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS (Vala
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REQUIRED_VARS VALA_COMPILER
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VERSION_VAR VALA_VERSION)
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mark_as_advanced (VALA_COMPILER VALA_VERSION)
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205
cmake/ValaPrecompile.cmake
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205
cmake/ValaPrecompile.cmake
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# - Precompilation of Vala/Genie source files into C sources
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# Makes use of the parallel build ability introduced in Vala 0.11. Derived
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# from a similar module by Jakob Westhoff and the original GNU Make rules.
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# Might be a bit oversimplified.
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#
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# This module defines three functions. The first one:
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#
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# vala_init (id
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# [DIRECTORY dir] - Output directory (binary dir by default)
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# [PACKAGES package...] - Package dependencies
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# [OPTIONS option...] - Extra valac options
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# [CUSTOM_VAPIS file...]) - Custom vapi files to include in the build
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#
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# initializes a single precompilation unit using the given arguments.
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# You can put files into it via the following function:
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#
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# vala_add (id source.vala
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# [DEPENDS source...]) - Vala/Genie source or .vapi dependencies
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#
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# Finally retrieve paths for generated C files by calling:
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#
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# vala_finish (id
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# [SOURCES sources_var] - Input Vala/Genie sources
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# [OUTPUTS outputs_var] - Output C sources
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# [GENERATE_HEADER id.h - Generate id.h and id_internal.h
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# [GENERATE_VAPI id.vapi] - Generate a vapi file
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# [GENERATE_SYMBOLS id.def]]) - Generate a list of public symbols
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#
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#=============================================================================
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# Copyright Přemysl Janouch 2011
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# 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 are met:
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# * 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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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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# OF SUCH DAMAGE.
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#=============================================================================
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find_package (Vala 0.11 REQUIRED)
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include (CMakeParseArguments)
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function (vala_init id)
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set (_multi_value PACKAGES OPTIONS CUSTOM_VAPIS)
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cmake_parse_arguments (arg "" "DIRECTORY" "${_multi_value}" ${ARGN})
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if (arg_DIRECTORY)
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set (directory ${arg_DIRECTORY})
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if (NOT IS_DIRECTORY ${directory})
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file (MAKE_DIRECTORY ${directory})
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endif (NOT IS_DIRECTORY ${directory})
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else (arg_DIRECTORY)
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set (directory ${CMAKE_CURRENT_BINARY_DIR})
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endif (arg_DIRECTORY)
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set (pkg_opts)
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foreach (pkg ${arg_PACKAGES})
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list (APPEND pkg_opts "--pkg=${pkg}")
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endforeach (pkg)
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set (VALA_${id}_DIR "${directory}" PARENT_SCOPE)
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set (VALA_${id}_ARGS ${pkg_opts} ${arg_OPTIONS}
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${arg_CUSTOM_VAPIS} PARENT_SCOPE)
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set (VALA_${id}_SOURCES "" PARENT_SCOPE)
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set (VALA_${id}_OUTPUTS "" PARENT_SCOPE)
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set (VALA_${id}_FAST_VAPI_FILES "" PARENT_SCOPE)
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set (VALA_${id}_FAST_VAPI_ARGS "" PARENT_SCOPE)
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endfunction (vala_init)
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function (vala_add id file)
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cmake_parse_arguments (arg "" "" "DEPENDS" ${ARGN})
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if (NOT IS_ABSOLUTE "${file}")
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set (file "${CMAKE_CURRENT_SOURCE_DIR}/${file}")
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endif (NOT IS_ABSOLUTE "${file}")
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get_filename_component (output_name "${file}" NAME)
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get_filename_component (output_base "${file}" NAME_WE)
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set (output_base "${VALA_${id}_DIR}/${output_base}")
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# XXX: It would be best to have it working without touching the vapi
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# but it appears this cannot be done in CMake.
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add_custom_command (OUTPUT "${output_base}.vapi"
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COMMAND ${VALA_COMPILER} "${file}" "--fast-vapi=${output_base}.vapi"
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COMMAND ${CMAKE_COMMAND} -E touch "${output_base}.vapi"
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DEPENDS "${file}"
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COMMENT "Generating a fast vapi for ${output_name}" VERBATIM)
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set (vapi_opts)
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set (vapi_depends)
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foreach (vapi ${arg_DEPENDS})
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if (NOT IS_ABSOLUTE "${vapi}")
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set (vapi "${VALA_${id}_DIR}/${vapi}.vapi")
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endif (NOT IS_ABSOLUTE "${vapi}")
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list (APPEND vapi_opts "--use-fast-vapi=${vapi}")
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list (APPEND vapi_depends "${vapi}")
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endforeach (vapi)
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add_custom_command (OUTPUT "${output_base}.c"
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COMMAND ${VALA_COMPILER} "${file}" -C ${vapi_opts} ${VALA_${id}_ARGS}
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COMMAND ${CMAKE_COMMAND} -E touch "${output_base}.c"
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DEPENDS "${file}" ${vapi_depends}
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WORKING_DIRECTORY "${VALA_${id}_DIR}"
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COMMENT "Precompiling ${output_name}" VERBATIM)
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set (VALA_${id}_SOURCES ${VALA_${id}_SOURCES}
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"${file}" PARENT_SCOPE)
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set (VALA_${id}_OUTPUTS ${VALA_${id}_OUTPUTS}
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"${output_base}.c" PARENT_SCOPE)
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set (VALA_${id}_FAST_VAPI_FILES ${VALA_${id}_FAST_VAPI_FILES}
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"${output_base}.vapi" PARENT_SCOPE)
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set (VALA_${id}_FAST_VAPI_ARGS ${VALA_${id}_FAST_VAPI_ARGS}
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"--use-fast-vapi=${output_base}.vapi" PARENT_SCOPE)
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endfunction (vala_add)
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function (vala_finish id)
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set (_one_value SOURCES OUTPUTS
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GENERATE_VAPI GENERATE_HEADER GENERATE_SYMBOLS)
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cmake_parse_arguments (arg "" "${_one_value}" "" ${ARGN})
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if (arg_SOURCES)
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set (${arg_SOURCES} ${VALA_${id}_SOURCES} PARENT_SCOPE)
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endif (arg_SOURCES)
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if (arg_OUTPUTS)
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set (${arg_OUTPUTS} ${VALA_${id}_OUTPUTS} PARENT_SCOPE)
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endif (arg_OUTPUTS)
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set (outputs)
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set (export_args)
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if (arg_GENERATE_VAPI)
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if (NOT IS_ABSOLUTE "${arg_GENERATE_VAPI}")
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set (arg_GENERATE_VAPI
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"${VALA_${id}_DIR}/${arg_GENERATE_VAPI}")
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endif (NOT IS_ABSOLUTE "${arg_GENERATE_VAPI}")
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list (APPEND outputs "${arg_GENERATE_VAPI}")
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list (APPEND export_args "--internal-vapi=${arg_GENERATE_VAPI}")
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if (NOT arg_GENERATE_HEADER)
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message (FATAL_ERROR "Header generation required for vapi")
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endif (NOT arg_GENERATE_HEADER)
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endif (arg_GENERATE_VAPI)
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if (arg_GENERATE_SYMBOLS)
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if (NOT IS_ABSOLUTE "${arg_GENERATE_SYMBOLS}")
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set (arg_GENERATE_SYMBOLS
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"${VALA_${id}_DIR}/${arg_GENERATE_SYMBOLS}")
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endif (NOT IS_ABSOLUTE "${arg_GENERATE_SYMBOLS}")
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list (APPEND outputs "${arg_GENERATE_SYMBOLS}")
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list (APPEND export_args "--symbols=${arg_GENERATE_SYMBOLS}")
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if (NOT arg_GENERATE_HEADER)
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message (FATAL_ERROR "Header generation required for symbols")
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endif (NOT arg_GENERATE_HEADER)
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endif (arg_GENERATE_SYMBOLS)
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if (arg_GENERATE_HEADER)
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if (NOT IS_ABSOLUTE "${arg_GENERATE_HEADER}")
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set (arg_GENERATE_HEADER
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"${VALA_${id}_DIR}/${arg_GENERATE_HEADER}")
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endif (NOT IS_ABSOLUTE "${arg_GENERATE_HEADER}")
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get_filename_component (header_path "${arg_GENERATE_HEADER}" PATH)
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get_filename_component (header_name "${arg_GENERATE_HEADER}" NAME_WE)
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set (header_base "${header_path}/${header_name}")
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get_filename_component (header_ext "${arg_GENERATE_HEADER}" EXT)
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list (APPEND outputs
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"${header_base}${header_ext}"
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"${header_base}_internal${header_ext}")
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list (APPEND export_args
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"--header=${header_base}${header_ext}"
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"--internal-header=${header_base}_internal${header_ext}")
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endif (arg_GENERATE_HEADER)
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if (outputs)
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add_custom_command (OUTPUT ${outputs}
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COMMAND ${VALA_COMPILER} -C ${VALA_${id}_ARGS}
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${export_args} ${VALA_${id}_FAST_VAPI_ARGS}
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DEPENDS ${VALA_${id}_FAST_VAPI_FILES}
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COMMENT "Generating vapi/headers/symbols" VERBATIM)
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endif (outputs)
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endfunction (vala_finish id)
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