mirror of
https://github.com/panda3d/panda3d.git
synced 2025-10-04 10:54:24 -04:00
cmake: Reorganize macros, and cleanup related files (add docs, etc)
This commit is contained in:
kestred
parent
3fa270b302
commit
c579f87007
@ -3,18 +3,25 @@
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cmake_minimum_required(VERSION 2.8.4)
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project(Panda3D)
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# Set Panda's CMake module path
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# Add generic modules to cmake module path,
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# and add Panda3D specific modules to cmake module path
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/macros/")
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# This is where dtool_config.h gets generated.
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# Include global modules
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include(AutoInclude) # Implements automatic include_directories finding
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include(AddBisonTarget) # Defines add_bison_target function
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include(CompositeSources) # Defines composite_sources function
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include(ConfigPackage) # Defines config_package function
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include(Interrogate) # Defines target_interrogate AND add_python_module
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# Add the include path for source and header files generated by CMake
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include_directories("${CMAKE_BINARY_DIR}")
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# Configure Panda3D
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include(dtool/PandaMacros.cmake)
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include(dtool/PandaVersion.cmake)
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include(dtool/Packages.cmake)
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include(dtool/Package.cmake)
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include(dtool/Config.cmake)
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include(dtool/Interrogate.cmake)
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# Determine which trees to build.
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option(BUILD_DTOOL "Build the dtool source tree." ON)
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73
cmake/macros/AddBisonTarget.cmake
Normal file
73
cmake/macros/AddBisonTarget.cmake
Normal file
@ -0,0 +1,73 @@
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# Filename: AddBisonTarget.cmake
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# Description: This file defines the function add_bison_target which instructs
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# cmake to use bison on an input .yxx file. If bison is not available on
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# the system, add_bison_target tries to use .prebuilt .cxx files instead.
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#
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# Usage:
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# add_bison_target(output_cxx input_yxx [DEFINES output_h] [PREFIX prefix])
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#
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# Define add_bison_target()
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function(add_bison_target output_cxx input_yxx)
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set(arguments "")
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set(outputs "${output_cxx}")
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set(keyword "")
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# Parse the extra arguments to the function.
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foreach(arg ${ARGN})
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if(arg STREQUAL "DEFINES")
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set(keyword "DEFINES")
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elseif(arg STREQUAL "PREFIX")
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set(keyword "PREFIX")
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elseif(keyword STREQUAL "PREFIX")
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set(arguments ${arguments} -p "${arg}")
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elseif(keyword STREQUAL "DEFINES")
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set(arguments ${arguments} --defines="${arg}")
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list(APPEND outputs "${arg}")
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else()
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message(SEND_ERROR "Unexpected argument ${arg} to add_bison_target")
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endif()
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endforeach()
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if(keyword STREQUAL arg AND NOT keyword STREQUAL "")
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message(SEND_ERROR "Expected argument after ${keyword}")
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endif()
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if(HAVE_BISON)
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get_source_file_property(input_yxx "${input_yxx}" LOCATION)
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# If we have bison, we can of course just run it.
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add_custom_command(
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OUTPUT ${outputs}
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COMMAND ${BISON_EXECUTABLE}
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-o "${output_cxx}" ${arguments}
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"${input_yxx}"
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MAIN_DEPENDENCY "${input_yxx}"
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)
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else()
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# Look for prebuilt versions of the outputs.
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set(commands "")
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set(depends "")
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foreach(output ${outputs})
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set(prebuilt_file "${output}.prebuilt")
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get_filename_component(prebuilt_file "${prebuilt_file}" ABSOLUTE)
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if(NOT EXISTS "${prebuilt_file}")
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message(SEND_ERROR "Bison was not found and ${prebuilt_file} does not exist!")
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endif()
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list(APPEND depends "${prebuilt_file}")
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set(commands ${commands} COMMAND ${CMAKE_COMMAND} -E copy ${prebuilt_file} ${output})
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endforeach()
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add_custom_command(
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OUTPUT ${outputs}
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${commands}
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DEPENDS ${depends}
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)
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endif()
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endfunction(add_bison_target)
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101
cmake/macros/CompositeSources.cmake
Normal file
101
cmake/macros/CompositeSources.cmake
Normal file
@ -0,0 +1,101 @@
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# Filename: CompositeSources.cmake
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# Description: This file defines the function composite_sources which looks at
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# a provided list of sources, generates _compositeN.cxx, and appends the
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# composites to the list. The original files in the list are marked as headers
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# so that they will be available in an IDE, but not compiled at build time.
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#
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# Usage:
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# composite_sources(target source_var)
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#
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# Example:
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# set(MY_SOURCES a.cxx b.cxx c.cxx)
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# composite_sources(my_lib MY_SOURCES)
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# add_library(my_lib ${MY_SOURCES})
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#
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# TODO: Only supports .cxx files so far, not yet .mm files
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# It should probably sort the files by extension (.c, .cxx, .mm) first.
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#
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# Settings for composite builds. Should be moved to Config.cmake?
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set(COMPOSITE_SOURCE_LIMIT "30" CACHE STRING
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"Setting this to a value higher than 1 will enable unity builds, also
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known as SCU (single compilation unit). A high value will speed up the
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build dramatically but will be more memory intensive than a low value.")
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set(COMPOSITE_SOURCE_EXTENSIONS "cxx;c;mm" CACHE STRING
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"Only files of these extensions will be added to composite files.")
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set(COMPOSITE_GENERATOR "${CMAKE_SOURCE_DIR}/cmake/scripts/MakeComposite.cmake")
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# Define composite_sources()
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function(composite_sources target sources_var)
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# How many sources were specified?
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set(orig_sources ${${sources_var}})
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set(sources ${orig_sources})
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list(LENGTH sources num_sources)
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if(num_sources LESS 2 OR ${COMPOSITE_SOURCE_LIMIT} LESS 2)
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# It's silly to do this for a single source.
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return()
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endif()
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set(composite_files "")
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set(composite_sources "")
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while(num_sources GREATER 0)
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# Pop the first element
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list(GET sources 0 source)
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list(REMOVE_AT sources 0)
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list(LENGTH sources num_sources)
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# Check if we can safely add this to a composite file.
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get_source_file_property(generated "${source}" GENERATED)
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get_source_file_property(is_header "${source}" HEADER_FILE_ONLY)
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if(NOT generated AND NOT is_header)
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# Add it to composite_sources.
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list(APPEND composite_sources ${source})
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list(LENGTH composite_sources num_composite_sources)
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if(num_sources EQUAL 0 OR NOT num_composite_sources LESS ${COMPOSITE_SOURCE_LIMIT})
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# It's pointless to make a composite source from just one file.
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if(num_composite_sources GREATER 1)
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# Figure out the name of our composite file.
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list(LENGTH composite_files index)
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math(EXPR index "1+${index}")
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set(composite_file "${CMAKE_CURRENT_BINARY_DIR}/${target}_composite${index}.cxx")
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list(APPEND composite_files "${composite_file}")
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# Set HEADER_FILE_ONLY to prevent it from showing up in the
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# compiler command, but still show up in the IDE environment.
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set_source_files_properties(${composite_sources} PROPERTIES HEADER_FILE_ONLY ON)
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# We'll interrogate the composite files, so exclude the original sources.
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set_source_files_properties(${composite_sources} PROPERTIES WRAP_EXCLUDE YES)
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# Finally, add the target that generates the composite file.
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add_custom_command(
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OUTPUT "${composite_file}"
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COMMAND ${CMAKE_COMMAND}
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-DCOMPOSITE_FILE="${composite_file}"
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-DCOMPOSITE_SOURCES="${composite_sources}"
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-P "${COMPOSITE_GENERATOR}"
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DEPENDS ${composite_sources})
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# Reset for the next composite file.
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set(composite_sources "")
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endif()
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endif()
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endif()
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endwhile()
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#set_source_files_properties(${composite_files} PROPERTIES GENERATED YES)
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# The new files are added to the existing files, which means the old files
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# are still there, but they won't be compiled due to the HEADER_FILE_ONLY setting.
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set(${sources_var} ${orig_sources} ${composite_files} PARENT_SCOPE)
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endfunction(composite_sources)
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@ -1,4 +1,4 @@
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# Filename: ConfigurePackage.cmake
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# Filename: ConfigPackage.cmake
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# Author: kestred (30 Nov, 2013)
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#
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# This modules defines a function which finds and configures libraries
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@ -6,6 +6,9 @@
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#
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# Assumes the file has already been found with find_package().
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#
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# Usage:
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# config_package(package_name)
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#
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# The following variables can be set to override the cached values of USE_XYZZY
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# CONFIG_DISABLE_EVERYTHING - always set USE_XYZZY to false
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# CONFIG_DISABLE_MISSING - set USE_XYZZY to false if it was not found
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@ -1,9 +1,11 @@
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# Filename: Interrogate.cmake
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#
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# dtool/Interrogate.cmake
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# Description: This file contains macros and functions that are used to invoke
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# interrogate, to generate wrappers for Python and/or other languages.
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#
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# This file contains macros and functions that are used to invoke
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# interrogate, in order to generate wrappers for Python and/or other
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# languages.
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# Functions:
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# target_interrogate(target [ALL] [source1 [source2 ...]])
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# add_python_module(module [lib1 [lib2 ...]])
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#
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set(IGATE_FLAGS ${INTERROGATE_OPTIONS} -DCPPPARSER -D__cplusplus -Dvolatile -Dmutable)
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9
cmake/macros/README.md
Normal file
9
cmake/macros/README.md
Normal file
@ -0,0 +1,9 @@
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Directory Info
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--------------
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**Directory:** /cmake/macros
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**License:** Unlicense
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**Description:** This directory is used for CMake modules which may be _unsafe_
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to use outside of a Panda3D project. These modules may rely on Panda3D specific
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cmake variables, Panda3D's directory structure, or some other dependency.
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They are not intended to be included in other projects directly, though you
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are free to copy and adapt them to your own needs.
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50
cmake/modules/AutoInclude.cmake
Normal file
50
cmake/modules/AutoInclude.cmake
Normal file
@ -0,0 +1,50 @@
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# Filename: AutoInclude.cmake
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# Description: This file backports the CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE
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# introduced in CMake 2.8.11 to previous versions of cmake, and enables the
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# behavior by default.
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#
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# Emulate CMake 2.8.11's CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE behavior.
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if(CMAKE_VERSION VERSION_LESS 2.8.11)
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# Replace some built-in functions in order to extend their functionality.
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function(add_library target)
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_add_library(${target} ${ARGN})
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set_target_properties("${target}" PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_BINARY_DIR}")
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endfunction()
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function(add_executable target)
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_add_executable(${target} ${ARGN})
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set_target_properties("${target}" PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_BINARY_DIR}")
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endfunction()
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function(target_link_libraries target)
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set(interface_dirs)
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get_target_property(target_interface_dirs "${target}" INTERFACE_INCLUDE_DIRECTORIES)
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foreach(lib ${ARGN})
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get_target_property(lib_interface_dirs "${lib}" INTERFACE_INCLUDE_DIRECTORIES)
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if(lib_interface_dirs)
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list(APPEND interface_dirs ${lib_interface_dirs})
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endif()
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endforeach()
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list(REMOVE_DUPLICATES interface_dirs)
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#NB. target_include_directories is new in 2.8.8.
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#target_include_directories("${target}" ${interface_dirs})
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include_directories(${interface_dirs})
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# Update this target's interface inc dirs.
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set_target_properties("${target}" PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${target_interface_dirs};${interface_dirs}")
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# Call to the built-in function we are overriding.
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_target_link_libraries(${target} ${ARGN})
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endfunction()
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else()
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# 2.8.11 supports this natively.
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set(CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE ON)
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endif()
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set(CMAKE_INCLUDE_CURRENT_DIR ON)
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7
cmake/modules/README.md
Normal file
7
cmake/modules/README.md
Normal file
@ -0,0 +1,7 @@
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Directory Info
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--------------
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**Directory:** /cmake/modules
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**License:** Unlicense
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**Description:** This directory is used for standard CMake modules which are safe
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to use outside of a Panda3D project. This should be the normal location for
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most FindXYZZY packages that are written for Panda3D.
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@ -1,5 +1,13 @@
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# Filename: MakeComposite.cmake
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#
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# Description: When run, creates a single C++ file which includes multiple
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# other C++ files, to help facilitate unity builds.
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# Unity builds provide significantly increased compile speed.
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#
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# Usage:
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# This script is invoked via add_custom_target, like this:
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# cmake -P MakeComposite.cmake -D COMPOSITE_FILE="x_composite1.cxx" -D COMPOSITE_SOURCES="a.cxx b.cxx"
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#
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if(CMAKE_SCRIPT_MODE_FILE)
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#cmake_minimum_required(VERSION 2.8.4)
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10
cmake/scripts/README.md
Normal file
10
cmake/scripts/README.md
Normal file
@ -0,0 +1,10 @@
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Directory Info
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--------------
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**Directory:** /cmake/scripts
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**License:** Unlicense
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**Description:** This directory is used for cmake files which are not meant to
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be included using CMake's normal include() directive. Typically, files in this
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directory will be invoked as a custom command/target in the form of:
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```
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cmake -P <CustomScriptName.cmake> [... other options ...]
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```
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@ -1,205 +0,0 @@
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# Settings for composite builds. Should be moved to Config.cmake?
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set(COMPOSITE_SOURCE_LIMIT "30" CACHE STRING
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"Setting this to a value higher than 1 will enable unity builds, also
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known as SCU (single compilation unit). A high value will speed up the
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build dramatically but will be more memory intensive than a low value.")
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set(COMPOSITE_SOURCE_EXTENSIONS "cxx;c;mm" CACHE STRING
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"Only files of these extensions will be added to composite files.")
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set(COMPOSITE_GENERATOR "${CMAKE_CURRENT_LIST_DIR}/MakeComposite.cmake")
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#
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# Macro: composite_sources(target sources_var)
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# Looks at all the sources, generates _composite#.cxx and modifies the list.
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# Usage:
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# set(MY_SOURCES a.cxx b.cxx c.cxx)
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# composite_sources(MY_SOURCES)
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# add_library(my ${MY_SOURCES})
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#
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#TODO: only supports .cxx files so far, not yet .mm files
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# it should probably sort the files by extension (.c, .cxx, .mm) first.
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#
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function(composite_sources target sources_var)
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# How many sources were specified?
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set(orig_sources ${${sources_var}})
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set(sources ${orig_sources})
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list(LENGTH sources num_sources)
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if(num_sources LESS 2 OR ${COMPOSITE_SOURCE_LIMIT} LESS 2)
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# It's silly to do this for a single source.
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return()
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endif()
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set(composite_files "")
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set(composite_sources "")
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while(num_sources GREATER 0)
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# Pop the first element
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list(GET sources 0 source)
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list(REMOVE_AT sources 0)
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list(LENGTH sources num_sources)
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|
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# Check if we can safely add this to a composite file.
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get_source_file_property(generated "${source}" GENERATED)
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get_source_file_property(is_header "${source}" HEADER_FILE_ONLY)
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|
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if(NOT generated AND NOT is_header)
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# Add it to composite_sources.
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list(APPEND composite_sources ${source})
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list(LENGTH composite_sources num_composite_sources)
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|
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if(num_sources EQUAL 0 OR NOT num_composite_sources LESS ${COMPOSITE_SOURCE_LIMIT})
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|
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# It's pointless to make a composite source from just one file.
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if(num_composite_sources GREATER 1)
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|
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# Figure out the name of our composite file.
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list(LENGTH composite_files index)
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math(EXPR index "1+${index}")
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set(composite_file "${CMAKE_CURRENT_BINARY_DIR}/${target}_composite${index}.cxx")
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list(APPEND composite_files "${composite_file}")
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|
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# Set HEADER_FILE_ONLY to prevent it from showing up in the
|
||||
# compiler command, but still show up in the IDE environment.
|
||||
set_source_files_properties(${composite_sources} PROPERTIES HEADER_FILE_ONLY ON)
|
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|
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# We'll interrogate the composite files, so exclude the original sources.
|
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set_source_files_properties(${composite_sources} PROPERTIES WRAP_EXCLUDE YES)
|
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|
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# Finally, add the target that generates the composite file.
|
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add_custom_command(
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OUTPUT "${composite_file}"
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COMMAND ${CMAKE_COMMAND}
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-DCOMPOSITE_FILE="${composite_file}"
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-DCOMPOSITE_SOURCES="${composite_sources}"
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-P "${COMPOSITE_GENERATOR}"
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DEPENDS ${composite_sources})
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# Reset for the next composite file.
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||||
set(composite_sources "")
|
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endif()
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||||
endif()
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||||
endif()
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||||
endwhile()
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||||
|
||||
#set_source_files_properties(${composite_files} PROPERTIES GENERATED YES)
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|
||||
# The new files are added to the existing files, which means the old files
|
||||
# are still there, but they won't be compiled due to the HEADER_FILE_ONLY setting.
|
||||
set(${sources_var} ${orig_sources} ${composite_files} PARENT_SCOPE)
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||||
endfunction(composite_sources)
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||||
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#
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||||
# Function: add_bison_target(output_cxx input_yxx [DEFINES output_h] [PREFIX prefix])
|
||||
# Takes .prebuilt files into account if BISON_FOUND is not true.
|
||||
#
|
||||
function(add_bison_target output_cxx input_yxx)
|
||||
set(arguments "")
|
||||
set(outputs "${output_cxx}")
|
||||
set(keyword "")
|
||||
|
||||
# Parse the extra arguments to the function.
|
||||
foreach(arg ${ARGN})
|
||||
if(arg STREQUAL "DEFINES")
|
||||
set(keyword "DEFINES")
|
||||
elseif(arg STREQUAL "PREFIX")
|
||||
set(keyword "PREFIX")
|
||||
|
||||
elseif(keyword STREQUAL "PREFIX")
|
||||
set(arguments ${arguments} -p "${arg}")
|
||||
elseif(keyword STREQUAL "DEFINES")
|
||||
set(arguments ${arguments} --defines="${arg}")
|
||||
list(APPEND outputs "${arg}")
|
||||
|
||||
else()
|
||||
message(SEND_ERROR "Unexpected argument ${arg} to add_bison_target")
|
||||
endif()
|
||||
endforeach()
|
||||
|
||||
if(keyword STREQUAL arg AND NOT keyword STREQUAL "")
|
||||
message(SEND_ERROR "Expected argument after ${keyword}")
|
||||
endif()
|
||||
|
||||
if(HAVE_BISON)
|
||||
get_source_file_property(input_yxx "${input_yxx}" LOCATION)
|
||||
|
||||
# If we have bison, we can of course just run it.
|
||||
add_custom_command(
|
||||
OUTPUT ${outputs}
|
||||
COMMAND ${BISON_EXECUTABLE}
|
||||
-o "${output_cxx}" ${arguments}
|
||||
"${input_yxx}"
|
||||
MAIN_DEPENDENCY "${input_yxx}"
|
||||
)
|
||||
|
||||
else()
|
||||
# Look for prebuilt versions of the outputs.
|
||||
set(commands "")
|
||||
set(depends "")
|
||||
|
||||
foreach(output ${outputs})
|
||||
set(prebuilt_file "${output}.prebuilt")
|
||||
get_filename_component(prebuilt_file "${prebuilt_file}" ABSOLUTE)
|
||||
|
||||
if(NOT EXISTS "${prebuilt_file}")
|
||||
message(SEND_ERROR "Bison was not found and ${prebuilt_file} does not exist!")
|
||||
endif()
|
||||
|
||||
list(APPEND depends "${prebuilt_file}")
|
||||
set(commands ${commands} COMMAND ${CMAKE_COMMAND} -E copy ${prebuilt_file} ${output})
|
||||
endforeach()
|
||||
|
||||
add_custom_command(
|
||||
OUTPUT ${outputs}
|
||||
${commands}
|
||||
DEPENDS ${depends}
|
||||
)
|
||||
endif()
|
||||
endfunction(add_bison_target)
|
||||
|
||||
|
||||
# Emulate CMake 2.8.11's CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE behavior.
|
||||
if(CMAKE_VERSION VERSION_LESS 2.8.11)
|
||||
# Replace some built-in functions in order to extend their functionality.
|
||||
function(add_library target)
|
||||
_add_library(${target} ${ARGN})
|
||||
set_target_properties("${target}" PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_BINARY_DIR}")
|
||||
endfunction()
|
||||
|
||||
function(add_executable target)
|
||||
_add_executable(${target} ${ARGN})
|
||||
set_target_properties("${target}" PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_BINARY_DIR}")
|
||||
endfunction()
|
||||
|
||||
function(target_link_libraries target)
|
||||
set(interface_dirs)
|
||||
get_target_property(target_interface_dirs "${target}" INTERFACE_INCLUDE_DIRECTORIES)
|
||||
|
||||
foreach(lib ${ARGN})
|
||||
get_target_property(lib_interface_dirs "${lib}" INTERFACE_INCLUDE_DIRECTORIES)
|
||||
|
||||
if(lib_interface_dirs)
|
||||
list(APPEND interface_dirs ${lib_interface_dirs})
|
||||
endif()
|
||||
endforeach()
|
||||
|
||||
list(REMOVE_DUPLICATES interface_dirs)
|
||||
|
||||
#NB. target_include_directories is new in 2.8.8.
|
||||
#target_include_directories("${target}" ${interface_dirs})
|
||||
include_directories(${interface_dirs})
|
||||
|
||||
# Update this target's interface inc dirs.
|
||||
set_target_properties("${target}" PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${target_interface_dirs};${interface_dirs}")
|
||||
|
||||
# Call to the built-in function we are overriding.
|
||||
_target_link_libraries(${target} ${ARGN})
|
||||
endfunction()
|
||||
|
||||
else()
|
||||
# 2.8.11 supports this natively.
|
||||
set(CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE ON)
|
||||
endif()
|
||||
|
||||
set(CMAKE_INCLUDE_CURRENT_DIR ON)
|
||||
Loading…
x
Reference in New Issue
Block a user