| # Copyright 2024 The Dawn & Tint Authors |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are met: |
| # |
| # 1. Redistributions of source code must retain the above copyright notice, this |
| # list of conditions and the following disclaimer. |
| # |
| # 2. Redistributions in binary form must reproduce the above copyright notice, |
| # this list of conditions and the following disclaimer in the documentation |
| # and/or other materials provided with the distribution. |
| # |
| # 3. Neither the name of the copyright holder nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #[==[.rst: |
| .. cmake:command:: dawn_add_library |
| |
| Create a library. |
| |
| .. code-block:: cmake |
| |
| dawn_add_library(<name> |
| [FORCE_STATIC|FORCE_SHARED|FORCE_OBJECT] |
| [HEADER_ONLY] |
| [ENABLE_EMSCRIPTEN] |
| [UTILITY_TARGET <target>] |
| [HEADERS <header>...] |
| [PRIVATE_HEADERS <header>...] |
| [SOURCES <source>...] |
| [DEPENDS <library>...] |
| [PRIVATE_DEPENDS <library>...]) |
| |
| * ``FORCE_STATIC`` or ``FORCE_SHARED`` or ``FORCE_OBJECT``: Forces a |
| static (respectively, shared and object) library to be created. |
| If none is provided, ``BUILD_SHARED_LIBS`` will control the library type. |
| * ``HEADER_ONLY``: The library only contains headers (or templates) and contains |
| no compilation steps. Mutually exclusive with ``FORCE_STATIC``. |
| * ``ENABLE_EMSCRIPTEN``: Enables the library target when building with |
| Emscripten. By default, targets are not built with Emscripten. |
| * ``UTILITY_TARGET``: If specified, all libraries and executables made by the |
| Dawn library API will privately link to this target. This may be used to |
| provide things such as project-wide compilation flags or similar. |
| * ``HEADERS``: A list of header files. |
| * ``PRIVATE_HEADERS``: A list of private header files. |
| * ``SOURCES``: A list of source files which require compilation. |
| * ``DEPENDS``: A list of libraries that this library must link against, |
| equivalent to PUBLIC deps in target_link_libraries. |
| * ``PRIVATE_DEPENDS``: A list of libraries that this library must link against, |
| equivalent to PRIVATE deps in target_link_libraries. |
| #]==] |
| function(dawn_add_library name) |
| set(kwargs) |
| cmake_parse_arguments(PARSE_ARGV 1 arg |
| "FORCE_STATIC;FORCE_SHARED;FORCE_OBJECT;HEADER_ONLY;ENABLE_EMSCRIPTEN" |
| "UTILITY_TARGET" |
| "HEADERS;PRIVATE_HEADERS;SOURCES;DEPENDS;PRIVATE_DEPENDS") |
| |
| if (arg_UNPARSED_ARGUMENTS) |
| message(FATAL_ERROR |
| "Unparsed arguments for dawn_add_library: " |
| "${arg_UNPARSED_ARGUMENTS}") |
| endif () |
| |
| # Skip targets that shouldn't be built with Emscripten. |
| if (NOT arg_ENABLE_EMSCRIPTEN AND ${DAWN_ENABLE_EMSCRIPTEN}) |
| return() |
| endif () |
| |
| if (arg_HEADER_ONLY AND arg_FORCE_STATIC) |
| message(FATAL_ERROR |
| "The ${name} library cannot be header only yet forced static.") |
| endif () |
| |
| if (NOT (arg_SOURCES OR arg_HEADERS)) |
| message(FATAL_ERROR |
| "The ${name} library needs at least one of sources or headers.") |
| endif () |
| |
| if (arg_FORCE_SHARED AND arg_FORCE_STATIC) |
| message(FATAL_ERROR |
| "The ${name} library cannot be both shared and static.") |
| elseif (arg_FORCE_SHARED AND arg_FORCE_OBJECT) |
| message(FATAL_ERROR |
| "The ${name} library cannot be both shared and object.") |
| elseif (arg_FORCE_STATIC AND arg_FORCE_OBJECT) |
| message(FATAL_ERROR |
| "The ${name} library cannot be both static and object.") |
| endif () |
| |
| if (NOT arg_SOURCES AND NOT arg_HEADER_ONLY) |
| message(AUTHOR_WARNING |
| "The ${name} library has no source files. Did you mean to " |
| "pass the `HEADER_ONLY` flag?") |
| endif () |
| |
| set(library_type) |
| if (arg_FORCE_STATIC) |
| set(library_type STATIC) |
| elseif (arg_FORCE_OBJECT) |
| set(library_type OBJECT) |
| elseif (arg_FORCE_SHARED) |
| set(library_type SHARED) |
| elseif (BUILD_SHARED_LIBS) |
| set(library_type SHARED) |
| else () |
| set(library_type STATIC) |
| endif () |
| |
| if (arg_HEADER_ONLY) |
| add_library("${name}" INTERFACE) |
| target_link_libraries("${name}" |
| INTERFACE |
| ${arg_DEPENDS}) |
| target_sources("${name}" |
| PUBLIC |
| ${arg_HEADERS}) |
| else () |
| add_library("${name}" ${library_type}) |
| if (arg_HEADERS) |
| target_sources("${name}" |
| PUBLIC |
| ${arg_HEADERS}) |
| endif () |
| target_sources("${name}" |
| PRIVATE |
| ${arg_PRIVATE_HEADERS} |
| ${arg_SOURCES}) |
| target_link_libraries("${name}" |
| PUBLIC |
| ${arg_DEPENDS} |
| PRIVATE |
| ${arg_PRIVATE_DEPENDS} |
| ${arg_UTILITY_TARGET} |
| ) |
| common_compile_options("${name}") |
| endif () |
| add_library("dawn::${name}" ALIAS "${name}") |
| endfunction() |
| |
| #[==[.rst: |
| .. cmake:command:: dawn_install_target |
| |
| Install a target and associated header files. |
| |
| .. code-block:: cmake |
| |
| dawn_install_target(<name> |
| [HEADERS <header>...] |
| ) |
| |
| * ``HEADERS``: A list of header files to install. |
| #]==] |
| function(dawn_install_target name) |
| cmake_parse_arguments(PARSE_ARGV 1 arg |
| "" |
| "" |
| "HEADERS") |
| if (arg_UNPARSED_ARGUMENTS) |
| message(FATAL_ERROR |
| "Unparsed arguments for dawn_install_target: " |
| "${arg_UNPARSED_ARGUMENTS}") |
| endif () |
| install(TARGETS "${name}" |
| EXPORT DawnTargets |
| RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} |
| LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} |
| ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} |
| ) |
| foreach(header IN LISTS arg_HEADERS) |
| # Starting from CMake 3.20 there is the cmake_path command that could simplify this code. |
| # Compute the install subdirectory for the header by stripping out the path to |
| # the 'include' (or) 'gen/include' directory... |
| string(FIND "${header}" "${DAWN_INCLUDE_DIR}" found) |
| if (found EQUAL 0) |
| string(LENGTH "${DAWN_INCLUDE_DIR}/" deduction) |
| endif() |
| string(FIND "${header}" "${DAWN_BUILD_GEN_DIR}/include/" found) |
| if (found EQUAL 0) |
| string(LENGTH "${DAWN_BUILD_GEN_DIR}/include/" deduction) |
| endif() |
| string(SUBSTRING "${header}" "${deduction}" -1 subdir) |
| |
| # ... then remove everything after the last / |
| string(FIND "${subdir}" "/" found REVERSE) |
| string(SUBSTRING "${subdir}" 0 ${found} subdir) |
| install(FILES "${header}" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${subdir}") |
| endforeach() |
| endfunction() |
