166 lines
5.8 KiB
CMake
166 lines
5.8 KiB
CMake
# Copyright 2020 The Shaderc Authors. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the 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 License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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cmake_minimum_required(VERSION 2.8.12)
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project(shaderc)
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enable_testing()
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if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
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message(STATUS "No build type selected, default to Debug")
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set(CMAKE_BUILD_TYPE "Debug")
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endif()
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message(STATUS "Shaderc: build type is \"${CMAKE_BUILD_TYPE}\".")
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option(SHADERC_ENABLE_WGSL_OUTPUT "Enable WGSL output" OFF)
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option(SHADERC_SKIP_INSTALL "Skip installation" ${SHADERC_SKIP_INSTALL})
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if(NOT ${SHADERC_SKIP_INSTALL})
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set(SHADERC_ENABLE_INSTALL ON)
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endif()
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option(SHADERC_SKIP_TESTS "Skip building tests" ${SHADERC_SKIP_TESTS})
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if(NOT ${SHADERC_SKIP_TESTS})
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set(SHADERC_ENABLE_TESTS ON)
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endif()
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if(${SHADERC_ENABLE_TESTS})
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message(STATUS "Configuring Shaderc to build tests.")
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else()
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message(STATUS "Configuring Shaderc to avoid building tests.")
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endif()
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option(SHADERC_SKIP_EXAMPLES "Skip building examples" ${SHADERC_SKIP_EXAMPLES})
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if(NOT ${SHADERC_SKIP_EXAMPLES})
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set(SHADERC_ENABLE_EXAMPLES ON)
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endif()
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if(${SHADERC_ENABLE_EXAMPLES})
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message(STATUS "Configuring Shaderc to build examples.")
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else()
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message(STATUS "Configuring Shaderc to avoid building examples.")
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endif()
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option(SHADERC_SKIP_COPYRIGHT_CHECK "Skip copyright check" ${SHADERC_SKIP_COPYRIGHT_CHECK})
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if(NOT ${SHADERC_SKIP_COPYRIGHT_CHECK})
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set(SHADERC_ENABLE_COPYRIGHT_CHECK ON)
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endif()
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if(${SHADERC_ENABLE_COPYRIGHT_CHECK})
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message(STATUS "Configuring Shaderc to check copyrights.")
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else()
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message(STATUS "Configuring Shaderc to avoid checking copyrights.")
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endif()
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option(SHADERC_ENABLE_WERROR_COMPILE "Enable passing -Werror to compiler, if available" ON)
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set (CMAKE_CXX_STANDARD 11)
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include(GNUInstallDirs)
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include(cmake/setup_build.cmake)
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include(cmake/utils.cmake)
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include(CheckCXXCompilerFlag)
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set(SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS ${DISABLE_EXCEPTIONS} CACHE BOOL "Coupling SPIRV-Cross exception conversion to DISABLE_EXCEPTIONS" FORCE)
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if(DISABLE_EXCEPTIONS)
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# Need to set additional values here, since some of the wrapped code occurs in
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# .h/.hpp files, so maybe included outside of the library.
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add_definitions(-DSPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS)
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endif()
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# These flags are not supported on Windows and some older version of GCC
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# that our bots use.
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# Warning about implicit fallthrough in switch blocks
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check_cxx_compiler_flag(-Wimplicit-fallthrough COMPILER_SUPPORTS_FALLTHROUGH_WARNING)
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if (COMPILER_SUPPORTS_FALLTHROUGH_WARNING)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wimplicit-fallthrough")
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endif()
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# Warning about extra semi-colons
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check_cxx_compiler_flag(-Wextra-semi COMPILER_SUPPORTS_EXTRA_SEMI_WARNING)
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if (COMPILER_SUPPORTS_EXTRA_SEMI_WARNING)
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add_compile_options("-Wextra-semi")
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endif()
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find_host_package(PythonInterp 3 REQUIRED)
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if (SHADERC_ENABLE_COPYRIGHT_CHECK)
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add_custom_target(check-copyright ALL
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${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/utils/add_copyright.py
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--check
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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COMMENT "Check copyright")
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endif()
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add_custom_target(add-copyright
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${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/utils/add_copyright.py
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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COMMENT "Add copyright")
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if(MSVC)
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option(SHADERC_ENABLE_SHARED_CRT
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"Use the shared CRT instead of the static CRT"
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${SHADERC_ENABLE_SHARED_CRT})
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if (NOT SHADERC_ENABLE_SHARED_CRT)
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# Link executables statically by replacing /MD with /MT everywhere.
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foreach(flag_var
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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if(${flag_var} MATCHES "/MD")
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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endif(${flag_var} MATCHES "/MD")
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endforeach(flag_var)
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endif(NOT SHADERC_ENABLE_SHARED_CRT)
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endif(MSVC)
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# Configure subdirectories.
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# We depend on these for later projects, so they should come first.
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add_subdirectory(third_party)
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add_subdirectory(libshaderc_util)
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add_subdirectory(libshaderc)
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if(${SHADERC_ENABLE_EXAMPLES})
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add_subdirectory(examples)
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endif()
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add_custom_target(build-version
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${PYTHON_EXECUTABLE}
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${CMAKE_CURRENT_SOURCE_DIR}/utils/update_build_version.py
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${shaderc_SOURCE_DIR} ${spirv-tools_SOURCE_DIR} ${glslang_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/build-version.inc
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COMMENT "Update build-version.inc in the Shaderc build directory (if necessary).")
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function(define_pkg_config_file NAME LIBS)
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add_custom_target(${NAME}-pkg-config ALL
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COMMAND ${CMAKE_COMMAND}
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-DCHANGES_FILE=${CMAKE_CURRENT_SOURCE_DIR}/CHANGES
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-DTEMPLATE_FILE=${CMAKE_CURRENT_SOURCE_DIR}/cmake/${NAME}.pc.in
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-DOUT_FILE=${CMAKE_CURRENT_BINARY_DIR}/${NAME}.pc
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-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
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-DCMAKE_INSTALL_LIBDIR=${CMAKE_INSTALL_LIBDIR}
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-DCMAKE_INSTALL_INCLUDEDIR=${CMAKE_INSTALL_INCLUDEDIR}
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-DLIBS=${LIBS}
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-P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/write_pkg_config.cmake
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DEPENDS "CHANGES" "cmake/${NAME}.pc.in" "cmake/write_pkg_config.cmake")
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if (SHADERC_ENABLE_INSTALL)
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install(
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FILES
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${CMAKE_CURRENT_BINARY_DIR}/${NAME}.pc
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DESTINATION
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${CMAKE_INSTALL_LIBDIR}/pkgconfig)
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endif()
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endfunction()
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define_pkg_config_file(shaderc -lshaderc_shared)
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define_pkg_config_file(shaderc_static "-lshaderc ${EXTRA_STATIC_PKGCONFIG_LIBS} -lshaderc_util")
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define_pkg_config_file(shaderc_combined -lshaderc_combined)
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