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cmake_minimum_required(VERSION 2.8.12)
project(shaderc)
enable_testing()
if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
message(STATUS "No build type selected, default to Debug")
set(CMAKE_BUILD_TYPE "Debug")
endif()
message(STATUS "Shaderc: build type is \"${CMAKE_BUILD_TYPE}\".")
option(SHADERC_ENABLE_SPVC "Enable libshaderc_spvc" OFF)
option(SHADERC_SKIP_INSTALL "Skip installation" ${SHADERC_SKIP_INSTALL})
if(NOT ${SHADERC_SKIP_INSTALL})
set(SHADERC_ENABLE_INSTALL ON)
endif()
option(SHADERC_SKIP_TESTS "Skip building tests" ${SHADERC_SKIP_TESTS})
if(NOT ${SHADERC_SKIP_TESTS})
set(SHADERC_ENABLE_TESTS ON)
endif()
if(${SHADERC_ENABLE_TESTS})
message(STATUS "Configuring Shaderc to build tests.")
else()
message(STATUS "Configuring Shaderc to avoid building tests.")
endif()
option(SHADERC_SPVC_ENABLE_DIRECT_LOGGING "Send logging messages from spvc directly to stdout/err" OFF)
if (${SHADERC_SPVC_ENABLE_DIRECT_LOGGING})
add_definitions(-DSHADERC_SPVC_ENABLE_DIRECT_LOGGING)
endif()
option(SHADERC_SPVC_DISABLE_CONTEXT_LOGGING "Send logging messages from spvc to context object" OFF)
if (${SHADERC_SPVC_DISABLE_CONTEXT_LOGGING})
add_definitions(-DSHADERC_SPVC_DISABLE_CONTEXT_LOGGING)
endif()
option(SHADERC_ENABLE_WERROR_COMPILE "Enable passing -Werror to compiler, if available" ON)
set (CMAKE_CXX_STANDARD 11)
include(GNUInstallDirs)
include(cmake/setup_build.cmake)
include(cmake/utils.cmake)
include(CheckCXXCompilerFlag)
set(SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS ${DISABLE_EXCEPTIONS} CACHE BOOL "Coupling SPIRV-Cross exception conversion to DISABLE_EXCEPTIONS" FORCE)
if(DISABLE_EXCEPTIONS)
# Need to set additional values here, since some of the wrapped code occurs in
# .h/.hpp files, so maybe included outside of the library.
add_definitions(-DSPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS)
endif()
# These flags are not supported on Windows and some older version of GCC
# that our bots use.
# Warning about implicit fallthrough in switch blocks
check_cxx_compiler_flag(-Wimplicit-fallthrough COMPILER_SUPPORTS_FALLTHROUGH_WARNING)
if (COMPILER_SUPPORTS_FALLTHROUGH_WARNING)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wimplicit-fallthrough")
endif()
# Warning about extra semi-colons
check_cxx_compiler_flag(-Wextra-semi COMPILER_SUPPORTS_EXTRA_SEMI_WARNING)
if (COMPILER_SUPPORTS_EXTRA_SEMI_WARNING)
add_compile_options("-Wextra-semi")
endif()
find_host_package(PythonInterp 3 REQUIRED)
add_custom_target(check-copyright ALL
${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/utils/add_copyright.py
--check
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Check copyright")
add_custom_target(add-copyright
${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/utils/add_copyright.py
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Add copyright")
if(MSVC)
option(SHADERC_ENABLE_SHARED_CRT
"Use the shared CRT instead of the static CRT"
${SHADERC_ENABLE_SHARED_CRT})
if (NOT SHADERC_ENABLE_SHARED_CRT)
# Link executables statically by replacing /MD with /MT everywhere.
foreach(flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if(${flag_var} MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/MD")
endforeach(flag_var)
endif(NOT SHADERC_ENABLE_SHARED_CRT)
endif(MSVC)
# Configure subdirectories.
# We depend on these for later projects, so they should come first.
add_subdirectory(third_party)
if(SHADERC_ENABLE_SPVC)
add_subdirectory(libshaderc_spvc)
add_subdirectory(spvc)
endif()
add_subdirectory(libshaderc_util)
add_subdirectory(libshaderc)
add_subdirectory(glslc)
add_subdirectory(examples)
add_custom_target(build-version
${PYTHON_EXECUTABLE}
${CMAKE_CURRENT_SOURCE_DIR}/utils/update_build_version.py
${shaderc_SOURCE_DIR} ${spirv-tools_SOURCE_DIR} ${glslang_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/build-version.inc
COMMENT "Update build-version.inc in the Shaderc build directory (if necessary).")
function(define_pkg_config_file NAME LIBS)
add_custom_target(${NAME}-pkg-config ALL
COMMAND ${CMAKE_COMMAND}
-DCHANGES_FILE=${CMAKE_CURRENT_SOURCE_DIR}/CHANGES
-DTEMPLATE_FILE=${CMAKE_CURRENT_SOURCE_DIR}/cmake/${NAME}.pc.in
-DOUT_FILE=${CMAKE_CURRENT_BINARY_DIR}/${NAME}.pc
-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
-DCMAKE_INSTALL_LIBDIR=${CMAKE_INSTALL_LIBDIR}
-DCMAKE_INSTALL_INCLUDEDIR=${CMAKE_INSTALL_INCLUDEDIR}
-DLIBS=${LIBS}
-P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/write_pkg_config.cmake
DEPENDS "CHANGES" "cmake/${NAME}.pc.in" "cmake/write_pkg_config.cmake")
if (SHADERC_ENABLE_INSTALL)
install(
FILES
${CMAKE_CURRENT_BINARY_DIR}/${NAME}.pc
DESTINATION
${CMAKE_INSTALL_LIBDIR}/pkgconfig)
endif()
endfunction()
if(SHADERC_ENABLE_SPVC)
set(EXTRA_STATIC_PKGCONFIG_LIBS -lshaderc_spvc)
endif()
define_pkg_config_file(shaderc -lshaderc_shared)
define_pkg_config_file(shaderc_static "-lshaderc ${EXTRA_STATIC_PKGCONFIG_LIBS} -lshaderc_util")
define_pkg_config_file(shaderc_combined -lshaderc_combined)
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