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assimp/contrib/draco/cmake/draco_targets.cmake

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CMake
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# Copyright 2021 The Draco Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
if(DRACO_CMAKE_DRACO_TARGETS_CMAKE_)
return()
endif() # DRACO_CMAKE_DRACO_TARGETS_CMAKE_
set(DRACO_CMAKE_DRACO_TARGETS_CMAKE_ 1)
# Resets list variables used to track draco targets.
macro(draco_reset_target_lists)
unset(draco_targets)
unset(draco_exe_targets)
unset(draco_lib_targets)
unset(draco_objlib_targets)
unset(draco_module_targets)
unset(draco_sources)
unset(draco_test_targets)
endmacro()
# Creates an executable target. The target name is passed as a parameter to the
# NAME argument, and the sources passed as a parameter to the SOURCES argument:
# draco_add_executable(NAME <name> SOURCES <sources> [optional args])
#
# Optional args:
# cmake-format: off
# - OUTPUT_NAME: Override output file basename. Target basename defaults to
# NAME.
# - TEST: Flag. Presence means treat executable as a test.
# - DEFINES: List of preprocessor macro definitions.
# - INCLUDES: list of include directories for the target.
# - COMPILE_FLAGS: list of compiler flags for the target.
# - LINK_FLAGS: List of linker flags for the target.
# - OBJLIB_DEPS: List of CMake object library target dependencies.
# - LIB_DEPS: List of CMake library dependencies.
# cmake-format: on
#
# Sources passed to this macro are added to $draco_test_sources when TEST is
# specified. Otherwise sources are added to $draco_sources.
#
# Targets passed to this macro are always added to the $draco_targets list. When
# TEST is specified targets are also added to the $draco_test_targets list.
# Otherwise targets are added to $draco_exe_targets.
macro(draco_add_executable)
unset(exe_TEST)
unset(exe_TEST_DEFINES_MAIN)
unset(exe_NAME)
unset(exe_OUTPUT_NAME)
unset(exe_SOURCES)
unset(exe_DEFINES)
unset(exe_INCLUDES)
unset(exe_COMPILE_FLAGS)
unset(exe_LINK_FLAGS)
unset(exe_OBJLIB_DEPS)
unset(exe_LIB_DEPS)
set(optional_args TEST)
set(single_value_args NAME OUTPUT_NAME)
set(multi_value_args
SOURCES
DEFINES
INCLUDES
COMPILE_FLAGS
LINK_FLAGS
OBJLIB_DEPS
LIB_DEPS)
cmake_parse_arguments(exe "${optional_args}" "${single_value_args}"
"${multi_value_args}" ${ARGN})
if(DRACO_VERBOSE GREATER 1)
message(
"--------- draco_add_executable ---------\n"
"exe_TEST=${exe_TEST}\n"
"exe_TEST_DEFINES_MAIN=${exe_TEST_DEFINES_MAIN}\n"
"exe_NAME=${exe_NAME}\n"
"exe_OUTPUT_NAME=${exe_OUTPUT_NAME}\n"
"exe_SOURCES=${exe_SOURCES}\n"
"exe_DEFINES=${exe_DEFINES}\n"
"exe_INCLUDES=${exe_INCLUDES}\n"
"exe_COMPILE_FLAGS=${exe_COMPILE_FLAGS}\n"
"exe_LINK_FLAGS=${exe_LINK_FLAGS}\n"
"exe_OBJLIB_DEPS=${exe_OBJLIB_DEPS}\n"
"exe_LIB_DEPS=${exe_LIB_DEPS}\n"
"------------------------------------------\n")
endif()
if(NOT (exe_NAME AND exe_SOURCES))
message(FATAL_ERROR "draco_add_executable: NAME and SOURCES required.")
endif()
list(APPEND draco_targets ${exe_NAME})
if(exe_TEST)
list(APPEND draco_test_targets ${exe_NAME})
list(APPEND draco_test_sources ${exe_SOURCES})
else()
list(APPEND draco_exe_targets ${exe_NAME})
list(APPEND draco_sources ${exe_SOURCES})
endif()
add_executable(${exe_NAME} ${exe_SOURCES})
target_compile_features(${exe_NAME} PUBLIC cxx_std_11)
if(NOT EMSCRIPTEN)
set_target_properties(${exe_NAME} PROPERTIES VERSION ${DRACO_VERSION})
endif()
if(exe_OUTPUT_NAME)
set_target_properties(${exe_NAME} PROPERTIES OUTPUT_NAME ${exe_OUTPUT_NAME})
endif()
draco_process_intrinsics_sources(TARGET ${exe_NAME} SOURCES ${exe_SOURCES})
if(exe_DEFINES)
target_compile_definitions(${exe_NAME} PRIVATE ${exe_DEFINES})
endif()
if(exe_INCLUDES)
target_include_directories(${exe_NAME} PRIVATE ${exe_INCLUDES})
endif()
if(exe_COMPILE_FLAGS OR DRACO_CXX_FLAGS)
target_compile_options(${exe_NAME} PRIVATE ${exe_COMPILE_FLAGS}
${DRACO_CXX_FLAGS})
endif()
if(exe_LINK_FLAGS OR DRACO_EXE_LINKER_FLAGS)
if(${CMAKE_VERSION} VERSION_LESS "3.13")
list(APPEND exe_LINK_FLAGS "${DRACO_EXE_LINKER_FLAGS}")
# LINK_FLAGS is managed as a string.
draco_set_and_stringify(SOURCE "${exe_LINK_FLAGS}" DEST exe_LINK_FLAGS)
set_target_properties(${exe_NAME} PROPERTIES LINK_FLAGS
"${exe_LINK_FLAGS}")
else()
target_link_options(${exe_NAME} PRIVATE ${exe_LINK_FLAGS}
${DRACO_EXE_LINKER_FLAGS})
endif()
endif()
if(exe_OBJLIB_DEPS)
foreach(objlib_dep ${exe_OBJLIB_DEPS})
target_sources(${exe_NAME} PRIVATE $<TARGET_OBJECTS:${objlib_dep}>)
endforeach()
endif()
if(CMAKE_THREAD_LIBS_INIT)
list(APPEND exe_LIB_DEPS ${CMAKE_THREAD_LIBS_INIT})
endif()
if(BUILD_SHARED_LIBS AND (MSVC OR WIN32))
target_compile_definitions(${exe_NAME} PRIVATE "DRACO_BUILDING_DLL=0")
endif()
if(exe_LIB_DEPS)
if(CMAKE_CXX_COMPILER_ID MATCHES "^Clang|^GNU")
# Third party dependencies can introduce dependencies on system and test
# libraries. Since the target created here is an executable, and CMake
# does not provide a method of controlling order of link dependencies,
# wrap all of the dependencies of this target in start/end group flags to
# ensure that dependencies of third party targets can be resolved when
# those dependencies happen to be resolved by dependencies of the current
# target.
# TODO(tomfinegan): For portability use LINK_GROUP with RESCAN instead of
# directly (ab)using compiler/linker specific flags once CMake v3.24 is in
# wider use. See:
# https://cmake.org/cmake/help/latest/manual/cmake-generator-expressions.7.html#genex:LINK_GROUP
list(INSERT exe_LIB_DEPS 0 -Wl,--start-group)
list(APPEND exe_LIB_DEPS -Wl,--end-group)
endif()
target_link_libraries(${exe_NAME} PRIVATE ${exe_LIB_DEPS})
endif()
endmacro()
# Creates a library target of the specified type. The target name is passed as a
# parameter to the NAME argument, the type as a parameter to the TYPE argument,
# and the sources passed as a parameter to the SOURCES argument:
# draco_add_library(NAME <name> TYPE <type> SOURCES <sources> [optional args])
#
# Optional args:
# cmake-format: off
# - OUTPUT_NAME: Override output file basename. Target basename defaults to
# NAME. OUTPUT_NAME is ignored when BUILD_SHARED_LIBS is enabled and CMake
# is generating a build for which MSVC is true. This is to avoid output
# basename collisions with DLL import libraries.
# - TEST: Flag. Presence means treat library as a test.
# - DEFINES: List of preprocessor macro definitions.
# - INCLUDES: list of include directories for the target.
# - COMPILE_FLAGS: list of compiler flags for the target.
# - LINK_FLAGS: List of linker flags for the target.
# - OBJLIB_DEPS: List of CMake object library target dependencies.
# - LIB_DEPS: List of CMake library dependencies.
# - PUBLIC_INCLUDES: List of include paths to export to dependents.
# cmake-format: on
#
# Sources passed to the macro are added to the lists tracking draco sources:
# cmake-format: off
# - When TEST is specified sources are added to $draco_test_sources.
# - Otherwise sources are added to $draco_sources.
# cmake-format: on
#
# Targets passed to this macro are added to the lists tracking draco targets:
# cmake-format: off
# - Targets are always added to $draco_targets.
# - When the TEST flag is specified, targets are added to
# $draco_test_targets.
# - When TEST is not specified:
# - Libraries of type SHARED are added to $draco_dylib_targets.
# - Libraries of type OBJECT are added to $draco_objlib_targets.
# - Libraries of type STATIC are added to $draco_lib_targets.
# cmake-format: on
macro(draco_add_library)
unset(lib_TEST)
unset(lib_NAME)
unset(lib_OUTPUT_NAME)
unset(lib_TYPE)
unset(lib_SOURCES)
unset(lib_DEFINES)
unset(lib_INCLUDES)
unset(lib_COMPILE_FLAGS)
unset(lib_LINK_FLAGS)
unset(lib_OBJLIB_DEPS)
unset(lib_LIB_DEPS)
unset(lib_PUBLIC_INCLUDES)
unset(lib_TARGET_PROPERTIES)
set(optional_args TEST)
set(single_value_args NAME OUTPUT_NAME TYPE)
set(multi_value_args
SOURCES
DEFINES
INCLUDES
COMPILE_FLAGS
LINK_FLAGS
OBJLIB_DEPS
LIB_DEPS
PUBLIC_INCLUDES
TARGET_PROPERTIES)
cmake_parse_arguments(lib "${optional_args}" "${single_value_args}"
"${multi_value_args}" ${ARGN})
if(DRACO_VERBOSE GREATER 1)
message(
"--------- draco_add_library ---------\n"
"lib_TEST=${lib_TEST}\n"
"lib_NAME=${lib_NAME}\n"
"lib_OUTPUT_NAME=${lib_OUTPUT_NAME}\n"
"lib_TYPE=${lib_TYPE}\n"
"lib_SOURCES=${lib_SOURCES}\n"
"lib_DEFINES=${lib_DEFINES}\n"
"lib_INCLUDES=${lib_INCLUDES}\n"
"lib_COMPILE_FLAGS=${lib_COMPILE_FLAGS}\n"
"lib_LINK_FLAGS=${lib_LINK_FLAGS}\n"
"lib_OBJLIB_DEPS=${lib_OBJLIB_DEPS}\n"
"lib_LIB_DEPS=${lib_LIB_DEPS}\n"
"lib_PUBLIC_INCLUDES=${lib_PUBLIC_INCLUDES}\n"
"---------------------------------------\n")
endif()
if(NOT (lib_NAME AND lib_TYPE))
message(FATAL_ERROR "draco_add_library: NAME and TYPE required.")
endif()
list(APPEND draco_targets ${lib_NAME})
if(lib_TEST)
list(APPEND draco_test_targets ${lib_NAME})
list(APPEND draco_test_sources ${lib_SOURCES})
else()
list(APPEND draco_sources ${lib_SOURCES})
if(lib_TYPE STREQUAL MODULE)
list(APPEND draco_module_targets ${lib_NAME})
elseif(lib_TYPE STREQUAL OBJECT)
list(APPEND draco_objlib_targets ${lib_NAME})
elseif(lib_TYPE STREQUAL SHARED)
list(APPEND draco_dylib_targets ${lib_NAME})
elseif(lib_TYPE STREQUAL STATIC)
list(APPEND draco_lib_targets ${lib_NAME})
else()
message(WARNING "draco_add_library: Unhandled type: ${lib_TYPE}")
endif()
endif()
add_library(${lib_NAME} ${lib_TYPE} ${lib_SOURCES})
target_compile_features(${lib_NAME} PUBLIC cxx_std_11)
target_include_directories(${lib_NAME} PUBLIC $<INSTALL_INTERFACE:include>)
if(BUILD_SHARED_LIBS)
# Enable PIC for all targets in shared configurations.
set_target_properties(${lib_NAME} PROPERTIES POSITION_INDEPENDENT_CODE ON)
endif()
if(lib_SOURCES)
draco_process_intrinsics_sources(TARGET ${lib_NAME} SOURCES ${lib_SOURCES})
endif()
if(lib_OUTPUT_NAME)
if(NOT (BUILD_SHARED_LIBS AND MSVC))
set_target_properties(${lib_NAME} PROPERTIES OUTPUT_NAME
${lib_OUTPUT_NAME})
endif()
endif()
if(lib_DEFINES)
target_compile_definitions(${lib_NAME} PRIVATE ${lib_DEFINES})
endif()
if(lib_INCLUDES)
target_include_directories(${lib_NAME} PRIVATE ${lib_INCLUDES})
endif()
if(lib_PUBLIC_INCLUDES)
target_include_directories(${lib_NAME} PUBLIC ${lib_PUBLIC_INCLUDES})
endif()
if(lib_COMPILE_FLAGS OR DRACO_CXX_FLAGS)
target_compile_options(${lib_NAME} PRIVATE ${lib_COMPILE_FLAGS}
${DRACO_CXX_FLAGS})
endif()
if(lib_LINK_FLAGS)
set_target_properties(${lib_NAME} PROPERTIES LINK_FLAGS ${lib_LINK_FLAGS})
endif()
if(lib_OBJLIB_DEPS)
foreach(objlib_dep ${lib_OBJLIB_DEPS})
target_sources(${lib_NAME} PRIVATE $<TARGET_OBJECTS:${objlib_dep}>)
endforeach()
endif()
if(lib_LIB_DEPS)
if(lib_TYPE STREQUAL STATIC)
set(link_type PUBLIC)
else()
set(link_type PRIVATE)
if(lib_TYPE STREQUAL SHARED AND CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
# The draco shared object uses the static draco as input to turn it into
# a shared object. Include everything from the static library in the
# shared object.
if(APPLE)
list(INSERT lib_LIB_DEPS 0 -Wl,-force_load)
else()
list(INSERT lib_LIB_DEPS 0 -Wl,--whole-archive)
list(APPEND lib_LIB_DEPS -Wl,--no-whole-archive)
endif()
endif()
endif()
target_link_libraries(${lib_NAME} ${link_type} ${lib_LIB_DEPS})
endif()
if(NOT MSVC AND lib_NAME MATCHES "^lib")
# Non-MSVC generators prepend lib to static lib target file names. Libdraco
# already includes lib in its name. Avoid naming output files liblib*.
set_target_properties(${lib_NAME} PROPERTIES PREFIX "")
endif()
if(NOT EMSCRIPTEN)
# VERSION and SOVERSION as necessary
if((lib_TYPE STREQUAL BUNDLE OR lib_TYPE STREQUAL SHARED) AND NOT MSVC)
set_target_properties(
${lib_NAME} PROPERTIES VERSION ${DRACO_SOVERSION}
SOVERSION ${DRACO_SOVERSION_MAJOR})
endif()
endif()
if(BUILD_SHARED_LIBS AND (MSVC OR WIN32))
if(lib_TYPE STREQUAL SHARED)
target_compile_definitions(${lib_NAME} PRIVATE "DRACO_BUILDING_DLL=1")
else()
target_compile_definitions(${lib_NAME} PRIVATE "DRACO_BUILDING_DLL=0")
endif()
endif()
# Determine if $lib_NAME is a header only target.
unset(sources_list)
if(lib_SOURCES)
set(sources_list ${lib_SOURCES})
list(FILTER sources_list INCLUDE REGEX cc$)
endif()
if(NOT sources_list)
if(NOT XCODE)
# This is a header only target. Tell CMake the link language.
set_target_properties(${lib_NAME} PROPERTIES LINKER_LANGUAGE CXX)
else()
# The Xcode generator ignores LINKER_LANGUAGE. Add a dummy cc file.
draco_create_dummy_source_file(TARGET ${lib_NAME} BASENAME ${lib_NAME})
endif()
endif()
endmacro()
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