Meson 在调试模式下编译子项目

Question

我有一个父项目和一个使用介子的子项目。遗憾的是，该子项目仅在发布模式下构建。但是，即使我使用 --reconfigure 将父项目设置为调试并使用配置检查构建类型是调试，似乎没有为子项目定义 NDEBUG 宏，这导致它编译失败。

有没有办法为子项目启用调试构建？

父代码段：

project(
    'SdfParametrization',
    'cpp',
    version: '0.0.1',
    license: 'GPL',
    default_options : [
        'cpp_std=c++20',
        'default_library=static',
        'optimization=3',
        'b_ndebug=true'])

add_global_arguments(
    '-DVULKAN_HPP_NO_EXCEPTIONS',
    '-DVULKAN_HPP_TYPESAFE_CONVERSION',
    '-DNDEBUG',
    '-Wno-unused-function',
    '-fdiagnostics-color=always',
    '--coverage',
    language : 'cpp')

add_global_link_arguments(
    '-lgcov',
    '-lubsan',
    '-ldl',
    '-lvulkan',
    language : 'cpp')

cpp = meson.get_compiler('cpp')

neverengine_proj = subproject('neverengine', default_options:['buildtype=debugoptimized'])
neverengine_dep = neverengine_proj.get_variable('core_never_engine_dep')

executable('sdf_parameterization', 'ray_tracing.cpp', dependencies:[neverengine_dep])

子片段：

project(
    'NeverEngine',
    'cpp',
    version: '0.0.1',
    license: 'GPL',
    default_options : [
        'cpp_std=c++20',
        'default_library=static',
        'optimization=3'])

if not meson.is_subproject()
    add_global_arguments(
        '-DVULKAN_HPP_NO_EXCEPTIONS',
        '-DVULKAN_HPP_TYPESAFE_CONVERSION',
        '-Wno-unused-function',
        '-fdiagnostics-color=always',
        '-fsanitize=undefined',
        '--coverage',
        language : 'cpp')

    add_global_link_arguments(
        '-lgcov',
        '-lubsan',
        language : 'cpp')
endif

cpp = meson.get_compiler('cpp')

external_include_dirs = [
    'libraries/Eigen/',
    'libraries/imgui/',
    'libraries/incbin/']

sources = files(
    'Src/Engine/Animation/Animation.cpp',
    'Src/Engine/Animation/AnimationMesh.cpp',
    'Src/Engine/Animation/GltfLib.cpp',
    'Src/Engine/Animation/GltfLoaders.cpp',
    'Src/Engine/Animation/Image/CpuImage.cpp',
    'Src/Engine/Animation/NumericIntegration.cpp',
    'Src/Engine/Animation/SpringMass.cpp',
    'Src/Engine/DataSanitation/AttributeInputSanitation.cpp',
    'Src/Engine/DynamicLoading/DynamicLoader.cpp',
    'Src/Engine/EmbeddedShaders/EmbeddedShaders.cpp',
    'Src/Engine/GUI/Guizmo3D.cpp',
    'Src/Engine/GUI/_imgui.cpp',
    'Src/Engine/GUI/imgui_bridge.cpp',
    'Src/Engine/Geometry/DualContouring.cpp',
    'Src/Engine/Geometry/GeometryUtils.cpp',
    'Src/Engine/Geometry/HMesh.cpp',
    'Src/Engine/Geometry/HeatGeodesics.cpp',
    'Src/Engine/Geometry/MatrixMesh.cpp',
    'Src/Engine/Geometry/MeshGradient.cpp',
    'Src/Engine/Geometry/MeshUtils.cpp',
    'Src/Engine/Geometry/Parametrics.cpp',
    'Src/Engine/Geometry/SdfFramework.cpp',
    'Src/Engine/Geometry/Subdivision.cpp',
    'Src/Engine/Helpers/EigenHelpers.cpp',
    'Src/Engine/Helpers/FlotingPointArithmetic.cpp',
    'Src/Engine/Helpers/MiscUtils.cpp',
    'Src/Engine/Helpers/NumberTheory.cpp',
    'Src/Engine/Helpers/VectorManipulation.cpp',
    'Src/Engine/Helpers/log.cpp',
    'Src/Engine/Noise/Noise.cpp',
    'Src/Engine/Renderer/Camera/Camera.cpp',
    'Src/Engine/Renderer/IO/GLFW_tools.cpp',
    'Src/Engine/Renderer/IO/InputHandler.cpp',
    'Src/Engine/Renderer/IO/Window.cpp',
    'Src/Engine/Renderer/Renderer.cpp',
    'Src/Engine/Renderer/Rendering/Effects.cpp',
    'Src/Engine/Renderer/Rendering/Gallery.cpp',
    'Src/Engine/Renderer/Rendering/RenderTargetStorage.cpp',
    'Src/Engine/Renderer/Rendering/RenderingTechniques.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/HardwareInterface.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/Image.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/Memory.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/RenderTarget.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/RenderingPipeline.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/ShaderProgram.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/Utils.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/VkExtensionsStubs.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/VulkanBuffer.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/VulkanDebugging.cpp',
    'Src/Engine/Renderer/Scribe/Scribe.cpp',
    'Src/Engine/Shared/Shared.cpp')

external_incs = include_directories(external_include_dirs, is_system : true)
internal_incs = include_directories(['Src/Engine/', 'build/'])

all_includes = []
all_includes += external_incs
all_includes += internal_incs

pkg = import('pkgconfig')

linked_dependencies = []

linked_dependencies += dependency('vulkan', include_type : 'system')
linked_dependencies += dependency('vulkan-memory-allocator', include_type : 'system')
linked_dependencies += dependency('glfw3', include_type : 'system')
linked_dependencies += dependency('threads', include_type : 'system')
linked_dependencies += dependency('zlib', include_type : 'system')
linked_dependencies += dependency('shaderc_static', include_type : 'system')
linked_dependencies += dependency('freetype2', include_type : 'system')
linked_dependencies += dependency('stb', include_type : 'system')
linked_dependencies += dependency('tinygltf', include_type : 'system')

pre_target = custom_target(
    'Preprocess',
    output : [
        'UniformObjects.cpp',
        'UniformObjects.hpp'],
        build_always_stale : true,
        command : ['python3', '../Scripts/preprocessing.py'])

sources += pre_target
core_lib = library('CoreNeverEngine',
    sources,
    include_directories : all_includes,
    dependencies : linked_dependencies,
    build_by_default : true)
pkg.generate(core_lib)

example_path_template = 'Src/examples/@0@/@1@.cpp'

examples = [
    'base_example',
    'disk_terrain',
    'example2',
    'gaussian_subdivision',
    'gltf_loading',
    'heat_geodesics',
    'implicit_functions',
    'mesh_matrices',
    'ray_tracing',
    'sponza_scene',
    'spring_mass',
    'terrain_generation']

foreach example : examples
    tokens = example.split('_')
    camel_case_name = ''
    foreach word : tokens
        lower_case = word[0]
        upper_case = lower_case.to_upper()
        camel_case_name += upper_case + word
        camel_case_name = camel_case_name.replace(upper_case + lower_case, upper_case)
    endforeach

    path = example_path_template.format(camel_case_name, example)
    target = executable(camel_case_name, [path],
        include_directories : all_includes,
        link_with : core_lib,
        dependencies : [linked_dependencies])

endforeach

linked_dependencies += dependency('gtest')

geometry_test_files = [
    'Src/Engine/Geometry/tests/GeometryTests.cpp',
    'Src/Engine/Geometry/tests/TestsGeometryUtils_hpp.cpp',

    'Src/Engine/Geometry/GeometryUtils.cpp',
    'Src/Engine/Helpers/log.cpp',
]
test = executable(
    'GeometryTests',
    geometry_test_files,
    include_directories : all_includes,
    dependencies : linked_dependencies,
    link_args : ['-fprofile-arcs', '-ftest-coverage'],
    cpp_args : ['-fprofile-arcs', '-ftest-coverage'])

test('GeometryTests', test)


vulkan_test_files = [
    'Src/Engine/Renderer/Rendering/VulkanLayer/tests/VulkanLayerTests.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/tests/TestsHardwareInterface_cpp.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/tests/TestsHardwareInterface_hpp.cpp',

    'Src/Engine/Renderer/Rendering/VulkanLayer/VulkanDebugging.cpp',
    'Src/Engine/Renderer/Rendering/VulkanLayer/VkExtensionsStubs.cpp',
    'Src/Engine/Helpers/log.cpp',
]
test = executable(
    'VulkanTests',
    vulkan_test_files,
    include_directories : all_includes,
    dependencies : linked_dependencies,
    link_args : ['-fprofile-arcs', '-ftest-coverage'],
    cpp_args : ['-fprofile-arcs', '-ftest-coverage'])

test('VulkanTests', test)

Answer 1

目前不支持此功能，正如您从 table of core options, only 3 options are settable per subproject as of now: werror and default_library (since 0.54.0) and warning_level (since 0.56.0). And below in Specifying options per subproject 中看到的那样，您可以找到更多详细信息，例如关于申请顺序

我还从问题 Subproject default_options are ignored one of the main contributor says 的讨论中发现：

Right now only a couple of options are allowed on a per-project basis: default_library, werror (and one more I can't remember off the top of my head). We keep adding more over time, but other ones are ignored, yes.

Meson 在调试模式下编译子项目

Meson compiling subprojects in debug mode

c++

compilation

debug-build

build-system

meson-build