a4801674c5
As per #36436, we now need C++17's guaranteed copy elision feature to solve ambiguities in Variant. Core developers discussed the idea to move from C++14 to C++17 as our minimum required C++ standard, and all agreed. Note that this doesn't mean that Godot is going to be written in "modern C++", but we'll use modern features where they make sense to simplify our "C with classes" codebase. Apart from new code written recently, most of the codebase still has to be ported to use newer features where relevant. Proper support for C++17 means that we need recent compiler versions: - GCC 7+ - Clang 6+ - VS 2017 15.7+ Additionally, C++17's `std::shared_mutex` (conditionally used by `vk_mem_alloc.h` when C++17 support is enabled) is only available in macOS 10.12+, so we increase our minimum supported version.
169 lines
6.3 KiB
Python
169 lines
6.3 KiB
Python
import os
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import sys
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import subprocess
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from methods import detect_darwin_sdk_path
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def is_active():
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return True
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def get_name():
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return "OSX"
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def can_build():
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if (sys.platform == "darwin" or ("OSXCROSS_ROOT" in os.environ)):
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return True
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return False
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def get_opts():
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from SCons.Variables import BoolVariable, EnumVariable
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return [
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('osxcross_sdk', 'OSXCross SDK version', 'darwin14'),
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('MACOS_SDK_PATH', 'Path to the macOS SDK', ''),
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BoolVariable('use_static_mvk', 'Link MoltenVK statically as Level-0 driver (better portability) or use Vulkan ICD loader (enables validation layers)', False),
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EnumVariable('debug_symbols', 'Add debugging symbols to release builds', 'yes', ('yes', 'no', 'full')),
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BoolVariable('separate_debug_symbols', 'Create a separate file containing debugging symbols', False),
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BoolVariable('use_ubsan', 'Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)', False),
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BoolVariable('use_asan', 'Use LLVM/GCC compiler address sanitizer (ASAN))', False),
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BoolVariable('use_tsan', 'Use LLVM/GCC compiler thread sanitizer (TSAN))', False),
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]
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def get_flags():
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return [
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]
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def configure(env):
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## Build type
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if (env["target"] == "release"):
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if (env["optimize"] == "speed"): #optimize for speed (default)
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env.Prepend(CCFLAGS=['-O3', '-fomit-frame-pointer', '-ftree-vectorize', '-msse2'])
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else: #optimize for size
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env.Prepend(CCFLAGS=['-Os','-ftree-vectorize', '-msse2'])
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if (env["debug_symbols"] == "yes"):
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env.Prepend(CCFLAGS=['-g1'])
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if (env["debug_symbols"] == "full"):
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env.Prepend(CCFLAGS=['-g2'])
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elif (env["target"] == "release_debug"):
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if (env["optimize"] == "speed"): #optimize for speed (default)
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env.Prepend(CCFLAGS=['-O2'])
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else: #optimize for size
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env.Prepend(CCFLAGS=['-Os'])
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env.Prepend(CPPDEFINES=['DEBUG_ENABLED'])
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if (env["debug_symbols"] == "yes"):
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env.Prepend(CCFLAGS=['-g1'])
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if (env["debug_symbols"] == "full"):
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env.Prepend(CCFLAGS=['-g2'])
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elif (env["target"] == "debug"):
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env.Prepend(CCFLAGS=['-g3'])
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env.Prepend(CPPDEFINES=['DEBUG_ENABLED', 'DEBUG_MEMORY_ENABLED'])
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## Architecture
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# Mac OS X no longer runs on 32-bit since 10.7 which is unsupported since 2014
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# As such, we only support 64-bit
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env["bits"] = "64"
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## Compiler configuration
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# Save this in environment for use by other modules
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if "OSXCROSS_ROOT" in os.environ:
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env["osxcross"] = True
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if not "osxcross" in env: # regular native build
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env.Append(CCFLAGS=['-arch', 'x86_64'])
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env.Append(LINKFLAGS=['-arch', 'x86_64'])
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if (env["macports_clang"] != 'no'):
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mpprefix = os.environ.get("MACPORTS_PREFIX", "/opt/local")
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mpclangver = env["macports_clang"]
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env["CC"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang"
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env["LINK"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang++"
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env["CXX"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang++"
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env['AR'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ar"
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env['RANLIB'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ranlib"
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env['AS'] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-as"
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env.Append(CPPDEFINES=['__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
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else:
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env['CC'] = 'clang'
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env['CXX'] = 'clang++'
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detect_darwin_sdk_path('osx', env)
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env.Append(CCFLAGS=['-isysroot', '$MACOS_SDK_PATH'])
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env.Append(LINKFLAGS=['-isysroot', '$MACOS_SDK_PATH'])
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else: # osxcross build
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root = os.environ.get("OSXCROSS_ROOT", 0)
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basecmd = root + "/target/bin/x86_64-apple-" + env["osxcross_sdk"] + "-"
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ccache_path = os.environ.get("CCACHE")
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if ccache_path is None:
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env['CC'] = basecmd + "cc"
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env['CXX'] = basecmd + "c++"
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else:
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# there aren't any ccache wrappers available for OS X cross-compile,
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# to enable caching we need to prepend the path to the ccache binary
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env['CC'] = ccache_path + ' ' + basecmd + "cc"
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env['CXX'] = ccache_path + ' ' + basecmd + "c++"
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env['AR'] = basecmd + "ar"
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env['RANLIB'] = basecmd + "ranlib"
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env['AS'] = basecmd + "as"
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env.Append(CPPDEFINES=['__MACPORTS__']) #hack to fix libvpx MM256_BROADCASTSI128_SI256 define
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if (env["CXX"] == "clang++"):
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env.Append(CPPDEFINES=['TYPED_METHOD_BIND'])
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env["CC"] = "clang"
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env["LINK"] = "clang++"
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if env['use_ubsan'] or env['use_asan'] or env['use_tsan']:
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env.extra_suffix += "s"
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if env['use_ubsan']:
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env.Append(CCFLAGS=['-fsanitize=undefined'])
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env.Append(LINKFLAGS=['-fsanitize=undefined'])
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if env['use_asan']:
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env.Append(CCFLAGS=['-fsanitize=address'])
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env.Append(LINKFLAGS=['-fsanitize=address'])
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if env['use_tsan']:
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env.Append(CCFLAGS=['-fsanitize=thread'])
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env.Append(LINKFLAGS=['-fsanitize=thread'])
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## Dependencies
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if env['builtin_libtheora']:
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env["x86_libtheora_opt_gcc"] = True
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## Flags
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env.Prepend(CPPPATH=['#platform/osx'])
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env.Append(CPPDEFINES=['OSX_ENABLED', 'UNIX_ENABLED', 'APPLE_STYLE_KEYS', 'COREAUDIO_ENABLED', 'COREMIDI_ENABLED'])
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env.Append(LINKFLAGS=['-framework', 'Cocoa', '-framework', 'Carbon', '-framework', 'AudioUnit', '-framework', 'CoreAudio', '-framework', 'CoreMIDI', '-framework', 'IOKit', '-framework', 'ForceFeedback', '-framework', 'CoreVideo', '-framework', 'AVFoundation', '-framework', 'CoreMedia'])
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env.Append(LIBS=['pthread', 'z'])
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env.Append(CPPDEFINES=['VULKAN_ENABLED'])
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env.Append(LINKFLAGS=['-framework', 'Metal', '-framework', 'QuartzCore', '-framework', 'IOSurface'])
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if (env['use_static_mvk']):
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env.Append(LINKFLAGS=['-framework', 'MoltenVK'])
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env['builtin_vulkan'] = False
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elif not env['builtin_vulkan']:
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env.Append(LIBS=['vulkan'])
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#env.Append(CPPDEFINES=['GLES_ENABLED', 'OPENGL_ENABLED'])
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env.Append(CCFLAGS=['-mmacosx-version-min=10.12'])
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env.Append(LINKFLAGS=['-mmacosx-version-min=10.12'])
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