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# SPDX-License-Identifier: Apache-2.0
# Copyright © 2024-2025 Intel Corporation
"""Provides mixins for Apple compilers."""
from __future__ import annotations
import typing as T
from ...mesonlib import MesonException
if T.TYPE_CHECKING:
from ..._typing import ImmutableListProtocol
from ...envconfig import MachineInfo
from ..compilers import Compiler
else:
# This is a bit clever, for mypy we pretend that these mixins descend from
# Compiler, so we get all of the methods and attributes defined for us, but
# for runtime we make them descend from object (which all classes normally
# do). This gives up DRYer type checking, with no runtime impact
Compiler = object
class AppleCompilerMixin(Compiler):
"""Handle differences between Vanilla Clang and the Clang shipped with XCode."""
__BASE_OMP_FLAGS: ImmutableListProtocol[str] = ['-Xpreprocessor', '-fopenmp']
if T.TYPE_CHECKING:
# Older versions of mypy can't figure this out
info: MachineInfo
def openmp_flags(self) -> T.List[str]:
"""Flags required to compile with OpenMP on Apple.
The Apple Clang Compiler doesn't have builtin support for OpenMP, it
must be provided separately. As such, we need to add the -Xpreprocessor
argument so that an external OpenMP can be found.
:return: A list of arguments
"""
if self.info.cpu_family.startswith('x86'):
root = '/usr/local'
else:
root = '/opt/homebrew'
return self.__BASE_OMP_FLAGS + [f'-I{root}/opt/libomp/include']
def openmp_link_flags(self) -> T.List[str]:
if self.info.cpu_family.startswith('x86'):
root = '/usr/local'
else:
root = '/opt/homebrew'
link = self.find_library('omp', [f'{root}/opt/libomp/lib'])
if not link:
raise MesonException("Couldn't find libomp")
return self.__BASE_OMP_FLAGS + link
def get_prelink_args(self, prelink_name: str, obj_list: T.List[str]) -> T.Tuple[T.List[str], T.List[str]]:
# The objects are prelinked through the compiler, which injects -lSystem
return [prelink_name], ['-nostdlib', '-r', '-o', prelink_name] + obj_list
class AppleCStdsMixin(Compiler):
"""Provide version overrides for the Apple Compilers."""
_C17_VERSION = '>=10.0.0'
_C18_VERSION = '>=11.0.0'
_C2X_VERSION = '>=11.0.3'
_C23_VERSION = '>=17.0.0'
_C2Y_VERSION = '>=17.0.0'
class AppleCPPStdsMixin(Compiler):
"""Provide version overrides for the Apple C++ Compilers."""
_CPP23_VERSION = '>=13.0.0'
_CPP26_VERSION = '>=16.0.0'
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