refactor: standard arch checking in one place

cibuildwheel/macos.py

@@ -4,15 +4,14 @@ import shutil
 import subprocess
 import sys
 import tempfile
-import textwrap
 from pathlib import Path
 from typing import Dict, List, NamedTuple, Optional, Sequence
 
 from .environment import ParsedEnvironment
 from .logger import log
-from .util import (Architecture, BuildOptions, BuildSelector, NonPlatformWheelError,
+from .util import (BuildOptions, BuildSelector, NonPlatformWheelError,
                    download, get_build_verbosity_extra_flags, get_pip_script,
-                   install_certifi_script, prepare_command)
+                   install_certifi_script, prepare_command, allowed_architectures_check)
 from .typing import PathOrStr
 
 
@@ -187,11 +186,7 @@ def setup_python(python_configuration: PythonConfiguration,
 
 
 def build(options: BuildOptions) -> None:
-    if not options.architectures <= {Architecture.x86_64}:
-        raise ValueError(textwrap.dedent(f'''
-            Invalid archs option {options.architectures}. macOS only supports x86_64 for the moment.
-            If you want to set emulation architectures on Linux, use CIBW_ARCHS_LINUX instead.
-        '''))
+    allowed_architectures_check("macos", options)
 
     temp_dir = Path(tempfile.mkdtemp(prefix='cibuildwheel'))
     built_wheel_dir = temp_dir / 'built_wheel'