BUG: ignore macOS minor version

Signed-off-by: Filipe Laíns <lains@riseup.net>

Author: FFY00

mesonpy/__init__.py

@@ -275,6 +275,9 @@ def platform_tag(self) -> str:
                 # latter specifies the target macOS version Python was built
                 # against.
                 parts[1] = platform.mac_ver()[0]
+                # Only pick up the major version
+                # https://github.com/FFY00/meson-python/issues/160
+                parts[1] = parts[1].split('.')[0]
 
             if parts[1] in ('11', '12'):
                 # Workaround for bug where pypa/packaging does not consider macOS