ENH: cache platform tag

FFY00 · FFY00 · commit fb4dfb57cd26 · 2022-09-29T09:55:48.000+01:00
This will prevent the duplicated MACOSX_DEPLOYMENT_TARGET message.

Signed-off-by: Filipe Laíns &lt;lains@riseup.net&gt;
diff --git a/mesonpy/__init__.py b/mesonpy/__init__.py
@@ -253,7 +253,7 @@ def abi_tag(self) -> str:
             return selected_tag.abi
         return 'none'
 
-    @property
+    @cached_property
     def platform_tag(self) -> str:
         if self.is_pure:
             return 'any'
