--- We only want RULES pragmas to be picked up when -fglasgow-exts
--- is on, because the contents of the pragma is always written using
--- glasgow-exts syntax (using forall etc.), so if glasgow exts are not
--- enabled, we're sure to get a parse error.
+-- We only want RULES pragmas to be picked up when explicit forall
+-- syntax is enabled is on, because the contents of the pragma always
+-- uses it. If it's not on then we're sure to get a parse error.