Avoid syntax error on platforms that have neither LOCALE_T nor ICU.

tglsfdc · tglsfdc · commit 457a44487328 · 2017-03-23T23:18:52.000-04:00
Buildfarm member anole sees this union as empty, and doesn't like it.
diff --git a/src/include/utils/pg_locale.h b/src/include/utils/pg_locale.h
@@ -80,6 +80,7 @@ struct pg_locale_t
 			UCollator *ucol;
 		} icu;
 #endif
+		int			dummy;		/* in case we have neither LOCALE_T nor ICU */
 	} info;
 };
 
