Define META_FREE in a way that doesn't cause -Wempty-body warnings.

anarazel · anarazel · commit 9b6bb9b47153 · 2014-09-26T02:55:38.000+02:00
That get rids of the only -Wempty-body warning when compiling postgres with gcc 4.8/9. As 6550b90 shows, it's useful to be able to use that option routinely. Without asserts there's many more warnings, but that's food for another commit.
diff --git a/contrib/fuzzystrmatch/dmetaphone.c b/contrib/fuzzystrmatch/dmetaphone.c
@@ -195,7 +195,7 @@ dmetaphone_alt(PG_FUNCTION_ARGS)
  * in a case like this.
  */
 
-#define META_FREE(x)			/* pfree((x)) */
+#define META_FREE(x) ((void)true) /* pfree((x)) */
 #else							/* not defined DMETAPHONE_MAIN */
 
 /* use the standard malloc library when not running in PostgreSQL */
