grep failed to compile when BB_FEATURE_CLEAN_UP was defined -- types were wrong.
diff --git a/grep.c b/grep.c
index fb7df24..03cc9f8 100644
--- a/grep.c
+++ b/grep.c
@@ -221,8 +221,8 @@
 
 	/* destroy all the elments in the array */
 	while (--nregexes >= 0) {
-		regfree(regexes[nregexes]);
-		free(regexes[nregexes]);
+		regfree(&regexes[nregexes]);
+		free(&regexes[nregexes]);
 	}
 }
 #endif