--- Map8.xs

+++ Map8.xs

@@ -348,7 +348,7 @@

 	Map8* m2

 	PREINIT:

 	    STRLEN len;

-	    STRLEN rlen;

+	    int rlen;

 	    char*  res;

 	INPUT:

 	    char* str = SvPV(ST(2), len);