diff -up Hamlib-4.5.5/tests/memload.c.aaaa Hamlib-4.5.5/tests/memload.c
--- Hamlib-4.5.5/tests/memload.c.aaaa	2024-09-27 00:26:05.524462705 +0200
+++ Hamlib-4.5.5/tests/memload.c	2024-09-27 00:28:25.596543302 +0200
@@ -23,6 +23,7 @@
 
 #include <hamlib/rig.h>
 #include "misc.h"
+#include <stdlib.h>
 
 #ifdef HAVE_XML2
 #  include <libxml/parser.h>