diff -wBbur wol-0.7.1/lib/realloc.c wol-0.7.1.n/lib/realloc.c
--- wol-0.7.1/lib/realloc.c 2002-03-20 03:45:12.000000000 +0300
+++ wol-0.7.1.n/lib/realloc.c 2025-09-29 00:09:36.432146986 +0300
@@ -24,8 +24,12 @@
#include <sys/types.h>
-char *malloc ();
-char *realloc ();
+#if STDC_HEADERS
+# include <stdlib.h>
+#else
+void *malloc ();
+void *realloc ();
+#endif
/* Change the size of an allocated block of memory P to N bytes,
with error checking. If N is zero, change it to 1. If P is NULL,