Fix implicit declaration of functions.
--- include/libipgeo.h.in.orig	2005-08-17 11:45:05.000000000 -0500
+++ include/libipgeo.h.in	2021-11-25 13:26:09.000000000 -0600
@@ -265,6 +265,9 @@
 int
 ipgeo_getdbt(ipgeo_t *ipg);
 
+u_int32_t
+ipgeo_getcomps(ipgeo_t *ipg);
+
 #endif  /* __LIBIPGEO_H */
 
 /* EOF */