Fix for -fno-common

Index: pimd/pimd.c
--- pimd/pimd.c.orig
+++ pimd/pimd.c
@@ -63,6 +63,7 @@ int64_t                   qpim_rpf_cache_refresh_last 
 struct in_addr            qpim_inaddr_any;
 struct list              *qpim_ssmpingd_list = 0;
 struct in_addr            qpim_ssmpingd_group_addr;
+struct in_addr            qpim_all_pim_routers_addr;
 int64_t                   qpim_scan_oil_events = 0;
 int64_t                   qpim_scan_oil_last = 0;
 int64_t                   qpim_mroute_add_events = 0;
