Index: zonec.c
===================================================================
--- zonec.c.orig
+++ zonec.c
@@ -20,7 +20,13 @@
 #include <strings.h>
 #endif
 #include <unistd.h>
+#if !defined(__USE_XOPEN)
+#define __USE_XOPEN /* glibc2 needs this */
 #include <time.h>
+#undef __USE_XOPEN
+#else
+#include <time.h>
+#endif
 
 #include <netinet/in.h>