diff --git a/lib/debug.c b/lib/debug.c
index c4b67a5..252e4dd 100644
--- a/lib/debug.c
+++ b/lib/debug.c
@@ -4,6 +4,7 @@
 void 
 debug_print_trace (int signal)
 {
+#ifdef HAVE_GLIBC_BACKTRACE
     void *array[10];
     size_t size;
     char **strings;   
@@ -18,6 +19,7 @@
       printf ("%s\n", strings[i]);
 
     free (strings);
+#endif /* HAVE_GLIBC_BACKTRACE */
     
     exit(1);
 }
diff --git a/lib/keychain.c b/lib/keychain.c
index dbf431a..527da05 100644
--- a/lib/keychain.c
+++ b/lib/keychain.c
@@ -921,7 +921,7 @@
 		vty_out (vty, " infinite");
 	      else if (key->accept.duration)
 		vty_out (vty, " duration %ld",
-			 key->accept.end - key->accept.start);
+			 (long)(key->accept.end - key->accept.start));
 	      else
 		{
 		  keychain_strftime (buf, BUFSIZ, &key->accept.end);
@@ -938,7 +938,7 @@
 	      if (key->send.end == -1)
 		vty_out (vty, " infinite");
 	      else if (key->send.duration)
-		vty_out (vty, " duration %ld", key->send.end - key->send.start);
+		vty_out (vty, " duration %ld", (long)(key->send.end - key->send.start));
 	      else
 		{
 		  keychain_strftime (buf, BUFSIZ, &key->send.end);