@@ -339,10 +339,14 @@
 ])
 AC_MSG_RESULT($atomic_ops)
 
 AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
 AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32")
+
+AC_CHECK_FUNC(gmtime_r, [
+	AC_DEFINE(HAVE_GMTIME_R, 1, [Whether we have gmtime_r])
+])
 
 AC_CHECK_HEADER(poll.h, [
 	AC_DEFINE(OF_HAVE_POLL, 1, [Whether poll is supported])
 ])
 AC_CHECK_HEADERS(sys/select.h, [