README: changed URL format to <URL:...>; added section on Tk.
Makefile.in: run config.status in "make recheck".
configure.in: add test for hypot().
config.h.in, configure: since configure.in changed.
rest: the usual boring stuff.
diff --git a/config.h.in b/config.h.in
index 012863a..83f0c65 100644
--- a/config.h.in
+++ b/config.h.in
@@ -164,6 +164,9 @@
/* Define if you have the getwd function. */
#undef HAVE_GETWD
+/* Define if you have the hypot function. */
+#undef HAVE_HYPOT
+
/* Define if you have the link function. */
#undef HAVE_LINK