Fix typo in configure.in, and propagate configure.in changes from r64002
to configure and pyconfig.h.in.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 2899152..1c2d377 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -384,6 +384,9 @@
/* Define to 1 if you have the `log1p' function. */
#undef HAVE_LOG1P
+/* Define this if you have the type long double. */
+#undef HAVE_LONG_DOUBLE
+
/* Define this if you have the type long long. */
#undef HAVE_LONG_LONG
@@ -887,6 +890,9 @@
/* The size of `long', as computed by sizeof. */
#undef SIZEOF_LONG
+/* The size of `long double', as computed by sizeof. */
+#undef SIZEOF_LONG_DOUBLE
+
/* The size of `long long', as computed by sizeof. */
#undef SIZEOF_LONG_LONG