Undo last change; it was a typo.

diff --git a/lib/autoconf/types.m4 b/lib/autoconf/types.m4
index 1ec2a8ceeb4cd646f9e360322dfc2bd7ff6f62ff..1c45101ed7e8144e0a352cc649b60e5005fa5ac6 100644 (file)
--- a/lib/autoconf/types.m4
+++ b/lib/autoconf/types.m4
@@ -949,7 +949,7 @@ else
   AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
 [AC_LINK_IFELSE([AC_LANG_PROGRAM(
 [[#include <time.h>
-#ifndef HAVE_DECL_TZNAME
+#if !HAVE_DECL_TZNAME
 extern char *tzname[];
 #endif
 ]],