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-rw-r--r--m4/mktime.m43
1 files changed, 2 insertions, 1 deletions
diff --git a/m4/mktime.m4 b/m4/mktime.m4
index 5a0f2d88ab..23cad732ff 100644
--- a/m4/mktime.m4
+++ b/m4/mktime.m4
@@ -1,4 +1,4 @@
-# serial 26
+# serial 27
dnl Copyright (C) 2002-2003, 2005-2007, 2009-2016 Free Software Foundation,
dnl Inc.
dnl This file is free software; the Free Software Foundation
@@ -30,6 +30,7 @@ AC_DEFUN([gl_FUNC_MKTIME],
dnl in Autoconf and because it invokes AC_LIBOBJ.
AC_CHECK_HEADERS_ONCE([unistd.h])
AC_CHECK_DECLS_ONCE([alarm])
+ AC_CHECK_FUNCS_ONCE([tzset])
AC_REQUIRE([gl_MULTIARCH])
if test $APPLE_UNIVERSAL_BUILD = 1; then
# A universal build on Apple Mac OS X platforms.