3 # Copyright (C) 1996-1997, 1999-2007, 2009-2019 Free Software
6 # This file is free software; the Free Software Foundation
7 # gives unlimited permission to copy and/or distribute it,
8 # with or without modifications, as long as this notice is preserved.
10 # Written by Jim Meyering and Paul Eggert.
12 AC_DEFUN([gl_FUNC_GNU_STRFTIME],
14 # This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE.
15 AC_REQUIRE([AC_STRUCT_TIMEZONE])
17 AC_REQUIRE([gl_TM_GMTOFF])
19 AC_CHECK_FUNCS_ONCE([tzset])
21 AC_DEFINE([my_strftime], [nstrftime],
22 [Define to the name of the strftime replacement function.])