-# Redefine AC_FUNC_MKTIME, to fix a bug in Autoconf 2.61a and earlier.
-# This redefinition can be removed once a new version of Autoconf is assumed.
-# The redefinition is taken from
-# <http://cvs.sv.gnu.org/viewcvs/*checkout*/autoconf/autoconf/lib/autoconf/functions.m4?rev=1.119>.