On Tue, 27 Oct 2020 13:59:21 +0100, Jannick wrote: > If the system makes configure read in a config.site script, then > > 36: autoupdating AC_OBSOLETE FAILED (tools.at:1342) > > because the comparison of config.log is not prepared to see the additional > line in config.log > > configure: loading site script /etc/config.site > > Here the relevant output snip when running " make check > TESTSUITEFLAGS='-x -d -v 36' " on my system with config.site: > [...] > ++ ./configure > --- - 2020-10-27 13:42:15.389259100 +0100 > +++ /c/autotools/autoconf/tests/testsuite.dir/at-groups/36/stdout > 2020-10-27 13:42:15.288410800 +0100 > @@ -1,3 +1,4 @@ > +configure: loading site script /etc/config.site > dst=dst src=src > configure: creating ./config.status Far cleaner solution: simply pass CONFIG_SITE=\"\" to the first argument of AT_CHECK_CONFIGURE and leave configure_options alone.