***** automake *****
***** PWD: /tmp/portage/net-mail/courier-imap-5.0.11/work/courier-imap-5.0.11/libs/rootcerts
***** automake --add-missing --copy --foreign --force-missing

configure.ac:11: error: version mismatch.  This is Automake 1.16.3,
configure.ac:11: but the definition used by this AM_INIT_AUTOMAKE
configure.ac:11: comes from Automake 1.16.1.  You should recreate
configure.ac:11: aclocal.m4 with aclocal and run automake again.