Dear maintainer, I am requesting stabilization for at least =sys-devel/autoconf-archive-2015.02.24 which is the first version containing the AX_COMPILER_FLAGS macro which I need in some packages (app-admin/rsyslog-8.20; dev-libs/libfastjson...). However the latest version (=sys-devel/autoconf-archive-2016.03.20-r1) should also be ready for stabilization (in tree for >30 days, no open bugs...). Your decision!
arm stable
Stable on alpha.
amd64 stable
done the rest