i have to regen several 3rd party’s configure script/Makefile.in by running autoreconf in src/externls/* to fix build failure.
i have been using pkgsrc/deve/autoconf, but it seems that i have to use src/gnu/dist/autoconf(if MKMAINTAINERTOOLS=yes is set in mk.conf, GNU autoconf is built and installed as a part of USETOOLS).
but it’s version is too old and have many problems(such as config.guess can’t detect ARM 64bit). so need to be latest version.
and more, external/lgpl3/mpfr/dist require not only autoconf but autoconf-archive too(because it use non standard macro AX_PTHREAD), let’s make it USETOOLS too.