community/libmicrohttpd: fix build
configure.ac:27: error: version mismatch. This is Automake 1.16.2,
configure.ac:27: but the definition used by this AM_INIT_AUTOMAKE
configure.ac:27: comes from Automake 1.16.1. You should recreate
configure.ac:27: aclocal.m4 with aclocal and run automake again.
WARNING: 'automake-1.16' is probably too old.
You should only need it if you modified 'Makefile.am' or
'configure.ac' or m4 files included by 'configure.ac'.
The 'automake' program is part of the GNU Automake package:
<https://www.gnu.org/software/automake>
It also requires GNU Autoconf, GNU m4 and Perl in order to run:
<https://www.gnu.org/software/autoconf>
<https://www.gnu.org/software/m4/>
<https://www.perl.org/>
make[3]: *** [Makefile:1128: Makefile.in] Error 63