stdcompat <= 18 requires automake Due to ``` # cd . && /bin/sh /home/opam/.opam/4.14/.opam-switch/build/stdcompat.18/missing automake-1.15 --foreign # /home/opam/.opam/4.14/.opam-switch/build/stdcompat.18/missing: line 81: automake-1.15: command not found # WARNING: 'automake-1.15' is missing on your system. # 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: # <http://www.gnu.org/software/automake> # It also requires GNU Autoconf, GNU m4 and Perl in order to run: # <http://www.gnu.org/software/autoconf> # <http://www.gnu.org/software/m4/> # <http://www.perl.org/> # make: *** [Makefile:895: Makefile.in] Error 1 ```