Cannot install gnu prolog (gprolog) on Yosemite

[benshimo@…]

Have reinstalled Macports after migrating to Yosemite.
No problem with installing macports and Erlang onto of it
Trying to install gnuprolog (gprolog) fails with the following message

Warning: All compilers are either blacklisted or unavailable; defaulting to first fallback option
--->  Computing dependencies for gprolog
--->  Building gprolog
Error: org.macports.build for port gprolog returned: command execution failed
Please see the log file for port gprolog for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gprolog/gprolog/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port gprolog failed

[larryv (Lawrence Velázquez)]

Please clean gprolog, try installing again, and attach the main.log file mentioned in the error message.

[benshimo@…]

log file of gprolog

[pmoura (Paulo Moura)]

I'm aware of this issue. I need to find some free time to look into it. Meanwhile, a workaround is to download from the GNU Prolog website the package installer (built with MacPorts) for Mountain Lion.

[markemer (Mark Anderson)]

This is still happening on Sierra.