[MacPorts] #56631: Error: Failed to build libgcc: command execution failed on High Sierra

[MacPorts]

#56631: Error: Failed to build libgcc: command execution failed on High Sierra
---------------------------------+--------------------
 Reporter:  DackJempsey          |      Owner:  (none)
     Type:  defect               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.5.2
 Keywords:  libgcc, High Sierra  |       Port:
---------------------------------+--------------------
 I have been trying to install gcc5/6 on my mac for a while now. I keep
 trying clean and uninstall and I keep getting this:

 Error: Failed to build libgcc: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc6/libgcc/main.log
 for details.

 I will include the log so that we can look it over, but I have been
 through it a couple of times, and couldn't find the problem. I am sure
 that it has something to do with these warnings it kicks:

 Warning: no archive_cxx_stdlib configured for site 'macports_archives'
 Warning: no archive_delete_la_files configured for site
 'macports_archives'
 Warning: no archive_cxx_stdlib configured for site 'macports_archives'
 Warning: no archive_delete_la_files configured for site
 'macports_archives'
 Warning: no archive_cxx_stdlib configured for site 'macports_archives'
 Warning: no archive_delete_la_files configured for site 'macports_archives

 I do not have enough knowledge to troubleshoot, and I tried the internet
 but I found zero results.

-- 
Ticket URL: <https://trac.macports.org/ticket/56631>
MacPorts <https://www.macports.org/>
Ports system for macOS