[MacPorts] #67285: Build fails on macOS 10.13

[MacPorts]

#67285: Build fails on macOS 10.13
--------------------------+------------------------
 Reporter:  workflowsguy  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.8.1
 Keywords:                |       Port:  Difftastic
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 sudo port -t install difftastic
 --->  Computing dependencies for difftastic
 --->  Fetching archive for difftastic
 --->  Attempting to fetch difftastic-0.46.0_0.darwin_17.x86_64.tbz2 from
 http://packages.macports.org/difftastic
 --->  Attempting to fetch difftastic-0.46.0_0.darwin_17.x86_64.tbz2 from
 http://nue.de.packages.macports.org/difftastic
 --->  Attempting to fetch difftastic-0.46.0_0.darwin_17.x86_64.tbz2 from
 http://mse.uk.packages.macports.org/difftastic
 --->  Fetching distfiles for difftastic
 --->  Verifying checksums for difftastic
 --->  Extracting difftastic
 --->  Configuring difftastic
 --->  Building difftastic
 Error: Failed to build difftastic: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_difftastic/difftastic/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there is a bug.
 Error: Processing of port difftastic failed

-- 
Ticket URL: <https://trac.macports.org/ticket/67285>
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