[MacPorts] #61180: duplicity 0.8.15 fails to build

[MacPorts]

#61180: duplicity 0.8.15 fails to build
---------------------+--------------------
 Reporter:  khinsen  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.6.3
 Keywords:           |       Port:
---------------------+--------------------
 System info:
 {{{
 :debug:sysinfo macOS 10.14 (darwin/18.7.0) arch i386
 :debug:sysinfo MacPorts 2.6.3
 :debug:sysinfo Xcode 11.3.1
 :debug:sysinfo SDK 10.14
 :debug:sysinfo MACOSX_DEPLOYMENT_TARGET: 10.14
 }}}

 Error message from {{{port install duplicity}}}:
 {{{
 --->  Building duplicity
 Error: Failed to build duplicity: command execution failed
 }}}

 See attached log for the details. The error message in the log file is:
 {{{
 :info:build   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/setuptools/installer.py", line 83, in fetch_build_egg
 :info:build     raise DistutilsError('the `allow-hosts` option is not
 supported '
 :info:build distutils.errors.DistutilsError: the `allow-hosts` option is
 not supported when using pip to install requirements.
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61180>
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