[MacPorts] #53414: port selfupdate failed: Error installing new MacPorts base: command execution failed

[MacPorts]

#53414: port selfupdate failed: Error installing new MacPorts base: command
execution failed
-----------------------+-------------------
 Reporter:  gkshenaut  |      Owner:
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  base       |    Version:  2.3.5
 Keywords:             |       Port:
-----------------------+-------------------
 Running sudo port -v selfupdate fails with the following error tail:

 {{{
 configure: === configuring in vendor/tcl/unix
 (/opt/local/var/macports/sources/rsync.macports.org/release/base/vendor/tcl/unix)
 configure: error: no configure script found in vendor/tcl/unix
 Command failed: cd
 /opt/local/var/macports/sources/rsync.macports.org/release/base &&
 CC=/usr/bin/cc OBJC=/usr/bin/cc ./configure --prefix='/opt/local' --with-
 install-user='root' --with-install-group='wheel' --with-directory-
 mode='0755' --enable-readline && make SELFUPDATING=1 && make install
 SELFUPDATING=1
 Exit code: 1
 Error: Error installing new MacPorts base: command execution failed
 To report a bug, follow the instructions in the guide:
     http://guide.macports.org/#project.tickets
 Error: /opt/local/bin/port: port selfupdate failed: Error installing new
 MacPorts base: command execution failed
 }}}

 I'm currently running macport v. 2.3.5, macos 10.12.3, XCode 8.2.1

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Ticket URL: <https://trac.macports.org/ticket/53414>
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