[MacPorts] #40476: configure: autodetection Tcl config variables fail

[MacPorts]

#40476: configure: autodetection Tcl config variables fail
---------------------------------+--------------------------------
 Reporter:  leo@…                |      Owner:  macports-tickets@…
     Type:  defect               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  base                 |    Version:  2.2.99
 Keywords:  configure tcl tclsh  |       Port:
---------------------------------+--------------------------------
 {{{
 $ ./configure --enable-readline
 checking build system type... x86_64-apple-darwin13.0.0
 ...
 checking whether completion_matches is declared... yes
 checking for Tcl configuration... configure: error: Can't find Tcl
 configuration definitions
 $
 }}}

 configure try to find and use 'tclConfig.sh'

 Mac OSX 10.9 Mavericks Preview 6 and Xcode don't have 'tclConfig.sh'.

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Ticket URL: <https://trac.macports.org/ticket/40476>
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