[MacPorts] #43208: PortIndex2MySQL.tcl: can't find package Tclx

[MacPorts]

#43208: PortIndex2MySQL.tcl: can't find package Tclx
---------------------------+--------------------------------
  Reporter:  ryandesign@…  |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  base          |    Version:  2.2.99
Resolution:                |   Keywords:
      Port:                |
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Comment (by ryandesign@…):

 I would love if we could find a way to fix all the Tcl scripts so that
 they use MacPorts tclsh8.5, but that the MacPorts prefix does not need to
 be hardcoded into them. For example, we already know the technique of
 having the script use `#!/bin/sh` as the first line, then re-launching the
 script under tclsh. Perhaps this technique could be modified to determine
 the MacPorts prefix programmatically (using e.g. `dirname $(dirname
 $(which port))`).

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Ticket URL: <https://trac.macports.org/ticket/43208#comment:3>
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