[MacPorts] #61799: gimp2 2.10.22 export as gif or png does not display dialog

[MacPorts]

#61799: gimp2 2.10.22 export as gif or png does not display dialog
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 Reporter:  pietvo                             |      Owner:  (none)
     Type:  defect                             |     Status:  new
 Priority:  Normal                             |  Milestone:
Component:  ports                              |    Version:  2.6.4
 Keywords:  gimp, plugin, file save, gif, png  |       Port:
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 The gimp2 port has missing dialogs for export as gif or png. Only a basoc
 dialog appears, not the complete dialog where you can specify options such
 as animation for a gif.

 I traced the issue back to a wrong value of gimp_data_directory. It is not
 set, probably just the empty string. Both plugins (file-save-gif and file-
 save-png) use this value to find their ui file.
 For plugins it is not set properly, because in this version og gimp,
 plugins are in their own subdirectory within the plug-ins directory, and
 the algorithm in libgimpbase/gimpenv.c assumes that they are directly in
 the plug-ins directory.
 I have a patch for this. I added code for the subdirectory case (but I
 left the possibility of having a plugin directly in the plug-ins
 directory).

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Ticket URL: <https://trac.macports.org/ticket/61799>
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