[MacPorts] #16802: Installing gimp2 fails due to gtk2 error: "Error: Unable to execute port: can't read "configure.universal_sysroot": no such variable"

[MacPorts]

#16802: Installing gimp2 fails due to gtk2 error: "Error: Unable to execute port:
can't read "configure.universal_sysroot": no such variable"
---------------------------------+------------------------------------------
  Reporter:  koch.manuel at web.de  |       Owner:  nox at macports.org                      
      Type:  defect              |      Status:  new                                   
  Priority:  Normal              |   Milestone:  Port Bugs                             
 Component:  ports               |     Version:  1.6.0                                 
Resolution:                      |    Keywords:  gtk2 gimp2 configure.universal_sysroot
      Port:  gtk2                |  
---------------------------------+------------------------------------------
Changes (by blb at macports.org):

  * owner:  dbevans at gmail.com => nox at macports.org
  * port:  gimp2 gtk2 => gtk2


Comment:

 It appears that {{{configure.universal_sysroot}}} is currently a trunk-
 only variable, which makes some universal work difficult (I have a couple
 of updates for ports using this variable).

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Ticket URL: <http://trac.macports.org/ticket/16802#comment:2>
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