[MacPorts] #63129: git @2.32.0_0 tk @8.6.11: gitk doesn't run when tk is installed

[MacPorts]

#63129: git @2.32.0_0  tk @8.6.11: gitk doesn't run when tk is installed
-------------------------+--------------------
 Reporter:  snarkhunter  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.7.1
 Keywords:               |       Port:  git tk
-------------------------+--------------------
 Using only default variants, gitk seg faults on startup if the tk port is
 active.

 Using +quartz -x11 variants, gitk doesn't seg fault, but it doesn't
 display any data in its windows, and when it quits it prints
 {{{
 Error in startup script: window "." was deleted before its visibility
 changed
     while executing
 "tkwait visibility ."
     (file "/opt/local/bin/gitk" line 12661)
 }}}

 Deactivating tk fixes gitk in both cases.

 I'm using Xcode 12.4 on Catalina 10.15.7.  All ports are built from source
 because I switch between x11 and quartz variants.

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Ticket URL: <https://trac.macports.org/ticket/63129>
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