[Debian-astro-maintainers] Bug#753307: broken by tcl/tk 8.6

[Julian Taylor]

Package: skycat
Version: 3.1.2+starlink1~b-6
Severity: serious

blt now uses tcl/tk 8.6 while skycat is linked against 8.5 which leads
to startup failures of skycat:

Error in startup script: couldn't load file
"/usr/lib/skycat/libskycat3.1.2.so": libBLT.2.4.so.8.5:

on the ubuntu-motu mailing list (search skycat) there is a patch that
fixes this issue but it will still segfault on start due to itcl3
needing tcl 8.5. I have no fix for that.
A workaround would be to reintroduce a new blt linked against 8.5.
This is possible as blt versions its library by the tcl name.