D11771: Fix not working maxima backend, due to a missing file

[Nikita Sirgienko]

sirgienko created this revision.
sirgienko added a reviewer: Cantor.
sirgienko added a project: Cantor.
Restricted Application added a subscriber: KDE Edu.
Restricted Application added a project: KDE Edu.
sirgienko requested review of this revision.

REVISION SUMMARY
  Maxima backend don't work: you run entry, but calculation never ends. It's happend, because backend use special lisp configuration file (`cantor-initmaxima.lisp`) for better output processing but the file don't exist, bacause it have be removed in 616dc4159c7bbeeca962af58adbcccd025ddc723 <https://phabricator.kde.org/R55:616dc4159c7bbeeca962af58adbcccd025ddc723>, I think, accidentally. So, If you have this file (from previous cantor installation, for example) all is okey, but if you don't, you can't run maxima entries. So I have recovered the file.
  
  But there is some change, compared `Application/15.12`: Output is plain text, instead nice LaTeX image. I think, it bug too and i will try solve it later.

TEST PLAN
  1. remove purge cantor installation
  2. check, that `cantor-initmaxima.lisp` have be removed from `share/cantor/maximabackend`
  3. reinstall cantor without patch and check, that maxima backend don't calculate
  4. apply patch and reinstall cantor
  5. check, that `cantor-initmaxima.lisp` exist in `share/cantor/maximabackend`
  6. check, that maxima work normally

REPOSITORY
  R55 Cantor

REVISION DETAIL
  https://phabricator.kde.org/D11771

AFFECTED FILES
  src/backends/maxima/CMakeLists.txt

To: sirgienko, #cantor
Cc: #cantor, #kde_edu, narvaez, apol
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