build, gitlab-ci: add a script to cross-build GIMP with Gitlab CI.
This is a test and I don't expect it to work out-of-the-box, but well… I have no idea how else to check if new CI rules would work other than making a MR here!
Edited by Jehan
This is a test and I don't expect it to work out-of-the-box, but well… I have no idea how else to check if new CI rules would work other than making a MR here!