Merge branch...
Merge branch '354-build-system-cleanup-refactor-check-whether-a-variant-has-to-be-built' into 'master'
Resolve "build-system: cleanup, refactor check whether a variant has to be built"
Closes #354 (closed)
See merge request !355 (merged)
(cherry picked from commit 9bdfc49a)
b2ec1e46 build-system: cleanup and refactor which variants to build
Co-authored-by: gsell achim.gsell@psi.ch