Calligra - FTBFS - due to VC?

[Ben Cooksley]

Hi Calligra Developers,

It appears Calligra currently fails to build on the CI system, due to
ifdef's which are dependent on VC variables. This is despite VC being
found (depending on a too new / too old version / missing an include?)

Please see https://build.kde.org/view/branchGroup%20kf5-qt5/job/calligra%20master%20kf5-qt5/5/PLATFORM=Linux,compiler=gcc/consoleFull

Could someone take a look and fix it please?

Thanks,
Ben