Thanks @Mik. Did you also have this error before turning off Qt support?
LINK : fatal error LNK1181: cannot open input file 'ofstd.lib'
The reason I posted this in the first place is that I had to rebuild all Slicers that I had compiled from scratch because of the same error that I now get when trying to build SlicerRT with the latest Plastimatch. So I assumed that this is a common issue that people are aware of.
What I built exactly with the latest SlicerRT (and got the error above) is this branch, which I just pushed after rebasing the previous branch slicerrt-1.9.3-2022.06.15-77b40bd3 on the latest Plastimatch on gitlab (the same hash as what @Mik mentions).
Update: what is strange is that the said file (ofstd.lib) is there (S5R\DCMTK-build\lib\Release\ofstd.lib).