Does this really work? Setting/creating variables inside IF statements. I remember I could not get them to work on my VC prompt or cmd prompt. After some googling it seemed you need to set `@setlocal EnableDelayedExpansion` variable for this to work.

Left this comment in the deps build script:
 `:: Note 2: We cannot do this inside the qt IF without @setlocal EnableDelayedExpansion.`