spring/spring — comment on commit 56d85db8609c618aae2b16abb327ae43542892bd
File:  line 0
By hoijui:

we guarantee in CMake that one of the two is always defined. if you don't trust that, or you want to support other build systems, you should generate a compile error if this does not hold true. this can be done in a single, central place. we have that for other stuff already, eg:
https://github.com/spring/spring/blob/40d0ebfc9256ed997431c287c5a458969b6b7790/rts/lib/streflop/streflop.h#L16