@comicfans , I tried also with our project at work. But that fails. We are using Qt. There are bunch of Qt related tests failing too. Ill try on windows with unit tests to see what numbers I'll get. Windows was working better before (back in Jan) as far as I remember.
for first situation ,I am afraid that we can not simply move same output rule to common bff, because different rules is needed by different config,they just outputs same file, I think this should be addressed by make cmake script multi config awared
for my llvm build test ,I also found visual studio debug/release config have same output (which I think it should not)