Pretty sure It's the latter. I don't use MinGW enough enough to know how
compatible it is with msvc, but this uses a bunch of COM APIs and funny
Microsoftisms like declspec(novtable), declspec(uuid), etc, and the MinGW
bot was throwing hundreds of compiler errors. If there's a way to make it
work I
Should this be a compile-time thing? I thought in general we try to make
clang-built-with-msvc and clang-built-with-mingw behave roughly the same
except for a different default triple, i.e. maybe this should be keyed off
the triple at runtime instead of with a compile-time ifdef. Or do some of
the
