https://bugs.winehq.org/show_bug.cgi?id=51465
--- Comment #26 from algebro@tuta.io --- (In reply to Zebediah Figura from comment #25)
It's not required; it actually specifies the default for any libraries compiled with winegcc, but we are already specifying the CRT library explicitly via makedep (even for modules currently compiled with ucrtbase). I think it makes sense for winelib software to use ucrtbase by default, in which case we don't want the above hunk.
Great, thanks. Importing ucrtbase in dsound got past that, now it's a matter of adding it to the other DLLs that need it (d3dx9_29.dll looks like it needs it next).