On Wed, 2023-02-15 at 13:57 -0500, Ken Brown wrote: > If I simply run 'make -j13 world' without using the Build script, it > doesn't hang. I don't know if this provides any clue as to where the > problem is.
Speaking for myself, it doesn't give me any clues. I don't see why it should matter. But there seem to be a lot of complexities around cygwin and its support for complex POSIX concepts, so I can't say for sure. Maybe someone more familiar with how Cygwin emulates mkfifo() might have some insights.