I played with one tonight at a local museum. Had 4 lines on it.
It works on all of them, including OSX.
OSX inherited SIGINFO from the BSDs, OpenBSD, FreeBSD, Dragonfly, and NetBSD all have it. Linux doesn't. I don't know why; but Google in the past has told me that patches to add it were rejected about 10 years ago.
I played with one tonight at a local museum. Had 4 lines on it.
It works on all of them, including OSX.
OSX inherited SIGINFO from the BSDs, OpenBSD, FreeBSD, Dragonfly, and NetBSD all have it. Linux doesn't. I don't know why; but Google in the past has told me that patches to add it were rejected about 10 years ago.