Eli Zaretskii wrote: > > I know about this method, but I'm not sure it does what we want here. > > The number used by this method is not guaranteed to be unique on some > > versions of Windows. More importantly, it only works for disk files, > > I don't know whether it reports a meaningful value for the console > > device or the null device. > > Testing clearly shows it doesn't: GetFileInformationByHandle simply > fails for handles open on console devices and the null device. And we > will be comparing handles for console devices in the majority of use > cases here.
That's right. Or perhaps pipes (I post-process make's output, to handle the directories in messages etc. and I suppose the mentioned Emacs mode does something similar). > I researched this a bit, and eventually succeeded in finding a way > that is good enough for both disk files, pipes, and console devices. Good. (And the null device, I suppose. Though it doesn't really matter if we write to the null device combined or separate. ;-) > > > > > > . STREAM_OK uses fcntl and F_GETFD which both don't exist on > > > > > > Windows. > > > > > > Basically we need just any call that succees for a valid file and > > > fails otherwise. > > Found a reasonable solution for that as well. OK, so only one problem left. _______________________________________________ Bug-make mailing list Bug-make@gnu.org https://lists.gnu.org/mailman/listinfo/bug-make
