> > glibc will provide a syscall return wrapper to check if it's returning > > an _old_ EWOULDBLOCK value that needs to be translated to EAGAIN (not > > sure if this ever happens in our kernel now, perhaps in the future?). > > I was under the impression the kernel would not. IIRC, previous > discussions involving HPUX compatibility suggested the fix go into glibc.
The fix in glibc is a hack, glibc copies the linux kernel headers over without modification. There are no two separate sources of headers. > > To fix pppd, you have to rebuild it with a new glibc that changes > > EWOULDBLOCK to EAGAIN in the headers, and if neccessary change syscalls > > returning the old EWOULDBLOCK to the new EAGAIN. > > I thought patches had been submitted so pppd would accept both. > I see that it (a) has not and (b) SunOS has EWOULDBLOCK handling > in it's output() handler (see sys-sunos4.c). It looks like (a) is true. I don't see what you want to say about (b)? c.
