🚀 go-pugleaf

More info:  

It appears that SUNOS 4.1 uses EAGAIN in a novel and interesting way.
Perhaps this relates to the new-fangled tty streams implementation, I
don't really know.

The observation: After outputting appoximately 950 bytes the to the
sub-process tty write returns with -1 and errno set to EAGAIN.  This
is a non-persistant error, and treating it the same as EWOULDBLOCK
*seems* to do the trick for me.

Here is the diff:

diff started at Thu Jul  4 14:24:47
cd /usr/local/emacs/src/
diff -c process.c.~1~ process.c
*** process.c.~1~	Tue Jan 15 20:28:48 1991
--- process.c	Thu Jul  4 14:20:17 1991
***************
*** 1908,1914 ****
  	if (rv < 0)
  	  {
  #ifdef EWOULDBLOCK
! 	    if (errno == EWOULDBLOCK)
  	      {
  		/* It would be nice to accept process output here,
  		   but that is difficult.  For example, it could
--- 1908,1914 ----
  	if (rv < 0)
  	  {
  #ifdef EWOULDBLOCK
! 	    if ((errno == EWOULDBLOCK) || errno == EAGAIN)
  	      {
  		/* It would be nice to accept process output here,
  		   but that is difficult.  For example, it could

diff exited abnormally with code 1 at Thu Jul  4 14:24:48

-wolfgang
---
Wolfgang Rupprecht    wolfgang@wsrcc.com (or) uunet!wsrcc!wolfgang
Snail Mail Address:   Box 6524, Alexandria, VA 22306-0524