Oops.  Yes, 'Timer' is now a defined type so can't be used as an
enumerated constant.  Looks like we didn't try compiling this
driver recently.  I changed 'Timer' to 'Timerbit' and it compiled.

/n/emelieother/plan9//sys/src/9/pc/ether8139.c:76 c /sys/src/9/pc/ether8139.c:76
< 	Timer		= 0x4000,	/* Timer */
---
> 	Timerbit		= 0x4000,	/* Timer */
/n/emelieother/plan9//sys/src/9/pc/ether8139.c:355 c /sys/src/9/pc/ether8139.c:355
< 	csr16w(ctlr, Imr, Serr|Timer|Fovw|PunLc|Rxovw|Ter|Tok|Rer|Rok);
---
> 	csr16w(ctlr, Imr, Serr|Timerbit|Fovw|PunLc|Rxovw|Ter|Tok|Rer|Rok);
/n/emelieother/plan9//sys/src/9/pc/ether8139.c:588 c /sys/src/9/pc/ether8139.c:588
< 			if(isr & Timer)
---
> 			if(isr & Timerbit)