On Sat, 18 Jan 1997 10:40:13 -0800 (PST) 
 "Gerald C. Simmons" <simmons@darykon.wa.com> wrote:

 > If I compile a kernel with "standard" serial port options, then add option
 > COM_HAYESP in the config file, conf <machine>, make depend (in target
 > directory,) then make, Why doesn't anything force the com.c driver to
 > recompile? Seems I have to delete com.o inorder to force it to rebuild the
 > driver. I thought "make depend" was suppost to cover this.

...In order to do this, we'd have to emit a header file for every
"well-known" option...  It would require some changes to config(8).

I've thought about doing this... and, since I've been hacking on
config(8) for other reasons anyhow, I just might get around to
this RSN.

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939