jaw@dynamo.ecn.purdue.edu (Jim Wildman) (06/05/91)
System: 3/160 with MC68881 and 4 Meg of memory SunOS 4.1.1 Usual peripherals. Today I had occassion to recompile the kernal. As make was running, I noticed that it called cc with '-fsoft'. Since we have the MC68881 on the cpu board I thought I would make use of it. I changed /usr/kvm/sys/sun3/conf/Makefile.src to use '-f68881' and reran /etc/config. The make now calls cc with '-f68881' and runs fine until it gets to 'loading vmunix' where it croaks with a 'f68881_used undefined' error. What gives? Does it not make any difference to the kernal which floating point option I use? Is my MC68881 just a glorified heat sink? Did I miss a module when I loaded the system?