Ok, so for those who've been losing trying to build the C library 
(namely, mcount.so), I'm pretty sure this is related to a recent change 
that happened to the compiler.  The only difference between the compiler 
output from a working one and a broken one is that the broken one has this:

*** mcount.s.ok	Sat Apr  6 15:22:54 1996
--- mcount.s	Sat Apr  6 15:19:08 1996
***************
*** 8,13 ****
--- 8,14 ----
  	.ascii "$NetBSD: mcount.c,v 1.3 1995/02/27 12:54:42 cgd Exp $\0"
  .text
  	.align 4
+ 	.global __mcount
  	.type	 __mcount,@function
  	.proc	020
  __mcount:

I'm looking into it, but I'm not a compiler expert, so if anyone else has 
ideas, please share them :-)

--------------------------------------------------------------------------
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