I found the sysctl and upped it by about double. Now:

root@chronos 32} pushd /usr/src/lib/libc
/usr/src/lib/libc /usr/src/sys/kern /var/tmp /tmp
root@chronos 33} limit datasize unlimited
root@chronos 34} limit stacksize unlimited
root@chronos 35} limit
cputime         unlimited
filesize        unlimited
datasize        32768 kbytes
stacksize       32768 kbytes
coredumpsize    unlimited
memoryuse       21568 kbytes
memorylocked    7189 kbytes
maxproc         80
openfiles       64
root@chronos 36} make
load: 0.69  cmd: make 226 [running] 40.97u 2.63s 87% 3992k
building standard c library
load: 2.14  cmd: nm 236 [running] 5.31u 8.46s 28% 1616k
/usr/bin/nm: strpbrk.o: Cannot allocate memory
load: 2.56  cmd: sed 255 [running] 4.63u 0.27s 19% 536k
ar: libc.a: Cannot allocate memory
*** Error code 1

Stop.
231.3u 135.4s 9:07.03 67.0% 0+0k 2467+155io 1484pf+0w

WTF! I think the tools are leaking memory in a really serious way.

	sigh,

	Erik <fair@clock.org>