<hr /><i>bharder added on 2011-05-29 18:21:17 UTC:</i><br />
<pre>
kamloops$ uname -a 
NetBSD kamloops 5.99.52 NetBSD 5.99.52 (kamloops) #80: Sat May 28 14:09:40 PDT 2011  root@kamloops:/usr/obj/sys/arch/amd64/compile/kamloops amd64
kamloops$ which make
/usr/bin/make
kamloops$ make
make: don't know how to make sh. Stop

make: stopped in /home/bch/work/fossil
kamloops$ 
</pre>

With gnu make (gmake on my system), builds fine. The patch I submitted was tested on my system with both BSD make and GNU make and both built fine.