> 2. Fix sh to deal with group'd commands and -e. Then provide nbsh as a host
>    tool and tell make to use it.

IIRC there is an outstanding bug on netbsd's /bin/sh where:
$ (set -e;(exit 1);echo foo)
outputs foo.

> 3. Go through all the Makefile's and change (... && ...) into .... && ...

Or just ... ; ...
May even be worth changing make so that it understands cd xxx; yyy

	David

-- 
David Laight: david@l8s.co.uk