> > Maybe it's started before /usr is mounted, and so needs to be statically
> > linked ?
> 
> THANK YOU!  And thanks to Patrick and David for telling me how to find out
> if the program was dynamically linked.
> 
> 	% ldd /sbin/dhclient
> 	/sbin/dhclient:
> 	         -lc.12 => /usr/lib/libc.so.12

What you actually need to do is get it linked with /libs/libc.so.12
This is usually done by getting an 'RPATH  /lib:/usr/lib' entry' into
the headers.

Looking deeper you also need to get the program to request an elf
interpreter (ld.elf_so) from /libexec not from /usr/libexec.

bsd.shlib.mk does this if BINDIR is /bin or /sbin, otherwise you need
to add the relevant options yourself probably:
	-Wl,-dynamic-linker=/libexec/ld.elf_so
	-Wl,-rpath-link=/lib:/usr/lib

	David

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