To build right now you'll need new sys/dcmd_misc.h, sys/iomsg.h in your stage.

You can get them from the CoreOS repository (in lib/c/public/):

http://community.qnx.com/sf/scm/do/listRepositories/projects.core_os/scm

To build e1000 and rtl18169 drivers you'll also need a new hw/pci.h. For now, just put Makefile.dnm to avoid building 
them.

See also http://community.qnx.com/sf/go/topc11930

/P