Newbie GAR make build issue.

Hi,
I'm new to gar and I've been trying to build a lnx-bbc iso (specifically 
so I could put a /opt directory in it).  When I umcompress the 2.1 
release with sources and do a make build from $HOME/gar/meta/lnx-bbc I 
get a make error for libstd.h unistd.h (I think during the gcc compile 
but my xterm history is too short) .  Now initially I thought it was my 
distro that was lacking the files but even after installing them (I'm 
using SuSE 8.0 so I haven't goofed with ld.so.conf ) I still can't get 
the make to run through.  Is there some way to sort this out?

Thanks in advance.
Robert.