i typed "make osmocon" and "make
layer23" and got some output.but i did not
get the firmware binaries in src/target/firmware/board/compal_e88 and in
src/host/osmocon/osmocon, in src/host/layer23/src/misc and
layer23/src/mobile.
instead i got files like *.o,*.c etc..
Go read
http://bb.osmocom.org/trac/wiki/PreliminaryRequirements
and come back when you've completed what's asked on that page.
Cheers,
Sylvain