
use-project /lib2 : lib2 ;
use-project /lib3 : lib3 ;

make a.exe : a.obj lib/b.obj @/lib2/c.obj lib2@d.obj lib2@helper/e.obj @/lib3/f.obj : yfc-link ;
make a.obj : a.cpp : yfc-compile ; 

build-project lib2 ;
build-project lib ;