
exe a : a.cpp b.cxx c.ui d.wd x.l y.x_pro lib/auxilliary ;
# This should not cause second compilation of a.cpp 
exe f : a.cpp b.cxx lib/auxilliary ;

#exe a : a.cpp b.cpp c.ui d.wd x.l y.x_pro ;

nm_exe e : e.cpp ;
