[ns] command to create mac_802-11.o in Makefile

[Arvind Swaminathan]

Hi,

In the Makefile only the objects are listed.  I don't see the rules
for creating the objects.  For instance, I would like to know the
place where the compile command to create mac-802-11.o is located
(since I want to add a -Ddegub flag to the cc command).

Thanks,
Arvind