Where are the specific WARNS=n defined?

[Paul Goyette <paul%whooppee.com@localhost>]

I'm trying to modularize a couple of drivers, and one of them is 
generating some gcc errors due to comparison of signed and unsigned 
values.

The driver module is currently being compiled with WARNS=4 (just picked 
that up from another Makefile).  Is there a more appropriate WARNS=n to 
use to permit the comparison?  Or should I simply add

        CCOPTS+= -Wno-sign-compare

(which is used when the driver is being compiled as part of a kernel)?



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