After installation of v. 6.4.1 on Windows host (XP SP3), this item has been added to the system environment:

MAKEFLAGS=-ID:/QNX/QNX641/target/qnx6/usr/include

( where D:/QNX is the path where I installed it)

This confuses other instances of "make" on the machine.
( For me, it broke Windows DDK build )

So please, consider not to install this evnironment var into the system environment, or prefix it by QNX_ or something.

Thanks in advance,
-- S.