Gnumach warnings clean-up round 1

[Barry deFreese]

Hey folks,

I was looking at cleaning up many of the warnings when building 
gnumach-1-branch.  I have only gotten through the gnumach/ipc/ dir so far 
but before I went any further I wanted some opinions on whether I was way 
off base on what I have done so far??

Thanks,

Barry deFreese (aka bddebian)

gnumach_1_warnings_1.diff
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