[Xcb] xcb with BSD make and on DragonFly

[Barton C Massey]

Actually, probably the right thing here is to get autoconf
to help you.  This is the kind of thing it's supposed to be
for. :-)

	Bart

In message <20060311190156.GB5974 at id.minilop.net> you wrote:
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> In summary:
> 
> Solaris and DragonFly use a char* for iov_base (though Solaris hides it
> behind the "caddr_t" name), while {Open,Net,Free}BSD and Linux use
> void*.
> 
> Linux and Solaris both have the caddr_t typedef, which is a char* in
> both cases. I'm guessing this typedef is available everywhere.
> 
> I could choose to cast all pointers either to char* or to void*, and
> either choice would work on all of these platforms. I'm tempted to pick
> char*, for two dumb reasons: it might make porting to really old
> compilers easier (as if I care), and I often do byte-wise pointer math
> on the iov_base elements (but I'll still have to explicitly cast in
> those cases for Linux etc.). If I use char*, I could hide it behind
> caddr_t, or not; but I'll probably drop all uses of caddr_t.
> 
> So I guess I have a plan for making this bit portable now.
> 
> --Jamey
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