[0/5] Input file and srcpos rework (v2)

[Jon Loeliger]

David Gibson wrote:
> Here's a rebased and revised version of my series of source file
> handling and srcpos tracking cleanups.  I've also included my patch to
> move existing utility functions into util.c; sorry for the repeat
> send, but it seemed clearer since I think one of the later patches
> will conflict without it.
> 

FYI, I'm not ignoring you or these.  I'm still catching up some...

jdl