> Use const pointers everywhere.
That was the original plan, but you can't assign char** to char const**
under C typing. I decided it's better to just keep them char** to avoid
having to either type cast the pointers in function arguments, or having
to rewrite surrounding typing.
Oh, char ** for result params of *_inc is OK. But there are others IIRC.
The one in dwarf_getpubnames is there because other return statements
that, too, in the same function. The function returns ptrdiff_t -- that
does have a size of long, doesn't it?
Ah, yes, it does. Ok.
(It really doesn't hurt to use -1 there either, though.)