[patch bfd]: Add further support for x86_64 mingw

[Brian Dessent]

Kai Tietz wrote:

> > Can't you just use the standard inttypes.h macros, e.g.
> >
> > #define sprintf_vma(s,x) sprintf (s, "%016" PRIx64, x)
> 

> I could add the inttypes.h header into bfd-in.h, but this would mean to
> inherit config, too. This I think isn't a good choice. So the other

I suppose that would pull in a new dependency where it previously didn't
exist before.  I was thinking you could provide a default value of llx
(et cetera) if it's not defined, but you'd still need to do a header
check and I guess that's too much trouble.

> solution to prevent to much target specific '#ifdef'-clauses would be to
> add to bfd-in.h an equivalent to the printf formatters in standard
> inttypes.h, like BFD_PRIx64, BFD_PRIx32, ...? Otherwise it seems to be
> better to live with target specific clauses. What is your opinion about
> this?

Is _WIN32 really the right thing to predicate this on?  For example
someone using Cygwin and also using the w32api directly (by #include
<windows.h>) will have _WIN32 defined, but they aren't using MSVCRT and
so I64x is wrong.  Admittedly this is probably not something that is
likely to occur in bfd, and I know this is a common idiom, but why not
conditionalize it on __MSVCRT__ instead?  MinGW gcc defines this as a
builtin right next to _WIN32 but it is not overloaded with the meaning
of "I'm using the Windows headers."

Brian