merging i386-efi and x86_64-efi (Re: Current SVN is broken on x86_64)

[Robert Millan]

On Mon, Aug 04, 2008 at 08:51:25AM -0400, Pavel Roskin wrote:
> On Mon, 2008-08-04 at 11:16 +0200, Robert Millan wrote:
> 
> > Furthermore, I had a look and some of the x86_64 versions are just stubs 
> > that
> > include the i386 one.
> > 
> > Why don't we handle this like Linux?  They ship a single directory and use
> > #ifdefs where appropiate.  That enforces consistency in the dir layout.
> 
> I think we can do it.  i386 and x86_64 could be joined into one "x86"
> architecture with common headers and sources.  Perhaps the users should
> still use i386 and x86_64 in configure, but the code should be mostly
> common.

I gave a try at this, which I haven't completed yet.  Here's what I have
so far.

The biggest stumbling block seems to be that autoconf doesn't make it easy
to do AC_CHECK_SIZEOF checks for standard compiling and cross-compiling in
the same run (it does support cross-compiling though).

I haven't found a way to do it.  If I modify types.m4 to export its
findings to a variable instead of dumping them to config.h directly,
further calls to the same check won't return different results, even if
CC / CFLAGS has been adjusted.

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."

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