Ping(build machinery): Patch: PR libgcj/28426: Fix install directory for libgcj headers in cross build.

[DJ Delorie]

> > FWIW: I think this is a regression from 3.3.1, but I am not positive 
> > because my 3.3.1 build is quite hacked up.

At this point, we care about regressions from 4.1, since we're in
stage3.  This is OK for mainline once we're in stage1, and OK for
the 4.2 branch and/or mainline now if the branch manager OKs it.

> > libstdc++-v3:
> > 2006-07-18  David Daney  <ddaney@avtrex.com>
> > 
> >     PR libgcj/28426
> >     * acinclude.m4: Added a comment.
> > 
> > config:
> > 2006-07-18  David Daney  <ddaney@avtrex.com>
> > 
> >     PR libgcj/28426
> >     * gxx-include-dir.m4: Use target_alias in path for cross build.
> > 
> > libjava:
> > 2006-07-18  David Daney  <ddaney@avtrex.com>
> > 
> >     PR libgcj/28426
> >     * configure: Regenerated.