Re: A libstdc++ v3 patch for pragma system_header

[Loren James Rittle <rittle at latour dot rsch dot comm dot mot dot com>]

> Since "#pragma system_header" has been changed to "#pragma GCC system_header",
> this patch is needed for libstdc++ v3.

FYI, H . J . Lu posted this patch to gcc-patches.  Since I did some of
the original work to use #pragma system_header where it was required,
I have reviewed his work.  It looks OK but I can't bootstrap it myself
due to other preexisting failures.

[Aside: Am I suppose to be able to build on non-glibc hosts yet?  If
 so, I guess have some patch submission work to do... ;-]

In deciding whether the patch is OK, I have assumed that we do not
need to support any gcc other than: past official releases and the
current CVS mainline.  #pragma system_header has never existed in an
official release.

Regards,
Loren