powerpc ld configure

[Peter Bergner]

On 8/25/16 9:10 AM, Alan Modra wrote:
> This fixes a few problems in the powerpc ld configury.
> 1) Using powerpc*le-* to test for powerpcle and powerpc64le would
>    incorrectly match a target triple like powerpc-apple-elf.
> 2) In the same vein, *64* could match 64 in the user supplied MANUF-OS
>    part of the target triple.
> 3) tooldir vars were missing, and some target aliases would result in
>    ridiculous values for those tdir_* vars given.
> 4) Since 2016-04-25, BE support was added automatically when asking
>    for an LE target.  If that is a good idea, then so is adding LE
>    support when asking for BE.
>
> 	* configure.tgt (powerpc*-*-linux* et al): Rewrite, adding LE
> 	support for BE.  First output all target endian configury
> 	values, then opposite endian.  Handle more tooldirs.  Fix
> 	bogus matches with strings in MANUF-OS part of target triple.

I see this just missed the 2.27 release.  Can we get it committed there?

Peter