[PATCH] Fix mingw linker build

[Richard Sandiford]

"Steve Ellcey " <sellcey@mips.com> writes:
> 2014-04-15  Steve Ellcey  <sellcey@mips.com>
>
> 	* ldbuildid.c (generate_build_id): Add ATTRIBUTE_UNUSED to size arg.

OK, thanks.

Richard