[PATCH 2/N, MPX, x86_64] Intel MPX support in glibc for x86_64

[Joseph S. Myers]

On Fri, 25 Apr 2014, Carlos O'Donell wrote:

> You should test for __int128, set HAVE_INT128, and make this
> support conditional on the compiler feature being present
> (avoid hard-coding the compiler version). I believe Ondrej
> posted a patch for this?

bits/link.h is an installed header so can't contain conditionals on 
configure test results like that.

However, the __int128_t built-in typedef is much older than the __int128 
keyword (dating back to GCC 3.0, i.e. predating x86_64 support which was 
added in 3.1), so that can be used instead.

-- 
Joseph S. Myers
joseph@codesourcery.com