PATCH: Update longlong.h from GCC 4.7.0

[Joseph S. Myers]

On Fri, 16 Mar 2012, H.J. Lu wrote:

> Hi,
> 
> This patch updates longlong.h from GCC 4.7.0 so that we always use
> __builtin_clzll and __builtin_ctzll for x86-64 DImode to support x32.
> OK to install?

Rather than selectively merging one change, I think you should:

* Merge the change to use a URL instead of an FSF postal address in the 
header from glibc to GCC.

* Merge indentation fixes from glibc to GCC (it looks like there are some 
places where glibc is indenting with tabs but GCC is using spaces).

* Once the only differences are substantive changes that were made in GCC 
but not in glibc, copy the GCC version to glibc to get them back in sync.

-- 
Joseph S. Myers
joseph@codesourcery.com