Fix set-but-not-used warnings in ldbl-128 nearbyintl, rintl

[Andreas Jaeger]

On Tuesday, November 20, 2012 03:12:56 Joseph S. Myers wrote:
> The ldbl-128 versions of nearybintl and rintl define variables i1 for
> output use by the GET_LDOUBLE_WORDS64 macro.  Nothing then uses the
> values that macro puts in those variables, resulting in
> set-but-not-used warnings.
> 
> This patch marks those variables with __attribute__ ((unused)), as
> used for various similar cases.  Tested on MIPS that this does
> eliminate those warnings.

Ok, thanks,
Andreas
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