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Re: [patch] For BZ #17328, mark __errno_location with __attribute__((returns_nonnull)) for gcc >=4.9.0

On 28 Feb 2015 14:03, Paul Pluzhnikov wrote:
> +#  if __GNUC_PREREQ(4,9)
> +     __attribute__((returns_nonnull))
> +#  endif

repeating this everywhere is ugly.  update misc/sys/cdefs.h instead to create a 
dedicated attribute define based on version, and then apply that define to all 
the headers w/out any version checks.
-mike

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