Fix math_private.h multiple include guards [committed]

[Andreas Schwab]

Joseph Myers <joseph@codesourcery.com> writes:

> On Sat, 21 Nov 2015, Andreas Schwab wrote:
>
>> Joseph Myers <joseph@codesourcery.com> writes:
>> 
>> > 	* sysdeps/arm/math_private.h [!_MATH_PRIVATE_H]: Change guard to
>> > 	[!ARM_MATH_PRIVATE_H].
>> > 	[!ARM_MATH_PRIVATE_H] (ARM_MATH_PRIVATE_H): Define macro.
>> 
>> That should be _ARM_MATH_PRIVATE_H, etc.
>
> This is an internal header, not an installed header, so I see no need for 
> the leading underscore (and there is no consistency in that regard in 
> headers unchanged by my patch, e.g. AARCH64_MATH_PRIVATE_H but 
> _PPC_MATH_PRIVATE_H_).

We should standardize on underscored guards for all headers.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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