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Date: Wed, 04 Dec 2019 20:43:00 -0000
From: Joseph Myers <joseph@codesourcery.com>
To: Stefan Liebler <stli@linux.ibm.com>
CC: <libc-alpha@sourceware.org>
Subject: Re: [PATCH 13/13] Use GCC builtins for copysign functions if
 desired.
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On Wed, 4 Dec 2019, Stefan Liebler wrote:

> Okay. Then I've removed the macros for float and double and call the builtins
> unconditionally.
> But I still need the long double version as the f128 builtin is not available
> with every GCC version.

I think the _Float128 version could be defined to 1 for GCC 7 and later 
(so both long double and _Float128 versions could be removed once we 
require GCC 7 or later to build glibc).

-- 
Joseph S. Myers
joseph@codesourcery.com