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Re: [PATCH] AC_USE_SYSTEM_EXTENSIONS: port to recent ISO C
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From: |
Joseph Myers |
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Subject: |
Re: [PATCH] AC_USE_SYSTEM_EXTENSIONS: port to recent ISO C |
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Date: |
Wed, 14 Sep 2016 12:55:59 +0000 |
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User-agent: |
Alpine 2.20 (DEB 67 2015-01-07) |
On Tue, 13 Sep 2016, Paul Eggert wrote:
> * lib/autoconf/specific.m4 (AC_USE_SYSTEM_EXTENSIONS):
> Also define __STDC_WANT_IEC_60559_BFP_EXT__,
> __STDC_WANT_IEC_60559_FUNCS_EXT__, and __STDC_WANT_LIB_EXT2__.
Why not __STDC_WANT_IEC_60559_TYPES_EXT__ (which makes GCC 7's <float.h>
declare limits for _FloatN and _FloatNx types; not yet anything in glibc,
until the float128 work is in)? (There are other feature test macros for
ISO C extensions as well.)
--
Joseph S. Myers
address@hidden