From: Joseph Myers <joseph@codesourcery.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Jonathan Wakely <jwakely@redhat.com>,
Patrick Palka <ppalka@redhat.com>, <libstdc++@gcc.gnu.org>,
<gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] libstdc++: Add _Float128 to_chars/from_chars support for x86, ia64 and ppc64le with glibc
Date: Mon, 7 Nov 2022 16:11:06 +0000 [thread overview]
Message-ID: <6cffcff-f879-c122-2aeb-fa53714511ac@codesourcery.com> (raw)
In-Reply-To: <Y2I3pr1Eyn120h1C@tucnak>
On Wed, 2 Nov 2022, Jakub Jelinek via Gcc-patches wrote:
> APIs. So that one can build gcc against older glibc and then compile
> user programs on newer glibc, the patch uses weak references unless
> gcc is compiled against glibc 2.26+. strfromf128 unfortunately can't
This support for older glibc doesn't actually seem to be working, on an
older system with glibc 2.19 I'm seeing
/scratch/jmyers/fsf/gcc-mainline/libstdc++-v3/src/c++17/floating_to_chars.cc:52:3: error: expected initializer before '__asm'
52 | __asm ("strfromf128");
| ^~~~~
and a series of subsequent errors.
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2022-11-07 16:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-02 9:25 Jakub Jelinek
2022-11-07 13:45 ` Jonathan Wakely
2022-11-07 16:11 ` Joseph Myers [this message]
2022-11-07 17:48 ` Jonathan Wakely
2022-11-07 17:52 ` Joseph Myers
2022-11-07 19:13 ` Jakub Jelinek
2022-11-07 22:43 ` Jonathan Wakely
2022-11-08 1:41 ` Joseph Myers
2022-11-08 8:43 ` Jakub Jelinek
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