From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: rcopley@gmail.com, 37852@debbugs.gnu.org
Subject: bug#37852: Build failure on MSYS2 (undefined reference to _chk functions)
Date: Tue, 22 Oct 2019 11:27:48 -0700 [thread overview]
Message-ID: <e687e358-834e-eced-5a34-03c177e621e2@cs.ucla.edu> (raw)
In-Reply-To: <83h8411p4u.fsf@gnu.org>
On 10/21/19 7:37 PM, Eli Zaretskii wrote:
>> I don't understand MSYS2 well enough to suggest fixes for Emacs, other
>> than "don't configure with --enable-gcc-warnings and don't compile with
>> _FORTIFY_SOURCE defined".
>
> Should we perhaps test for -lssp, and if it is found, add it to the
> link command when we define _FORTIFY_SOURCE?
If this is done only on MSYS2 platforms, and if -lssp is used only when
it causes otherwise-failing programs to work, then it should be OK. I
wouldn't do it elsewhere because on Fedora at any rate, -lssp used to be
trouble and was best avoided.
It vaguely sounds like MSYS2 is trailing Fedora and so is experiencing
problems Fedora had a few years ago (see, e.g.,
<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4973>).
next prev parent reply other threads:[~2019-10-22 18:27 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-21 12:28 bug#37852: Build failure on MSYS2 (undefined reference to _chk functions) Richard Copley
2019-10-21 13:07 ` Eli Zaretskii
2019-10-21 13:17 ` Richard Copley
2019-10-21 13:31 ` Eli Zaretskii
2019-10-21 14:04 ` Richard Copley
2019-10-21 16:01 ` Eli Zaretskii
2019-10-21 16:05 ` Andy Moreton
2019-10-21 16:36 ` Eli Zaretskii
2019-10-21 16:55 ` Eli Zaretskii
2019-10-22 0:40 ` Paul Eggert
2019-10-22 2:37 ` Eli Zaretskii
2019-10-22 18:27 ` Paul Eggert [this message]
2019-10-22 18:51 ` Eli Zaretskii
2019-10-23 21:29 ` Richard Copley
2019-10-24 13:50 ` Eli Zaretskii
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