bug#53509: Compilation failure of 27.2 on ppc64le

[Eli Zaretskii]

> Date: Mon, 24 Jan 2022 12:11:23 -0500 (EST)
> From: Scott Talbert <swt@techie.net>
> 
> On Fedora, we're seeing a compile error when compiling 27.2 on ppc64le 
> architecture.  Log excerpt below, full log at [1]:
> 
>    CC       regex.o
> In file included from /usr/include/stdio.h:899,
>                   from ./stdio.h:43,
>                   from ../../lib/regex_internal.h:24,
>                   from ../../lib/regex.c:68:
> /usr/include/bits/stdio-ldbl.h: In function '__LDBL_REDIR1_DECL':
> /usr/include/bits/stdio-ldbl.h:36:1: error: expected declaration 
> specifiers before '__LDBL_REDIR1_DECL'
>     36 | __LDBL_REDIR1_DECL (scanf, __isoc99_scanfieee128)
>        | ^~~~~~~~~~~~~~~~~~
> In file included from /usr/include/features.h:488,
>                   from /usr/include/errno.h:25,
>                   from ../../lib/libc-config.h:39,
>                   from ../../lib/regex.c:21:
> /usr/include/bits/stdio-ldbl.h:86:1: error: storage class specified for 
> parameter '__sprintf_chk'

Is it possible for you to try the latest pretest of Emacs 28?  It's
here:

  https://alpha.gnu.org/gnu/emacs/pretest/emacs-28.0.91.tar.xz

We don't plan on making any further releases of the v27.x series.

Thanks.