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Bug#1016728: marked as done (autoconf: _AC_PROG_CXX_STDCXX_EDITION_TRY test is broken due to typo)

Your message dated Sat, 14 Jan 2023 18:19:22 +0000
with message-id <E1pGl7i-005lfk-6m@fasolo.debian.org>
and subject line Bug#1016728: fixed in autoconf 2.71-3
has caused the Debian Bug report #1016728,
regarding autoconf: _AC_PROG_CXX_STDCXX_EDITION_TRY test is broken due to typo
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1016728: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1016728
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: autoconf
Version: 2.71-2
Severity: important
Tags: patch

Hi,

One of the changes to AC_PROG_CXX since 2.69 is that it now tries to
enable C++11 by default.  In most cases now that is a no-op since the
gcc default is already C++14, but I have some code that explicitly
forces -std=gnu++98 and which make it obvious this test is simply
failing "unnoticed" in the case where the compiler default isn't already
greater than C++11 ...

The problem is a simple typo in _AC_PROG_CXX_STDCXX_EDITION_TRY which
is fixed by the patch below.  Its correctness can be cross checked
against the behaviour and code of _AC_PROG_CC_STDC_EDITION_TRY where the
analogous variable is ac_cv_prog_cc_c$1 and which does work correctly
out of the box when the default (or explicitly set by CFLAGS) compiler
standard is something earlier than C11 ...

  Cheers,
  Ron



--- c.m4.orig	2022-08-06 18:54:47.444388264 +0930
+++ c.m4	2022-08-06 18:56:24.341810320 +0930
@@ -2749,8 +2749,8 @@
 [AC_REQUIRE([_AC_CXX_CXX$1_TEST_PROGRAM])]dnl
 [AS_IF([test x$ac_prog_cxx_stdcxx = xno],
 [AC_MSG_CHECKING([for $CXX option to enable C++$1 features])
-AC_CACHE_VAL(ac_cv_prog_cxx_$1,
-[ac_cv_prog_cxx_$1=no
+AC_CACHE_VAL([ac_cv_prog_cxx_cxx$1],
+[ac_cv_prog_cxx_cxx$1=no
 ac_save_CXX=$CXX
 AC_LANG_CONFTEST([AC_LANG_DEFINES_PROVIDED][$][ac_cxx_conftest_cxx$1_program])
 for ac_arg in '' m4_normalize(m4_defn([_AC_CXX_CXX$1_OPTIONS]))

--- End Message ---
--- Begin Message --- 
Source: autoconf
Source-Version: 2.71-3
Done: Matthias Klose <doko@debian.org>

We believe that the bug you reported is fixed in the latest version of
autoconf, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1016728@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Matthias Klose <doko@debian.org> (supplier of updated autoconf package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Format: 1.8
Date: Sat, 14 Jan 2023 18:42:30 +0100
Source: autoconf
Architecture: source
Version: 2.71-3
Distribution: unstable
Urgency: medium
Maintainer: Debian QA Group <packages@qa.debian.org>
Changed-By: Matthias Klose <doko@debian.org>
Closes: 1016728
Changes:
 autoconf (2.71-3) unstable; urgency=medium
 .
   * QA upload.
   * Fix the _AC_PROG_CXX_STDCXX_EDITION_TRY test. Closes: #1016728.
   * Bump standards version.
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