Dear Maintainer,

cmake fails to execute its buildtime tests (dh_auto_test) on many
architectures when compiled with an LTO enabled toolchain. E.g. on
Ubuntu/s390x (GCC-12 + LTO) we saw the following failure:

# CustomCommand test fails (LP: #2015872):
#   No INFO:symbol[pcStatic] found in: /<<PKGBUILDDIR>>/Build/Tests/CustomCommand/bin/libpcStatic.a
# Instead it produces the following strings (`strings bin/libpcStatic.a | grep INFO`):
#   INFO:symbol[]
#   INFO:symbol[pcStatic]

We also observed failures on amd64, arm64 and ppc64el in addition to s390x:
https://git.launchpad.net/ubuntu/+source/lto-disabled-list/commit/?h=ubuntu/devel&id=57f7f783

This does not directly affect Debian, but might, should Debian enable LTO by
default in the future. Please consider disabling LTO explicitly to avoid such
(future) failure, or feel free to reject this patch if you feel like it doesn't
apply.

  * d/rules: Disable LTO to fix FTBFS (LP: #2015872)


Thanks for considering the patch.

Hello,

Bug #1034873 in cmake reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/cmake-team/cmake/-/commit/e62fa5e5320cec75521be0c0bbbef29e134be5aa
------------------------------------------------------------------------
Do not build with link-time optimization

Closes: #1034873
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1034873

We believe that the bug you reported is fixed in the latest version of
cmake, 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 1034873@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Timo Röhling <roehling@debian.org> (supplier of updated cmake 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)
Format: 1.8
Date: Tue, 23 May 2023 17:38:50 +0200
Source: cmake
Architecture: source
Version: 3.26.4-1
Distribution: experimental
Urgency: medium
Maintainer: Debian CMake Team <pkg-cmake-team@lists.alioth.debian.org>
Changed-By: Timo Röhling <roehling@debian.org>
Closes: 1034873
Changes:
 cmake (3.26.4-1) experimental; urgency=medium
 .
   * Do not build with link-time optimization (Closes: #1034873)
   * Fix obsolete Build-Depend on libncurses5-dev
   * Bump Standards-Version to 4.6.2
   * New upstream version 3.26.4
   * Enable hardening flags
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