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Bug#1113220: marked as done (libvncserver: FTBFS with CMake 4)

Your message dated Fri, 10 Oct 2025 13:49:04 +0000
with message-id <E1v7DUW-004Fyc-2d@fasolo.debian.org>
and subject line Bug#1113220: fixed in libvncserver 0.9.15+dfsg-2
has caused the Debian Bug report #1113220,
regarding libvncserver: FTBFS with CMake 4
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.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1113220: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1113220
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: libvncserver
Version: 0.9.15+dfsg-1
Severity: serious
User: cmake@packages.debian.org
Usertags: cmake-4
Tags: ftbfs, forky, sid

Dear maintainer,

During a test rebuild for CMake 4, libvncserver failed to rebuild.

Log Summary:
-------------------------------------------------------------------------------
[...]
 e3d6050fb1a0161a851fcc5081a4deeb87ff452f 18056 libvncserver_0.9.15+dfsg-1.debian.tar.xz
Checksums-Sha256:
 522faacc783ca0924d34e2a355c3b1cc2d17115e04ffb78e7935db541af184d0 446056 libvncserver_0.9.15+dfsg.orig.tar.xz
 df05aa1f28da634ca4ffe8cb97c1858ebdd1122a882b04165e3e64b98896ee9c 18056 libvncserver_0.9.15+dfsg-1.debian.tar.xz
Files:
 b650ea182f01cbf464d9152b0939e738 446056 libvncserver_0.9.15+dfsg.orig.tar.xz
 8c29216994c0ce4194a74075d4b0aefb 18056 libvncserver_0.9.15+dfsg-1.debian.tar.xz

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dpkg-source: warning: cannot verify inline signature for ./libvncserver_0.9.15+dfsg-1.dsc: no acceptable signature found
dpkg-source: info: extracting libvncserver in /build/reproducible-path/libvncserver-0.9.15+dfsg
dpkg-source: info: unpacking libvncserver_0.9.15+dfsg.orig.tar.xz
dpkg-source: info: unpacking libvncserver_0.9.15+dfsg-1.debian.tar.xz

Check disk space
----------------

Sufficient free space for build

User Environment
----------------

APT_CONFIG=/var/lib/sbuild/apt.conf
HOME=/sbuild-nonexistent
LANG=C.UTF-8
LC_ALL=C.UTF-8
LOGNAME=sbuild
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
SHELL=/bin/sh
USER=sbuild

dpkg-buildpackage
-----------------

Command: dpkg-buildpackage --sanitize-env -us -uc -b
dpkg-buildpackage: info: source package libvncserver
dpkg-buildpackage: info: source version 0.9.15+dfsg-1
dpkg-buildpackage: info: source distribution unstable
dpkg-buildpackage: info: source changed by Mike Gabriel <sunweaver@debian.org>
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture arm64
 debian/rules clean
dh clean 
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/build/reproducible-path/libvncserver-0.9.15+dfsg'
dh_auto_clean
rm -f rfb/rfbconfig.h
make[1]: Leaving directory '/build/reproducible-path/libvncserver-0.9.15+dfsg'
   dh_clean
 debian/rules binary
dh binary 
   dh_update_autotools_config
   dh_autoreconf
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/build/reproducible-path/libvncserver-0.9.15+dfsg'
dh_auto_configure -- \
    -DWITH_PNG=OFF \
    -DCMAKE_BUILD_TYPE=RELWITHDEBINFO \
    
	cd obj-aarch64-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb PKG_CONFIG=/usr/bin/pkg-config cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=None -DCMAKE_INSTALL_SYSCONFDIR=/etc -DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON -DFETCHCONTENT_FULLY_DISCONNECTED=ON -DCMAKE_INSTALL_RUNSTATEDIR=/run -DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON "-GUnix Makefiles" -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_INSTALL_LIBDIR=lib/aarch64-linux-gnu -DWITH_PNG=OFF -DCMAKE_BUILD_TYPE=RELWITHDEBINFO ..
CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 3.5 has been removed from CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.

  Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.


-- Configuring incomplete, errors occurred!
	cd obj-aarch64-linux-gnu && tail -v -n \+0 CMakeCache.txt
==> CMakeCache.txt <==
# This is the CMakeCache file.
# For build in directory: /build/reproducible-path/libvncserver-0.9.15+dfsg/obj-aarch64-linux-gnu
# It was generated by CMake: /usr/bin/cmake
# You can edit this file to change values found and used by cmake.
# If you do not want to change any of the values, simply exit the editor.
# If you do want to change a value, simply edit, save, and exit the editor.
# The syntax for the file is as follows:
# KEY:TYPE=VALUE
# KEY is the name of a variable in the cache.
# TYPE is a hint to GUIs for the type of VALUE, DO NOT EDIT TYPE!.
# VALUE is the current value for the KEY.

########################
# EXTERNAL cache entries
########################

//No help, variable specified on the command line.
CMAKE_BUILD_TYPE:UNINITIALIZED=RELWITHDEBINFO

//No help, variable specified on the command line.
CMAKE_EXPORT_NO_PACKAGE_REGISTRY:UNINITIALIZED=ON

//No help, variable specified on the command line.
CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY:UNINITIALIZED=ON

//Value Computed by CMake.
CMAKE_FIND_PACKAGE_REDIRECTS_DIR:STATIC=/build/reproducible-path/libvncserver-0.9.15+dfsg/obj-aarch64-linux-gnu/CMakeFiles/pkgRedirects

//No help, variable specified on the command line.
CMAKE_FIND_USE_PACKAGE_REGISTRY:UNINITIALIZED=OFF

//No help, variable specified on the command line.
CMAKE_INSTALL_LIBDIR:UNINITIALIZED=lib/aarch64-linux-gnu

//No help, variable specified on the command line.
CMAKE_INSTALL_LOCALSTATEDIR:UNINITIALIZED=/var

//No help, variable specified on the command line.
CMAKE_INSTALL_PREFIX:UNINITIALIZED=/usr

//No help, variable specified on the command line.
CMAKE_INSTALL_RUNSTATEDIR:UNINITIALIZED=/run

//No help, variable specified on the command line.
CMAKE_INSTALL_SYSCONFDIR:UNINITIALIZED=/etc

//No help, variable specified on the command line.
CMAKE_SKIP_INSTALL_ALL_DEPENDENCY:UNINITIALIZED=ON

//No help, variable specified on the command line.
CMAKE_VERBOSE_MAKEFILE:UNINITIALIZED=ON

//No help, variable specified on the command line.
FETCHCONTENT_FULLY_DISCONNECTED:UNINITIALIZED=ON

//No help, variable specified on the command line.
WITH_PNG:UNINITIALIZED=OFF


########################
# INTERNAL cache entries
########################

//This is the directory where this CMakeCache.txt was created
CMAKE_CACHEFILE_DIR:INTERNAL=/build/reproducible-path/libvncserver-0.9.15+dfsg/obj-aarch64-linux-gnu
//Major version of cmake used to create the current loaded cache
CMAKE_CACHE_MAJOR_VERSION:INTERNAL=4
//Minor version of cmake used to create the current loaded cache
CMAKE_CACHE_MINOR_VERSION:INTERNAL=1
//Patch version of cmake used to create the current loaded cache
CMAKE_CACHE_PATCH_VERSION:INTERNAL=1
//Path to CMake executable.
CMAKE_COMMAND:INTERNAL=/usr/bin/cmake
//Path to cpack program executable.
CMAKE_CPACK_COMMAND:INTERNAL=/usr/bin/cpack
//Path to ctest program executable.
CMAKE_CTEST_COMMAND:INTERNAL=/usr/bin/ctest
//Name of external makefile project generator.
CMAKE_EXTRA_GENERATOR:INTERNAL=
//Name of generator.
CMAKE_GENERATOR:INTERNAL=Unix Makefiles
//Generator instance identifier.
CMAKE_GENERATOR_INSTANCE:INTERNAL=
//Name of generator platform.
CMAKE_GENERATOR_PLATFORM:INTERNAL=
//Name of generator toolset.
CMAKE_GENERATOR_TOOLSET:INTERNAL=
//Source directory with the top level CMakeLists.txt file for this
// project
CMAKE_HOME_DIRECTORY:INTERNAL=/build/reproducible-path/libvncserver-0.9.15+dfsg
//Name of CMakeLists files to read
CMAKE_LIST_FILE_NAME:INTERNAL=CMakeLists.txt
//number of local generators
CMAKE_NUMBER_OF_MAKEFILES:INTERNAL=1
//Path to CMake installation.
CMAKE_ROOT:INTERNAL=/usr/share/cmake-4.1

dh_auto_configure: error: cd obj-aarch64-linux-gnu && DEB_PYTHON_INSTALL_LAYOUT=deb PKG_CONFIG=/usr/bin/pkg-config cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=None -DCMAKE_INSTALL_SYSCONFDIR=/etc -DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_USE_PACKAGE_REGISTRY=OFF -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON -DFETCHCONTENT_FULLY_DISCONNECTED=ON -DCMAKE_INSTALL_RUNSTATEDIR=/run -DCMAKE_SKIP_INSTALL_ALL_DEPENDENCY=ON "-GUnix Makefiles" -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_INSTALL_LIBDIR=lib/aarch64-linux-gnu -DWITH_PNG=OFF -DCMAKE_BUILD_TYPE=RELWITHDEBINFO .. returned exit code 1
make[1]: *** [debian/rules:21: override_dh_auto_configure] Error 2
make[1]: Leaving directory '/build/reproducible-path/libvncserver-0.9.15+dfsg'
make: *** [debian/rules:14: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2
--------------------------------------------------------------------------------
Build finished at 2025-08-30T04:50:08Z

-------------------------------------------------------------------------------

The above is just how the build ends and not necessarily the most relevant part.
If required, the full build log is available here (for the next 30 days):
https://debusine.debian.net/artifact/2402729/

The most likely cause of build failures is the removed backwards compatibility for
CMake versions earlier than 3.5. You can find additional information in my
debian-devel announcement:

https://lists.debian.org/debian-devel/2025/04/msg00310.html

About the archive rebuild: The build was made on debusine.debian.net,
using sbuild.

You can find the build task here:
https://debusine.debian.net/work-request/153929/

If this is really a bug in one of the build-depends, please use
reassign and affects, so that this is still visible in the BTS web
page for this package.

Thanks,
Timo

--- End Message ---
--- Begin Message --- 
Source: libvncserver
Source-Version: 0.9.15+dfsg-2
Done: Mike Gabriel <sunweaver@debian.org>

We believe that the bug you reported is fixed in the latest version of
libvncserver, 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 1113220@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Mike Gabriel <sunweaver@debian.org> (supplier of updated libvncserver 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: SHA512

Format: 1.8
Date: Fri, 10 Oct 2025 15:20:50 +0200
Source: libvncserver
Architecture: source
Version: 0.9.15+dfsg-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Remote Maintainers <debian-remote@lists.debian.org>
Changed-By: Mike Gabriel <sunweaver@debian.org>
Closes: 1045247 1113220
Changes:
 libvncserver (0.9.15+dfsg-2) unstable; urgency=medium
 .
   * debian/patches:
     + Add 1001_CMake-4.patch. (Closes: #1113220).
   * debian/rules:
     + Cleanup build, so a rebuild from source is possible. (Closes: #1045247).
Checksums-Sha1:
 f7c2286cf5e27ba6a5d4cec1cd418741bcba8192 2323 libvncserver_0.9.15+dfsg-2.dsc
 fec7cfbb424052f96323d40e09a04a22ffb2c65f 18316 libvncserver_0.9.15+dfsg-2.debian.tar.xz
 0c0983ca9c9471bd7745c06141a512a680ee3c70 8311 libvncserver_0.9.15+dfsg-2_source.buildinfo
Checksums-Sha256:
 76f595c2badf86c4e9f8d9c9b3ed8c612b00fd2024879661fa3f8c0ff76516ab 2323 libvncserver_0.9.15+dfsg-2.dsc
 a6f4fe4620d61e85d08528c129ac11119698f75e3cb249c21e994ebfc508683a 18316 libvncserver_0.9.15+dfsg-2.debian.tar.xz
 0ff44883b108613c9fef34a8046fb14153496fba3dc63e78c556e868856cf505 8311 libvncserver_0.9.15+dfsg-2_source.buildinfo
Files:
 e5fe5b532e023e8d8f17c8943601bc05 2323 libs optional libvncserver_0.9.15+dfsg-2.dsc
 1d0d9408305a7b530916d06860ad6fca 18316 libs optional libvncserver_0.9.15+dfsg-2.debian.tar.xz
 be096fb5ac9999dc1509fb366ebd07b5 8311 libs optional libvncserver_0.9.15+dfsg-2_source.buildinfo

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--- End Message ---
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