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Bug#887452: marked as done (libkf5config-bin-dev is not useful for cross compilation)

Your message dated Mon, 05 Feb 2018 03:00:56 +0000
with message-id <E1eiX1c-0000jY-0X@fasolo.debian.org>
and subject line Bug#887452: fixed in kconfig 5.42.0-1
has caused the Debian Bug report #887452,
regarding libkf5config-bin-dev is not useful for cross compilation
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
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-- 
887452: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=887452
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: libkf5config-bin-dev
Version: 5.41.0-1
User: helmutg@debian.org
Usertags: rebootstrap
Control: affects -1 + src:okular

libkf5config-bin-dev is not useful for cross compilation. Unfortunately,
I don't know how to fix it, so this bug comes without a patch. I'm sorry
about that. Still let me explain the things I understood thus far.

Observation 1
~~~~~~~~~~~~~
While building okular, I see:

| [  8%] Generating settings_core.h, settings_core.cpp
| /usr/lib/mips-linux-gnu/libexec/kf5/kconfig_compiler_kf5 /<<PKGBUILDDIR>>/conf/okular_core.kcfg /<<PKGBUILDDIR>>/conf/settings_core.kcfgc -d /<<PKGBUILDDIR>>/obj-mips-linux-gnu/
| /usr/lib/mips-linux-gnu/libexec/kf5/kconfig_compiler_kf5: 1: /usr/lib/mips-linux-gnu/libexec/kf5/kconfig_compiler_kf5: Syntax error: "(" unexpected
| CMakeFiles/okularcore_autogen.dir/build.make:76: recipe for target 'settings_core.h' failed

This means that kconfig_compiler_kf5 was needed for execution (aka build
architecture), but was actually installed for the host architecture.
Likely some package needs Multi-Arch: foreign.

Observation 2
~~~~~~~~~~~~~
The libkf5config-dev -> libkf5config-bin-dev split is odd. Splitting
executables from a -dev package is common, but then the package
containing the executables is usually marked Multi-Arch: foreign. Not so
here! libkf5config-bin-dev is marked Multi-Arch: same. This is very
unusual as it removes the benefit of the libkf5config-dev <->
libkf5config-bin-dev split. At present, those packages could simply be
merged without regressing anything.

The Multi-Arch: same marking does have a little merit though: The
package ships most of its file on architecture-dependent paths and when
that happens, we usually use Multi-Arch: same. Just in this case it
turns out to not be useful.

Also usually the package containing the executables is called -dev-bin
rather than -bin-dev.

Observation 3
~~~~~~~~~~~~~
Simply marking libkf5config-bin-dev Multi-Arch: foreign likely is wrong
in a number of ways:
 * It contains .cmake files on an architecture-dependent path. That's
   not reasonable for Multi-Arch: foreign. Likely those can be moved to
   libkf5config-dev. (Don't forget Breaks + Replaces!)
 * The kconfig_compiler_kf5 lives on an architecture-dependent path.
   That's inappropriate for Multi-Arch: foreign as well. If we add such
   a marking, the path needs to be moved. Fortunately, it seems to be
   referenced exclusively via a path mentioned in
   KF5ConfigCompilerTargets-debian.cmake, so updating that file with
   a new path might be sufficient.
 * Then the question arises whether kconfig_compiler_kf5 is eligible for
   being marked Multi-Arch: foreign at all. That's not a given. The
   question to be asked here is whether its interface is
   architecture-dependent.

   Its main method to communicate with a user is the command line as
   well as two input files (.kcfg and .kcgfc) and some output files. The
   .kcfg file seems to be XML, the .kcfgc file seems to be some textual
   variable assignment syntax and the output seems to be a C++ header
   and source file. All of these are text files and that usually means
   that Multi-Arch: foreign is correct.

Plan
~~~~
I think making libkf5config-bin-dev Multi-Arch: foreign is the right
approach. For consistency with other packages, it should be renamed to
libkf5config-dev-bin (optional). For the marking to be correct,
kconfig_compiler_kf5 needs to live on an architecture-independent path
(needs to be moved) and the .cmake files need to be moved to
libkf5config-dev.

Can someone make that work? Or maybe support me in figuring how to
implement that?

Helmut

--- End Message ---
--- Begin Message --- 
Source: kconfig
Source-Version: 5.42.0-1

We believe that the bug you reported is fixed in the latest version of
kconfig, 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 887452@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Maximiliano Curia <maxy@debian.org> (supplier of updated kconfig 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, 02 Feb 2018 12:04:46 +0100
Source: kconfig
Binary: libkf5config-bin libkf5config-data libkf5config-dev libkf5config-dev-bin libkf5config-doc libkf5configcore5 libkf5configgui5
Architecture: source amd64 all
Version: 5.42.0-1
Distribution: experimental
Urgency: medium
Maintainer: Debian/Kubuntu Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>
Changed-By: Maximiliano Curia <maxy@debian.org>
Description:
 libkf5config-bin - configuration settings framework for Qt
 libkf5config-data - configuration settings framework for Qt
 libkf5config-dev - configuration settings framework for Qt
 libkf5config-dev-bin - configuration settings framework for Qt -- binary package
 libkf5config-doc - configuration settings framework for Qt (documentation)
 libkf5configcore5 - configuration settings framework for Qt
 libkf5configgui5 - configuration settings framework for Qt
Closes: 887452
Changes:
 kconfig (5.42.0-1) experimental; urgency=medium
 .
   * New upstream release (5.42.0).
   * Add link options as-needed
   * Bump debhelper build-dep and compat to 11.
   * Build without build_stamp
   * Allow packagers set kconfig_compiler install dir
   * Fix cross compilation issues
     + Move kconfig_compiler to an arch independant path
     + Move cmake files back to the -dev package
     + Rename -bin-dev package to -dev-bin
     Thanks to Helmut Grohne for the analysis and suggestions (Closes: 887452)
   * Update build-deps and deps with the info from cmake
   * Bump group breaks (5.42)
   * Bump Standards-Version to 4.1.3.
   * Release to experimental
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 c060e4ccf0f1bfbfdcd86214aff48d2813fb7bb1c6948e6d22a58a57e41c27f3 566820 libkf5config-bin-dbgsym_5.42.0-1_amd64.deb
 f4b3748f419565d0dda163b40f37a7bcb6d6e3b8252aed504b176bc82fb3d735 33968 libkf5config-bin_5.42.0-1_amd64.deb
 fc19c28e47a1a29a72f637a62be46ab10a6823fef5cc7c99030afcee5b7da886 68436 libkf5config-data_5.42.0-1_all.deb
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--- End Message ---
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