Bug#615742: binutils gold fix for libdrumstick

Modestas Vainius modax at debian.org
Tue Mar 1 09:57:13 UTC 2011


On antradienis 01 Kovas 2011 08:06:18 Pedro Lopez-Cabanillas wrote:
> You are wrong assuming that the variable QT_X11_X11_LIBRARY is deprecated
> in CMake 2.8.1, or it is not available anymore. The CMake macros were
> reorganized, and now this variable is set in
> Qt4ConfigDependentSettings.cmake [2] (lines 259-271) which is included
> from FindQt4.cmake [3], line 1035, and it is also documented [4].
> The attached CMakeLists.txt test file should work as expected. Here is the
> output in my development machine: $ cmake .
> -- The C compiler identification is GNU
> -- The CXX compiler identification is GNU
> -- Check for working C compiler: /usr/bin/gcc
> -- Check for working C compiler: /usr/bin/gcc -- works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Check for working CXX compiler: /usr/bin/c++
> -- Check for working CXX compiler: /usr/bin/c++ -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Looking for Q_WS_X11
> -- Looking for Q_WS_X11 - found
> -- Looking for Q_WS_WIN
> -- Looking for Q_WS_WIN - not found.
> -- Looking for Q_WS_QWS
> -- Looking for Q_WS_QWS - not found.
> -- Looking for Q_WS_MAC
> -- Looking for Q_WS_MAC - not found.
> -- Found Qt-Version 4.6.3 (using /usr/bin/qmake)
> -- Looking for _POSIX_TIMERS
> -- Looking for _POSIX_TIMERS - found
> -- QT_X11_X11_LIBRARY contains: /usr/lib/libX11.so
> -- Configuring done
> -- Generating done

I don't see anything in the code you referred to which would define 
QT_X11_X11_LIBRARY variable. If anything it shows that X11_X11_LIB is being 

> > You're right that current debian patch (courtesy by ubuntu) is a pure
> > hack and you nailed its deficiencies well. But you have the bug on your
> > hands nevertheless, it's not debian-specific bug. In order to fix this
> > properly, do find_package(X11) and use a proper variable which expands
> > to X11 library (iirc, X11_X11_lib).
> I don't agree with that. You are proposing to patch this package, but every
> build system depending on CMake and the variable QT_X11_X11_LIBRARY would
> need a similar patch. Won't be better a common solution that works for all
> of them? In my opinion it would be preferred to patch Debian's CMake
> package.

Oh please. Debian DOES NOT patch cmake in this Qt4 code or anything remotely 
related. Period. We actively push cmake patches upstream and our 2.8.4 is an  
almost pure vanilla version with a couple of minor changes now. 
QT_X11_X11_LIBRARY was removed in favour of X11_X11_LIB and that's how it is 
(I don't feel like chasing when). Just get over it.

I feel like you are not listening, but it's your right. So until you wake up, 
Debian maintainer will have to patch libdrumstick. However, I just suggest him 
doing s/QT_X11_X11_LIBRARY/X11_X11_LIB/ instead of current patch-hack that is 
of really poor quality and has some bad side effects.

Sorry for a bit rude tone, but I really feel that I spent more time on this I 
have on my hands. Such a long debate for a single variable? Uch...

Modestas Vainius <modax at debian.org>
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