[Rock-dev] LD_LIBRARY_PATH and Qt::UiLoader Segfault

[Alexander Duda]

On Wed, 2011-08-31 at 11:59 +0200, Sylvain Joyeux wrote:
> On 08/31/2011 11:18 AM, Alexander Duda wrote:
> > Someone extended the environment variable LD_LIBRARY_PATH (env.sh) with
> > "/lib". The Qt::UiLoader cannot handle this and crashes.
> >
> > Question:
> > -Why was /lib added?
> It is a byproduct of the workaround in autobuild for debian rolling out 
> multiarch.
> 
> In a nutshell, on Debian, pkg-config and libraries can now get installed 
> in /lib/<ARCH> and /usr/lib/<ARCH>
> 
> To avoid issues with that, I started adding these to the 
> PKG_CONFIG_PATH. I also added them to LD_LIBRARY_PATH as at the time I 
> saw no drawbacks.
> > -Has someone else the same problem?
> How can I reproduce ? I tried loading the UILoader and starting the Qt 
> designer, and had no problems

in my case it occurs by typing the following into the shell.
. env.sh
irb
require 'Qt4'
require 'qtuiloader'
Qt::UiLoader.new
 
By removing /lib from LD_LIBRARY_PATH all works fine. I have no idea
what in lib is causing the problem.

Alex

-- 
Dipl.-Ing. Alexander Duda 
Unterwasserrobotik

DFKI Bremen
Robotics Innovation Center
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