Bug#679874: qt4-dev-tools: assistant multiple segfaults

[Ralf Jung <post@ralfj.de>]

severity 679874 serious
thanks

Actually assistant is entirely unusable due to this: After removing 
~/.local/share/data/Trolltech, it launches fine a single time, but when I quit 
and start it again, I get the segfault again. In other words, it is not 
possible to launch assistant two consecutive times without manually removing 
its configuration.

In my case however the backtrace is for some reason entirely useless, even 
though libqt4-dbg is installed:

Program received signal SIGSEGV, Segmentation fault.
__memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:267
267     ../sysdeps/x86_64/multiarch/../memcpy.S: No such file or directory.
(gdb) bt
#0  __memcpy_sse2 () at ../sysdeps/x86_64/multiarch/../memcpy.S:267
#1  0x000000000044a9ad in ?? ()
#2  0x00000000004487d2 in ?? ()
#3  0x0000000000449648 in ?? ()
#4  0x0000000000422c62 in ?? ()
#5  0x00007ffff5bc4ead in __libc_start_main (main=<optimized out>, 
argc=<optimized out>, ubp_av=<optimized out>, init=<optimized out>, 
fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7fffffffe1b8) at libc-start.c:228
#6  0x0000000000423971 in ?? ()
#7  0x00007fffffffe1b8 in ?? ()
#8  0x000000000000001c in ?? ()
#9  0x0000000000000001 in ?? ()
#10 0x00007fffffffe4a2 in ?? ()
#11 0x0000000000000000 in ?? ()

Kind regards,
Ralf