[vbox-dev] bad linkage of x86_64 vbox

[JD]

The X86_74 version of vbox I installed is linking with the wrong
qt lib. All x86_64 linux'es install both the 32  bit and 64 bit
versions of a library by default.

The x86_64 version of vbox is choosing to link with the 32 bit
version of the qt library in usr/lib/ instead of /usr/lib64/
To wit:

# /usr/bin/VirtualBox
Qt WARNING: Session management error: Authentication Rejected, reason : 
None of the authentication protocols specified are supported and 
host-based authentication failed
Qt WARNING: Conflict in 
/usr/lib/qt-3.3/plugins/inputmethods/libqimsw-multi.so:
  Plugin uses incompatible Qt library!
  expected build key "x86_64 Linux g++-4.* full-config", got "i686 Linux 
g++-4.* full-config".
Qt WARNING: Conflict in 
/usr/lib/qt-3.3/plugins/inputmethods/libqimsw-none.so:
  Plugin uses incompatible Qt library!
  expected build key "x86_64 Linux g++-4.* full-config", got "i686 Linux 
g++-4.* full-config".
Qt WARNING: Conflict in /usr/lib/qt-3.3/plugins/inputmethods/libqsimple.so:
  Plugin uses incompatible Qt library!
  expected build key "x86_64 Linux g++-4.* full-config", got "i686 Linux 
g++-4.* full-config".
Qt WARNING: Conflict in /usr/lib/qt-3.3/plugins/inputmethods/libqxim.so:
  Plugin uses incompatible Qt library!
  expected build key "x86_64 Linux g++-4.* full-config", got "i686 Linux 
g++-4.* full-config".

Furthermore, the rpm VirtualBox-1.5.6_28266_fedora7-1.x86_64.rpm
gets installed into /usr/lib, instead of /usr/lib64.

Fedora 7 for x86_64 (I dont know about others - but perhaps they do the 
same):
always installs both 32 bit and 64 bit versions of a library. The 32 bit 
version
goes into /usr/lib and the 64 bit in /usr/lib64.

Even though it is no a rule, but seems like it would be a good convention
to follow.

So, is there a new build which solves this problem?