libqt4 not found on stable debian6

[abdelkader belahcene <abelahcene@gmail.com>]

Hi,
I tried to install lyx 2 (last version) from source.
I got a problem :    libqt4  not found !!!

I have installed almost qt4 library  here is the list


dpkg  -S   libqt4 | awk '{print $1}'
 
libqt4-assistant
libqt4-core
libqt4-dbus
libqt4-designer
libqt4-dev
libqt4-gui
libqt4-help
libqt4-multimedia
libqt4-network
libqt4-opengl
libqt4-opengl-dev
libqt4-qt3support
libqt4-script
libqt4-scripttools
libqt4-sql
libqt4-sql-mysql
libqt4-sql-sqlite
libqt4-svg
libqt4-test
libqt4-webkit
libqt4-xml
libqt4-xmlpatterns



it seems that libqt4-core  doesn't contains  the require lib  which is in package   libqtcore4,  instead of this
one must uses  libqt4core4      which is different. Unfortunatly on debian6, there is not such file in stable,  it was,  but now just on sid !!!,   
So I must try   libqt-X11  instead ??
is it a debian or  a lyx developpement  lack ??

thanks for help