help with compiling qt examples?

[Rob Tandy <rtandy-debian@slowchip.com>]

Hello all, 

I recently apt-got libqt2, libqt2-dev, qt2-doc, my interest was sparked with 
the soon to be released GPLed free version announcement.  Any way, I'm having
trouble compiling the examples that come with qt2-doc.  Here is the error
I get

	g++ -L/usr/lib/qt2/lib -L/usr/X11R6/lib  -o aclock aclock.o main.o 
	moc_aclock.o -lqt -lXext -lX11 -lm  -L/usr/lib -lz -lpng 
	/usr/bin/ld: cannot find -lz
	collect2: ld returned 1 exit status
	make: *** [aclock] Error 1

hmm  -lz, zlib, right?  I have it installed.
	
	dpkg -s zlib1g
	Package: zlib1g
	Status: install ok installed
	...

Am I missing something?  BTW, I'm running potato.

Also, I noticed that there isn't a .deb of PyQt, the python bindings to Qt.
Is there a reason why, or no one has done it yet?

Thanks (much), in advance,

-rob