error while cross compile

Hello all

I wouid like to use konqueror/embedded with qt/embedded(free-3.3.4) on arm.
qt/embedded was configured with option:
    -depths 1,4,8 -no-ipv6 -no-cups -no-pch -qt-gif -no-thread -embedded 
arm -qt-zlib -qt-libpng -DQT_QLOCALE_USES_FCVT

And now I tried to configure the konqueror3-embedded-0.2-20051128 with
 option:
    --enable-qt-embedded -enable-embedded --host=arm-linux --disable-mt

then, the message say that:
    checking for libz... configure: error: not found.
              Possibly configure picks up an outdated version
              installed by XFree86. Remove it from your system.
              Check your installation and look into config.log

Now, the version of libz is 1.2.3
Could anyone please tell me how should I do and what version is available to
use for konq3/e?

thanks

inoue