Hi, i need some help

it fails to "make"

[ 60%] Building C object examples/CMakeFiles/ex12bit.dir/ex12bit.c.o
Linking C executable ex12bit
../lib/liballeg.so.4.4.0: undefined reference to `_colorconv_rgb_scale_5x35'
../lib/liballeg.so.4.4.0: undefined reference to `dlsym'
../lib/liballeg.so.4.4.0: undefined reference to `_colorconv_rgb_map'
../lib/liballeg.so.4.4.0: undefined reference to `_colorconv_indexed_palette'
../lib/liballeg.so.4.4.0: undefined reference to `dlopen'
../lib/liballeg.so.4.4.0: undefined reference to `dlclose'
collect2: ld returned 1 exit status
make[2]: *** [examples/ex12bit] Error 1
make[1]: *** [examples/CMakeFiles/ex12bit.dir/all] Error 2
make: *** [all] Error 2

pff missing lib: X11 libs
it works now

hm.. for ubuntu9.10

sudo apt-get install build-essential libx11-dev

http://packages.ubuntu.com/karmic/devel/build-essential
http://packages.ubuntu.com/karmic/libx11-dev