heres a quick how to build the cicb chat client for haiku os
first, we install the dependencies and grab the source code

git clone https://github.com/hoche/cicb.git

after that we edit the CMakeLists.txt

target_link_libraries(icb ${TCL_LIBRARY} ${READLINE_LIBRARY} bsd network)  add this to this line

then we create the build directory and run cmake

mkdir build

cd build

cmake ..

cmake --build .

after that just drop the bin file into your system path and you should be good to go

icb -s serveraddress -g yourgroup -n nickname