You will need both udpipe and UDPipe_Julia_Wrapper repositories placed in the same directory.
.
├── UDPipe_Julia_Wrapper
├── udpipe
You will also need to build libcxxwrap-julia (instructions are inside libcxxwrap-julia repository).
Set CxxWrap directory (for CMake).
export JlCxx_DIR=/path/to/compiled/cxxwrap-julia
Move to UDPipe Julia Wrapper directory and build:
mkdir build
cd build
cmake ..
make
This will compile both udpipe and UDPipe Julia Wrapper sources.