7.3 Build Error: Poco Not Found

A. Error Case

During build, the link step fails with undefined references to Poco:: symbols.

The Poco C++ Libraries are missing from your system, or -lPocoNet -lPocoFoundation is missing from the link line.

Install the dependency manually:

sudo apt install libpoco-dev

Then re-run CMake:

cd build && cmake .. && make

If Poco is installed, add -lPocoNet -lPocoFoundation after libDRFL.a on the link line (see Linking Library).