KJP

@EmBitz if it helps, I can build successfully both on Ubuntu 20.04/22.04. Here's the command that I use: ``` cmake -Bbuild -H. -DPAHO_ENABLE_TESTING=OFF -DPAHO_BUILD_STATIC=ON -DPAHO_WITH_SSL=ON -DPAHO_HIGH_PERFORMANCE=ON -DCMAKE_INSTALL_PREFIX=../install ``` Combined output...