Float lib within mplab x in BoostC++ compiler programming Posted April 17, 2018 · Report reply Answering to my self. Its working now. Under mplabx the libraries should be added to the project through Project Properties and add it to BoostLink / Additional options. By the way, the compiler/linker finish the job in about 3 minutes > 72 module_files / 273 functions - 4 core, i7, 2.8GHZ, 16gb_ram The compiler takes 30 seconds. The rest of the time is spent by the linker (2.5 minutes)... It would be great if linker could be improved.