How to install wiringPi ======================= The easiest way is to use the supplied 'build' script: ./build that should do a complete install or upgrade of wiringPi for you. That will install a dynamic library. Some distributions do not have /usr/local/lib in the default LD_LIBRARY_PATH. To fix this, you need to edit /etc/ld.so.conf and add in a single line: /usr/local/lib then run the ldconfig command. sudo ldconfig To un-install wiringPi: ./build uninstall Gordon Henderson projects@drogon.net https://projects.drogon.net/