Nicolas. Winbuilder 3.4-2 already includes a fix for this. In installations where the path is likely to be too long for the build the following warning is issued at the start of the build process: -- KiCad-Winbuilder V3.4 CMake Warning at KiCadWinbuilder.cmake:182 (message): Your install path maybe too long to be able to successfully build KiCad. Try re-installing to a root directory if the build fails! Best Regards, Brian. On 16 July 2014 15:07, Nicolas Matringe