Since it has a *.pro (Capture2Text.pro) file, it needs QT (qmake) to build the file. You can download an open source version of QT via the following link: https://www.qt.io/download-open-source I believe you can use the build instructions in the following link: https://github.com/GSam/Capture2Text The following fork has a README.md file with build instructions. https://github.com/EnderQIU/c2t-source-code