Qt5.15.16 Compiled on Lubuntu 20.04 64-bit GLIBC 2.31 GCC 9.4.0 ../qt-everywhere-src-5.15.16/configure -release -prefix "/opt/Qt/5.15.16/gcc_64" -opensource -confirm-license -silent -qt-zlib -qt-pcre -qt-libpng -qt-libjpeg -system-freetype -opengl desktop -make libs -make tools -flite -openssl-runtime OPENSSL_PREFIX="/opt/Qt/Tools/OpenSSLv3/src" make make install