download and unpack sources
run configure script
make install is not supported at this time. It will work if you try it, but GenTle will not have all its functionality. Makefiles must be adapted to support make install fully.
to run GenTle, go to ./gentle directory where binary file gentle is located. You can run it from its location.
to build plug-ins, read plug-in HOW-TO
to produce translation files for different language support, read translation HOW-TO