5.0.1 из источника 14.04:
cvs -d:pserver:anonymous@gnuplot.cvs.sourceforge.net:/cvsroot/gnuplot login
cvs -z3 -d:pserver:anonymous@gnuplot.cvs.sourceforge.net:/cvsroot/gnuplot co -P gnuplot
cd gnuplot
cvs update -r Release_5_0_1
sudo apt-get build-dep gnuplot
sudo apt-get install lua5.2
./prepare
./configure
time make
sudo make install
gnuplot --version
15.04 имеет пакет gnuplot5-x11.