After compilingh, command used was:
At the end got this-
Summary: PASS 12941 FAIL 0 XFAIL 14 SKIPPED 1 See the file /tmp/octave-4.0.0/test/fntests.log for additional details. Expected failures (listed as XFAIL above) are known bugs. Please help improve Octave by contributing fixes for them. Tests are most often skipped because the features they require have been disabled. Features are most often disabled because they require dependencies that were not present when Octave was built. The configure script should have printed a summary at the end of its run indicating which dependencies were not found. 207 (of 874) .m files have no tests. Please help improve Octave by contributing tests for these files (see the list in the file /tmp/octave-4.0.0/test/fntests.log).
Open to contribute. Well! I continued to
sudo make install.