Cherry-pick "Merge branch 'ROOTUbuntuFixes-1.0-20181023' into '1.0'" into master
ROOT Build Fixes, 1.0 branch (2018.10.23.)
See merge request !370 (merged)
(cherry picked from commit be4d2836)
- fc1951ea Patched how ROOT 6.14/04 builds Davix and VDT internally.