build in priority with /usr/local/include/eigen3 library if it is in…
Created by: ceriou
…stalled
reason: on my machine ( Ubuntu 16.04) 2 eigen versions was installed :
- package (3.2.92) known with bugs on Ubuntu 16.04
- and local (3.2.9) with no bug
Certivibe was compiling with the package version and some tests failed with a seg fault.