Run make check in Jenkins.

[janden]

Clone of #125. See if creating the PR from the origin repository allows Jenkins to trust the updated Jenkinsfile.

[ahbarnett]

let's see how this goes. I'm not the Jenkins expert. Let's keep in mind that make check takes a few minutes to run, and does not have official pass/fail detection; it's a matter of if the tests compile and run (no math check is actually done).

[janden]

it's a matter of if the tests compile and run (no math check is actually done).

May be something to add. I'll make an issue.