Sorry, "a number of ways" is vague.  Here are the points to consider:

- If LAPACK isn't installed, this will try to link using those flags anyway, causing an error on most systems.
- If LAPACK is installed but is activated with a different set of library flags, this will cause LAPACK to be linked, but probably in some incompatible way.  

Sorry I missed the PR when this code came in, but I'm happy to see it go :)