arpack fails to build with:

```
Error: Rank mismatch between actual argument at (1) and actual
argument at (2) (scalar and rank-1)
```

According to [1] and [2], this is common for older fortran code. To get
arround it, you can pass `-fallow-argument-mismatch` to the fortran
compiler.

[1]:https://github.com/ElmerCSC/elmerfem/issues/231
[2]:https://stackoverflow.com/questions/34613356/error-rank-mismatch-in-argument-rank-1-and-scala