External fortran compiler vs. f2c

[Aleksey Cheusov <vle%gmx.net@localhost>]

What is the correct way to setup an external fortran compiler in pkgsrc?
I cannot find an answer in pkgsrc.txt

Is the following correct?

/etc/mk.conf:
  ...
  IGNORE_F2C=1
  FC=/path/to/fortran-compiler

And how about fortran-95? Some packages (e.g. latest upstream
math/lapack) doesn't work with fortran-77 anymore.

-- 
Best regards, Aleksey Cheusov.