Tell config about f2c

[Rudiger Belch]

I have one problem installing octave:

On our system, neither f77 nor f2c is available, and I had to install
f2c in my own directory. I put 

                        f2c.h into ~/Gnu/include
and 
                libF77.a and libI77.a into ~/Gnu/lib.

How can I tell config to look for libF77.a libI77.a at this place?

                        Rudi