[Help-gsl] how do you use gsl with fortran?

[Nino Pereira]

Hi,

most of my programming has been in fortran, never C. On linux (debian) I use
f77, which, as I understand, converts into C and then compiles C with gcc.

So, I think I should be able to use gsl  with fortran too, but I don't 
know how.
I tried to modify the C example into fortran, like so:

     program temp
c
c check linux function library
     x= 5.0
     y = gsl_sf_bessel_J0 (x)
     write (6,*) x,y
     stop
     end

but (as I feared) this does not compile (error message:
/tmp/ccSKHysk.o: In function `MAIN__':
/tmp/ccSKHysk.o(.text+0x17): undefined reference to `gsl_sf_bessel_j0_')

There should be a way to let fortran know about gsl, but what's the 
magic incantation?

Thanks,

Nino