how to run Fortran 77 on MAC term

I am trying to run an old FORTRAN 77 code on MAC term
A simple test compiles using
g77 -c test.f
producing test.o however cannot produce an executable as
g77 -o test test.o

gives an error

"ld: library not found for -.o
collect2: ld returned 1 exit status"

My test.f :

x=10
write(7,1000)x
1000 format (1x, i3)
end

I am not committed to g77, but gfortran gives error
"segmentation fault:11"
even at the compilation stage
Please help. Thank you
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