The best replacement for g77 is f77.

The best alternatives to g77 are rated as following:
★★★★★  f77
★★★  gfortran

Your alternative for g77 is not listed? Suggest!
Speaking about g77, one probably shouldn't forget about gfortran.

Other search terms related to g77 and their ratings are:
★★★★★ gfortran
You have in mind a companion for g77 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of g77 in all years. Click on graph for more.
g77
f77
gfortran