make -B all

GNU Fortran (gfortran) : The most universal, free, and open-source compiler, part of the GCC collection.

is a free Integrated Development Environment (IDE) designed for the Fortran programming language, specifically supporting Fortran 77 and Fortran 90 .

FORTRAN 20, standardized by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), marks a substantial leap forward. This version aims to integrate modern programming paradigms while preserving the efficiency and reliability that FORTRAN is known for. Key features of FORTRAN 20 include: