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Development with GNU/Linux
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Fortran Support

Fortran77 has been superseded by Fortran90 and Fortran95. With some extremely minor exceptions, the whole of Fortran77 is a subset of Fortran90, and Fortran95 was a relatively minor revision to Fortran90. Fortran77 is still important because a huge amount of code exists.

GNU's g77 is an excellent Open Source Fortran77 compiler.

There are two incomplete Fortran 90/95 Free/Open Source compilers.

Convert Fortran 77 to C or C++ (also the name of the GNU Fortran library).
Fortran 77 program checker.

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