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(g77-295.info)Fortran 90 Support

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Fortran 90 Support
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   `g77' does not support many of the features that distinguish Fortran
90 (and, now, Fortran 95) from ANSI FORTRAN 77.

   Some Fortran 90 features are supported, because they make sense to
offer even to die-hard users of F77.  For example, many of them codify
various ways F77 has been extended to meet users' needs during its
tenure, so `g77' might as well offer them as the primary way to meet
those same needs, even if it offers compatibility with one or more of
the ways those needs were met by other F77 compilers in the industry.

   Still, many important F90 features are not supported, because no
attempt has been made to research each and every feature and assess its
viability in `g77'.  In the meantime, users who need those features must
use Fortran 90 compilers anyway, and the best approach to adding some
F90 features to GNU Fortran might well be to fund a comprehensive
project to create GNU Fortran 95.