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# Contributors to GNU Fortran

In addition to James Craig Burley, who wrote the front end, many people have helped create and improve GNU Fortran.

- The packaging and compiler portions of GNU Fortran are based largely on the GNU CC compiler. See section `Contributors to GNU CC' in Using and Porting GNU CC, for more information.
- The run-time library used by GNU Fortran is a minor repackaging of the `libf2c` library (combined from the `libF77` and `libI77` libraries) provided as part of `f2c`, available for free from `netlib` sites on the Internet.
- Cygnus Support and The Free Software Foundation contributed significant money and/or equipment to Craig's efforts.
- The following individuals served as alpha testers prior to `g77`'s public release. This work consisted of testing, researching, sometimes debugging, and occasionally providing small amounts of code and fixes for `g77`, plus offering plenty of helpful advice to Craig:
  - Jonathan Corbet
  - Dr. Mark Fernyhough
  - Takafumi Hayashi (The University of AIzu)---@email{takafumi@u-aizu.ac.jp}
  - Kate Hedstrom
  - Michel Kern (INRIA and Rice University)---@email{Michel.Kern@inria.fr}
  - Dr. A. O. V. Le Blanc
  - Dave Love
  - Rick Lutowski
  - Toon Moene
  - Rick Niles
  - Derk Reefman
  - Wayne K. Schroll
  - Bill Thorson
  - Pedro A. M. Vazquez
  - Ian Watson
- Scott Snyder (@email{snyder@d0sgif.fnal.gov}) provided the patch to add rudimentary support for `INTEGER*1`, `INTEGER*2`, and `LOGICAL*1`. This inspired Craig to add further support, even though the resulting support would still be incomplete, because version 0.6 is still a ways off.
- David Ronis (@email{ronis@onsager.chem.mcgill.ca}) inspired and encouraged Craig to rewrite the documentation in texinfo format by contributing a first pass at a translation of the old ``g77-0.5.16/f/DOC'` file.
- Toon Moene (@email{toon@moene.indiv.nluug.nl}) performed some analysis of generated code as part of an overall project to improve `g77` code generation to at least be as good as `f2c` used in conjunction with `gcc`. So far, this has resulted in the three, somewhat experimental, options added by `g77` to the `gcc` compiler and its back end.
- John Carr (@email{jfc@mit.edu}) wrote the alias analysis improvements.
- Thanks to Mary Cortani and the staff at Craftwork Solutions (@email{support@craftwork.com}) for all of their support.
- Many other individuals have helped debug, test, and improve `g77` over the past several years, and undoubtedly more people will be doing so in the future. If you have done so, and would like to see your name listed in the above list, please ask! The default is that people wish to remain anonymous.

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