Bug reports and patch submission
- The best way to contribute patches is to create a Mercurial changeset.
- Learn how to use Mercurial.
- Commit message guidelines.
By submitting patches to this project, you agree to the following conditions:
- Your contribution will be released under the terms of the GNU GPL, version 3 or any later version.
- Your contribution must be an independent work or derived from code that may be released under the terms of the GPL. Under no circumstances may it be based on code from Matlab or other non-free code that you may have access to view.
- In the Octave source code, all files are marked with a copyright statement that says "Copyright (C) YYYY-YYYY The Octave Project Developers". This copyright notice is used to ease the burden of maintaining copyright information in the source files, not to diminish or remove credit for contributions. Detailed information about what changes have been made and who has made them is maintained in the revision history of the Octave sources.
- If you wish, you will be credited as a contributor in the Octave documentation.
Building from development sources
- See Building.
Apart from C++ and Octave language (m-files), Octave's sources include files written in C, Fortran, M4, Perl, Unix shell, AWK, Texinfo, and TeX. There are not many rules to follow when using these other languages; some of them are summarized below. In any case, the golden rule is: if you modify a source file, try to follow any conventions you can detect in the file or other similar files.
- See C++ style guide. For C, you should follow all C++ rules that can apply.
- See Octave style guide.
Help text style
If you modify a Fortran file, you should stay within Fortran 77 with
common extensions like
END DO. Currently, we want ensure that
it is possible to compile all sources with the gfortran compiler, without
special flags if possible. This usually means that non-legacy compilers
also accept the sources.
The M4 macro language is mainly used for Autoconf configuration files. You should follow normal M4 rules when contributing to these files. Some M4 files come from external source, namely the Autoconf archive.
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