licensing NOT clear for me

DJ Delorie
Fri Mar 19 07:29:00 GMT 1999

>  - if you distribute on cdrom, include the cywin sources (no problem,
> right?)

cygwin *and* your program's sources, but right - no problem if you
include all the sources on the cdrom.

>  - if you distribute on floppy, include the cywin sources (aargh!)

That's a lot of floppies.

>  - if you distribute via http/ftp, place the cygwin sources on the
> same site permitting users who _chose_ to do so to get the relevant
> sources.

Yes, but again, both cygwin's sources and the sources to your

> You could make it awkward by splitting the files into 1MB lumps and use
> some strange compression-format, if you wanted to discourage unnecessary
> dowloads.

zipsplit does this for you.  Note that purposefully obfuscating the
sources or complicating the download violates the GPL.

> You _don't_ have to wrap _all_ the sources up in the same
> archive. They can be separately-downloadable files.

Yes, but they all must be *available*.  Breaking up the sources and
the binaries is actually a good idea.

> I'm not aware of any separate source archive which produces _only_
> the dll and not the tools; such an archive, if you created it, would
> both fulfil GPL requirements and be easier to fit on some floppies.
> FWIW, the cdk/src/winsup directory - i.e. the sources for the cygwin
> dll - zip into about 700 kb. (one floppy disk!)

You'd need winsup, newlib, libiberty, and toplevel.  It tar.gz's to
about 4Mb.

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