OSDev.org

Does anyone know where i can find the POSIX Specs ?

iirc, they're not available for free and must be ordered at posix org. or something ... maybe things have change, though ...

http://www.unix.org/single_unix_specification/ is not really POSIX, but it appears to be a superset of POSIX specifications ... not really an answer, but probably a good (but huge) resource.

more precisely, http://www.unix-systems.org/what_is_unix/unixv2.pdf holds a table of what functions are mandatory in the POSIX specifications out of the huge Single Unix specifications ... by cross referencing with manual pages or single HTML pages of the Single Unix specification, you may get something close to what you'd like to have.

hope it'll help.

The PDF will be very helpful. (damned! there's a lot of things to implement )
Thank you for your help, Pype

On a related note, be aware that...


On the upside, an OS developed to implement the POSIX standard will be much easier than a roll-your-own, including the ability to run POSIX (Unix, *BSD, Linux) software with minimal adjustments.

On the downside, you might get hard pressed to tell where your POSIX OS is unique / better than just-another-Unix-derivative.