** Summary **

'''[http://www.gnu.org/%|%GNU]''' is an short for '''[GNU]'s Not [Unix]''' and is
therefore a recursively-defined acronym.


**  Attributes **

   website:   http://www.gnu.org/

** Description **

'''GNU''' refers to various closely related things, but they all stem from
[Richard Stallman] and the [FSF]'s attempt to create a complete [UNIX] system
that is completely free from commercial ties.


Tcl programmers should take note of two particular aspects of the GNU project:

   '''[gcc]''':   the GNU [C] Compiler, is by far and wide the most widely portable [C] compiler in the world, and it is (or should be) the aim of anyone developing the [Tcl] core (or common extensions) to compile completely cleanly using this compiler, even when all warnings are turned on.

   '''[GPL]''':   The GNU Public License is a family of software licenses that are common among FSF developers and many others.

'''gcc''' is called nowadays the GNU Compiler Collection, given the variety of front- and backends to the same internal engine.


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