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   [53]GNU Home  / [54]Philosophy / [55]Essays & articles /
   [56]Licensing free software / [57]Copyleft /

Copyleft: Pragmatic Idealism


    by [58]Richard Stallman

   Every decision a person makes stems from the person's values and goals. People
   can have many different goals and values; fame, profit, love, survival, fun, and
   freedom, are just some of the goals that a good person might have. When the goal
   is a matter of principle, we call that idealism.

   My work on free software is motivated by an idealistic goal: spreading freedom
   and cooperation. I want to [59]encourage free software to spread, replacing
   proprietary software that forbids cooperation, and thus make our society better.

   That's the basic reason why the GNU General Public License is written the way it
   is--as a [60]copyleft. All code added to a GPL-covered program must be free
   software, even if it is put in a separate file. I make my code available for use
   in free software, and not for use in proprietary software, in order to encourage
   other people who write software to make it free as well. I figure that since
   proprietary software developers use copyright to stop us from sharing, we
   cooperators can use copyright to give other cooperators an advantage of their
   own: they can use our code.

   Not everyone who uses the GNU GPL has this goal. Many years ago, a friend of mine
   was asked to rerelease a copylefted program under noncopyleft terms, and he
   responded more or less like this:

     "Sometimes I work on free software, and sometimes I work on proprietary
     software--but when I work on proprietary software, I expect to get paid".

   He was willing to share his work with a community that shares software, but saw
   no reason to give a handout to a business making products that would be
   off-limits to our community. His goal was different from mine, but he decided
   that the GNU GPL was useful for his goal too.

   If you want to accomplish something in the world, idealism is not enough--you
   need to choose a method that works to achieve the goal. In other words, you need
   to be "pragmatic". Is the GPL pragmatic? Let's look at its results.

   Consider GNU C++. Why do we have a free C++ compiler? Only because the GNU GPL
   said it had to be free. GNU C++ was developed by an industry consortium, MCC,
   starting from the GNU C compiler. MCC normally makes its work as proprietary as
   can be. But they made the C++ front end free software, because the GNU GPL said
   that was the only way they could release it. The C++ front end included many new
   files, but since they were meant to be linked with GCC, the GPL did apply to
   them. The benefit to our community is evident.

   Consider GNU Objective C. NeXT initially wanted to make this front end
   proprietary; they proposed to release it as .o files, and let users link them
   with the rest of GCC, thinking this might be a way around the GPL's requirements.
   But our lawyer said that this would not evade the requirements, that it was not
   allowed. And so they made the Objective C front end free software.

   Those examples happened years ago, but the GNU GPL continues to bring us more
   free software.

   Many GNU libraries are covered by the GNU Lesser General Public License, but not
   all. One GNU library which is covered by the ordinary GNU GPL is Readline, which
   implements command-line editing. I once found out about a nonfree program which
   was designed to use Readline, and told the developer this was not allowed. He
   could have taken command-line editing out of the program, but what he actually
   did was rerelease it under the GPL. Now it is free software.

   The programmers who write improvements to GCC (or Emacs, or Bash, or Linux, or
   any GPL-covered program) are often employed by companies or universities. When
   the programmer wants to return his improvements to the community, and see his
   code in the next release, the boss may say, "Hold on there--your code belongs to
   us! We don't want to share it; we have decided to turn your improved version into
   a proprietary software product".

   Here the GNU GPL comes to the rescue. The programmer shows the boss that this
   proprietary software product would be copyright infringement, and the boss
   realizes that he has only two choices: release the new code as free software, or
   not at all. Almost always he lets the programmer do as he intended all along, and
   the code goes into the next release.

   The GNU GPL is not Mr. Nice Guy. It says no to some of the things that people
   sometimes want to do. There are users who say that this is a bad thing--that the
   GPL "excludes" some proprietary software developers who "need to be brought into
   the free software community".

   But we are not excluding them from our community; they are choosing not to enter.
   Their decision to make software proprietary is a decision to stay out of our
   community. Being in our community means joining in cooperation with us; we cannot
   "bring them into our community" if they don't want to join.

   What we can do is offer them an inducement to join. The GNU GPL is designed to
   make an inducement from our existing software: "If you will make your software
   free, you can use this code". Of course, it won't win 'em all, but it wins some
   of the time.

   Proprietary software development does not contribute to our community, but its
   developers often want handouts from us. Free software users can offer free
   software developers strokes for the ego--recognition and gratitude--but it can be
   very tempting when a business tells you, "Just let us put your package in our
   proprietary program, and your program will be used by many thousands of people!"
   The temptation can be powerful, but in the long run we are all better off if we
   resist it.

   The temptation and pressure are harder to recognize when they come indirectly,
   through free software organizations that have adopted a policy of catering to
   proprietary software. The X Consortium (and its successor, the Open Group) offers
   an example: funded by companies that made proprietary software, they strived for
   a decade to persuade programmers not to use copyleft. When the Open Group tried
   to [61]make X11R6.4 nonfree software, those of us who had resisted that pressure
   were glad that we did.

   In September 1998, several months after X11R6.4 was released with nonfree
   distribution terms, the Open Group reversed its decision and rereleased it under
   the same noncopyleft free software license that was used for X11R6.3. Thank you,
   Open Group--but this subsequent reversal does not invalidate the conclusions we
   draw from the fact that adding the restrictions was possible.

   Pragmatically speaking, thinking about greater long-term goals will strengthen
   your will to resist this pressure. If you focus your mind on the freedom and
   community that you can build by staying firm, you will find the strength to do
   it. "Stand for something, or you will fall for anything".

   And if cynics ridicule freedom, ridicule community...if "hard-nosed realists" say
   that profit is the only ideal...just ignore them, and use copyleft all the same.
     ____________________________________________________________________________

   This essay is published in [62]Free Software, Free Society: The Selected Essays
   of Richard M. Stallman.
     ____________________________________________________________________________

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