"I figured, OK, the [Mach] part that has to talk to the machine has already been debugged," Stallman says, recalling the HURD team's troubles in a 2000 speech. "With that head start, we should be able to get it done faster. But instead, it turned out that debugging these asynchronous multithreaded programs was really hard. There were timing books that would clobber the files, and that's no fun. The end result was that it took many, many years to produce a test version."See Maui High Performance Computing Center Speech.
Whatever the excuse, or excuses, the concurrent success of the Linux-kernel team created a tense situation. Sure, the Linux kernel had been licensed under the GPL, but as Murdock himself had noted, the desire to treat Linux as a purely free software operating system was far from uniform. By late 1993, the total Linux user population had grown from a dozen or so Minix enthusiasts to somewhere between 20,000 and 100,000.GNU/Linux user-population numbers are sketchy at best, which is why I've provided such a broad range. The 100,000 total comes from the Red Hat "Milestones" site, http://www.redhat.com/about/corporate/milestones.html. What had once been a hobby was now a marketplace ripe for exploitation. Like Winston Churchill watching Soviet troops sweep into Berlin, Stallman felt an understandable set of mixed emotions when it came time to celebrate the Linux "victory."I wrote this Winston Churchill analogy before Stallman himself sent me his own unsolicited comment on Churchill: World War II and the determination needed to win it was a very strong memory as I was growing up. Statements such as Churchill's, "We will fight them in the landing zones, we will fight them on the beaches . . . we will never surrender," have always resonated for me.
Although late to the party, Stallman still had clout. As soon as the FSF announced that it would lend its money and moral support to Murdock's software project, other offers of support began rolling in. Murdock dubbed the new project Debian-a compression of his and his wife, Deborah's, names-and within a few weeks was rolling out the first distribution. "[Richard's support] catapulted Debian almost overnight from this interesting little project to something people within the community had to pay attention to," Murdock says.
In January of 1994, Murdock issued the " Debian Manifesto." Written in the spirit of Stallman's "GNU Manifesto" from a decade before, it explained the importance of working closely with the Free Software Foundation. Murdock wrote: The Free Software Foundation plays an extremely important role in the future of Debian. By the simple fact that they will be distributing it, a message is sent to the world that Linux is not a commercial product and that it never should be, but that this does not mean that Linux will never be able to compete commercially. For those of you who disagree, I challenge you to rationalize the success of GNU Emacs and GCC, which are not commercial software but which have had quite an impact on the commercial market regardless of that fact.
The time has come to concentrate on the future of Linux rather than on the destructive goal of enriching oneself at the expense of the entire Linux community and its future. The development and distribution of Debian may not be the answer to the problems that I have outlined in the Manifesto, but I hope that it will at least attract enough attention to these problems to allow them to be solved. Shortly after the Manifesto's release, the Free Software Foundation made its first major request. Stallman wanted Murdock to call its distribution "GNU/Linux." At first, Murdock says, Stallman had wanted to use the term " Lignux"-"as in Linux with GNU at the heart of it"-but a sample testing of the term on Usenet and in various impromptu hacker focus groups had merited enough catcalls to convince Stallman to go with the less awkward GNU/Linux.
Although some would dismiss Stallman's attempt to add the "GNU" prefix as a belated quest for credit, Murdock saw it differently. Looking back, Murdock saw it as an attempt to counteract the growing tension between GNU Project and Linux-kernel developers. "There was a split emerging," Murdock recalls. "Richard was concerned."
The deepest split, Murdock says, was over glibc. Short for GNU C Library, glibc is the package that lets programmers make "system calls" directed at the kernel. Over the course of 1993-1994, glibc emerged as a troublesome bottleneck in Linux development. Because so many new users were adding new functions to the Linux kernel, the GNU Project's glibc maintainers were soon overwhelmed with suggested changes. Frustrated by delays and the GNU Project's growing reputation for foot-dragging, some Linux developers suggested creating a " fork"-i.e., a Linux-specific C Library parallel to glibc.
In the hacker world, forks are an interesting phenomenon. Although the hacker ethic permits a programmer to do anything he wants with a given program's source code, most hackers prefer to pour their innovations into a central source-code file or " tree" to ensure compatibility with other people's programs. To fork glibc this early in the development of Linux would have meant losing the potential input of hundreds, even thousands, of Linux developers. It would also mean growing incompatibility between Linux and the GNU system that Stallman and the GNU team still hoped to develop.
As leader of the GNU Project, Stallman had already experienced the negative effects of a software fork in 1991. A group of Emacs developers working for a software company named Lucid had a falling out over Stallman's unwillingness to fold changes back into the GNU Emacs code base. The fork had given birth to a parallel version, Lucid Emacs, and hard feelings all around.Jamie Zawinski, a former Lucid programmer who would go on to head the Mozilla development team, has a web site that documents the Lucid/GNU Emacs fork, titled, "The Lemacs/FSFmacs Schism." http://www.jwz.org/doc/lemacs.html
Murdock says Debian was mounting work on a similar fork in glibc source code that motivated Stallman to insist on adding the GNU prefix when Debian rolled out its software distribution. "The fork has since converged. Still, at the time, there was a concern that if the Linux community saw itself as a different thing as the GNU community, it might be a force for disunity."