That was a lot later. Michael wrote that story in the early 90's, probably 90 or 91 while I was working there, during the transition from SunOS 4.1.3 to Solaris, when they forced all the engineers to "upgrade".
He and Gumby and John Gilmore founded Cygnus Support ("We make free software affordable") in '89, and Michael was consulting at Sun, working on supporting gcc as an alternative to the shitty AT&T C++ compiler. Remember that Sun unbundled the C compiler from Solaris and started charging for it, and AT&T charged for their shitty C++ compiler too.
The Free Software Community Puts A Free Compiler Back In Solaris 2
Sun Microsystems, Inc. decided to unbundle the C compiler from their latest operating system, Solaris 2. Sun users were extremely upset to lose what they saw as an essential component of the system software. Faced with dramatic increases in licensing fees, early Solaris 2 users turned to free software for a reasonable alternative.
Spearheading the effort to port the Free Software Foundation’s GNU C compiler was Palo Alto based Cygnus Support, a company that specializes in providing commercial support for free software. To fund the development effort, Cygnus appealed to the early adopters of Solaris 2. They offered a year of technical support for up to 5 users, and a commitment that the compiler would ship with Solaris 2, in return for a prepaid fee of $2,000.
To insure wide distribution of the free compiler and debugger, Cygnus negotiated with SunSoft, Inc. to make the GNU C development tools available on CDware. CDware is a free CD-ROM available from Sun and shipped at no cost to over 90,000 Sun users.
If McNealy or Zander was running something else, that would have been the exception.