My impression of MVS OE was that IBM implemented only what it needed for certification.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Rick Troth [tro...@gmail.com] Sent: Wednesday, May 31, 2023 12:19 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: z/OS 3.1: Now UNIXR Certified It was 1995. I remember because I was particularly enthused about the advent of "OpenEdition" on MVS and on VM. It was ironic, and a bit of a hoot, that other Unix systems (e.g., Slolaris, HPUX, even AIX) did not have the same certification. There were two problems. First, USS was kinda slow for some things, and a bit fragile when configuring and building many FLOSS applications. Also EBCDIC. The POSIX spec didn't (or didn't clearly) address the character set issue. I know that the problem has gotten "better", but it's still a thing. I eventually backed off my own demand that "OE" speak ASCII. The fact that newline was consistent and reliably identifiable in both charsets was enough. But nobody really leveraged it (newline as an A/E indicator) to the extent we should have. In spite of the caveats, USS was (is) an excellent implementation. OpenVM too! -- R; <>< On 5/26/23 12:24, Mohammad Khan wrote: > FSF and Linux can reasonably be ignored in this discussion but was there a > time when Unix System Services (of z/OS or OS/390) was competitor to other > platforms that claimed to be UNIX? How many third party apps were available / > supported / marketed for USS as against AIX, HPUX or Solaris? How many of > those were actually being run on USS? Certificate is fine on the wall but > what actually does the job is more important. > > mkk > > On Fri, 26 May 2023 15:40:34 +0200, Tony Harminc <t...@harminc.net> wrote: > >>> To be contentious: nowadays nobody cares. Indeed, when we talk about >>> non-Windows distributed system we usually think about Linux. Even POWER >>> machines are more and more used for Linux workloads, not AIX. And the >>> Linux is not UNIX certified. >>> >> The only use I have found in many years for having z/OS UNIX certified is >> so that when someone says they hear that z/OS has a "UNIX emulator" or any >> one of many similar bogus claims, I can say "No, z/OS *is* UNIX. And BTW >> Linux is *not* UNIX." (Of course the FSF would say, Gnu's Not Unix.)" >> >> Tony H. >> > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
