OpenStep Solaris

Liam Proven lproven at
Mon Jan 6 05:52:35 CST 2020

On Mon, 6 Jan 2020 at 00:12, Chris Hanson <cmhanson at> wrote:
> Not quite! Sun was a participant in creating the OpenStep standard (the NS class prefix stands for “NeXT/Sun”) and *created their own implementation* of OpenStep for Solaris. (Just as GNUstep is an independent implementation of the OpenStep spec under the FSF umbrella, and OPENSTEP/Mach and OPENSTEP/Enterprise were NeXT’s implementations.)
> OpenStep Solaris was released, both the user and developer environment, and you should be able to find them today and install them on Solaris 2.5 or later. I think OpenStep will run on everything through Solaris 7 or Solaris 8, but at some point it stopped working because it required Display PostScript in the window server.
> > Sun also bought a number of NeXTstep software houses, including
> > Lighthouse, but didn't release the code.
> Indeed, that was post-OpenStep; they weren’t buying companies like Lighthouse to get a suite of applications for OpenStep Solaris, they were buying them to port their stuff to Java (since Java was based rather heavily on Objective-C, and some aspects of the Java frameworks’ designs on OpenStep).

Fascinating stuff -- thanks for the clarification!

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