TMUX and Screen on IRIX - The state of affairs - Printable Version

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TMUX and Screen on IRIX - The state of affairs - Raion - 02-04-2020

So I've been working on both tmux and screen for IRIX. Spoiler: the situation ain't quite that good. Read on. 

Good News

We have a version of screen: http://irix.cc/raion/working/screen-4.0.3.tar.gz that works quite alright without any patches, on MIPSPro even. 

Bad News
Post-Unicode tmux is unlikely to be usable. IRIX support was shelved in tmux in 2009, but I've never found any evidence that tmux works on any version, on any IRIX. 

I did get far in tmux-0.8: http://irix.cc/raion/failed-builds/tmux-0.8-failed-irix.tar 

Here's where that's stuck: 

https://pastebin.com/NgzuFEgf

There is an old forkpty-irix for tmux, and I added compatibility for asprintf and that fixed a number of issues. But it still won't compile with GCC, doesn't even get off the ground with mipspro. This is pre-unicode. Tmux 0.9 and up have really messed up build systems. I didn't document a lot of what I did as I was hyped up on caffeine and beer. 

I managed to patch Screen 4.2.1 for IRIX/mipspro by adding a definition for SCM_RIGHTS to socket.c:

http://irix.cc/raion/buggy/screen-4.2.1.tar.gz

But it bitches about bad ttys when I try to run it. Strange. Not sure what that's about.

For now, I'm moving on for now. I think that it's possible to get both tmux and newer screen eventually working on IRIX, but I've got other things I can be doing with my time. 

Hopefully this documents and helps along further efforts. I'm going to go back to other stuff I can do.

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