Problem

I tried running rustup-init.sh with sh on a recent install of illumos. Looking at the source code, I expected it to error with a nice error message telling me to use bash instead:

Instead, I got random errors about local not working.

My KSH_VERSION is Version jM 93+ 2012-08-01.
uname -a is SunOS illumos 5.11 illumos-676abcb77c i86pc i386 i86pc

Steps

1. install a recent install of illumos (I used openindiana OI-hipster-gui-20230502)
2. run rustup-init.sh

Possible Solution(s)

It seems a like a more robust detection would be to check for SunOS in uname, but I'm not sure how well that works on Solaris and haven't tested it (but I would assume that Solaris has SunOS too since "SunOS" predates "Solaris").

Alternatively, also checking for my version may work too, that version is pretty old too so it seems unlikely to change frequently.

Notes

No response

Rustup version

https://github.com/rust-lang/rustup/blob/ab81ee3c5ec3a41e9eaa35ae3108070adf751775/rustup-init.sh

Installed toolchains

none