rustup fails with fatal: libgcc_s.so.1: open failed: No such file or directory on Sun 10

[shanebishop]

Verification

• I searched for recent similar issues at https://github.com/rust-lang/rustup/issues?q=is%3Aissue+is%3Aopen%2Cclosed and found no duplicates.
• I am on the latest version of Rustup according to https://github.com/rust-lang/rustup/tags and am still able to reproduce my issue.

Problem

rustup fails on Sun 10.

There are multiple problems that occur:

1. The /bin/sh that comes with Sun 10 does not support $(...) syntax for subshells. This can be worked around by changing the shebang to /bin/bash, but then there are still the problems below.
2. Invocations of uname with -o fail with /usr/bin/uname: illegal option -- o.
3. Invocations of grep with -q fail with grep: illegal option -- q.
4. Most importantly, rustup fails with

ld.so.1: rustup-init: fatal: libgcc_s.so.1: open failed: No such file or directory
rustup.sh: line 521:  3578 Killed                  "$@"

Steps

1. Download rustup 1.27.1
2. Change the shebang to #/bin/bash (to avoid issue 1 above)
3. SCP the rustup file with the new shebang to a Sun 10 machine
4. Run chmod +x on the script to give it executable permissions
5. Run the script

Possible Solution(s)

No response

Notes

I am aware that Sun 10 is not one of the platforms supported by Rust (Rust's support for Sun/Solaris starts with Sun 11). However, I would expect the rustup script to work on Sun 10, in order to allow people to use the script to download a Rust compiler for using custom targets to build on the platform. (But maybe I am assuming too much - maybe there is no pre-built Sun 10 rustc.)

Rustup version

1.27.1

Installed toolchains

The output of rustup show isn't meaningful (there are a bunch of errors).

OS version

Sun 10

[rami3l]

@shanebishop Thanks a lot for filing this issue!

As you've already found out, according to our current target policy, Solaris 10 is not supported by the Rust project as a whole (i.e. neither as a host nor as a target), so even if Rustup happens to work, there will be no officially distributed rustc and other components, thus it's out of our project's scope to make it possible for a Solaris 10 machine to be used as a compilation host.

If you would like to run Rust programs on such a machine, I personally recommend using the "custom target" feature on a supported host platform, and then find a way to cross-compile for the target in question.

Thanks a lot for your comprehension, and have a nice day!

[shanebishop]

Thanks @rami3l.

In that case, are there instructions somewhere on how to build rustc from source?

[rami3l]

@shanebishop Here are some links that might be relevant to your custom target cross-compilation usage:

• https://docs.rust-embedded.org/embedonomicon/custom-target.html for defining a new custom target;
• https://doc.rust-lang.org/nightly/rustc/platform-support/mipsel-sony-psx.html for being able to use std and friends with build-std.

OTOH compiling rustc itself would be a more involved process, I suggest you make a new post on the Zulip server (https://rust-lang.zulipchat.com) if that's what you need.