RHEL 8 no longer supported?

[dominikwerder]

rust-analyzer requires now glibc 2.29, so does that mean rust-analyzer no longer supports RHEL 8 ?

[lnicola]

Duplicate of #13081

[dominikwerder]

Seeing that #13081 is "closed" as well, does that mean that redhat 8 is not supported by rust-analyzer? Isn't redhat 8 quite widely used?

[lnicola]

If you read the discussion, you can find an explanation and three workarounds (using rustup, installing the musl variant or staying on an older version of RA). Building from source also works.

[dominikwerder]

Of course, I see the workarounds, it just got me wonder why it seems to be a no-goal to maintain the good user experience on such a widely used target..

[lnicola]

The release binaries are built on GitHub. Except for the MUSL version, we don't have the infrastructure for cross-compilation set up, and the GHA workflows are already pretty complicated right now. If someone sends a PR for this, we might merge it, but it's probably not going to be a priority otherwise.

We generally don't go out of our way to support older software versions (we update to new toolchains relatively soon, we don't try to support older releases of Code etc.). Users who need (or want) to stay on older distros have some workarounds, at least.

[dominikwerder]

Ok, thank you for the explanation!

[lnicola]

@dominikwerder if you can use a beta toolchain, can you install the MUSL version and see if it works for you?

[lnicola]

Error relocating /lib/libgcc_s.so.1: __cpu_indicator_init: symbol not found
Error relocating /lib/libgcc_s.so.1: __cpu_model: symbol not found
Error relocating /lib/libgcc_s.so.1: _dl_find_object: symbol not found

Well, I suppose not 😄.

[bjorn3]

The musl version is dynamically linked, so you need musl libc.so installed locally:

rust-analyzer/.github/workflows/release.yaml

Line 132 in fdc28b4

RUSTFLAGS: "-C link-arg=-fuse-ld=lld -C target-feature=-crt-static"

[lnicola]

Yeah, I posted some benchmarks in #13086.

[dominikwerder]

@lnicola same for this musl executable it's not a static.

The workaround using the RA from nightly seems the easiest so far.