Arch Linux

hfenigma

Member

Registered: 2017-06-29

Posts: 32

[SOLVED] some arch manual pages are incorrect

Hi. I am not sure if this is the right place to report for arch manual pages. Since the arch gitlab is gated by account registration.

The rustc page shows

-O
    Equivalent to -C opt-level=2.

that's different from rustc output

❯ /usr/bin/rustc --help | grep -- "-O"
    -O                  Equivalent to -C opt-level=3

rust version

❯ pacman -Qi rust
Name            : rust
Version         : 1:1.91.1-2
Description     : Systems programming language focused on safety, speed and concurrency
Architecture    : x86_64
URL             : https://www.rust-lang.org/
Licenses        : Apache-2.0 OR MIT
Groups          : None
Provides        : cargo  rustfmt
Depends On      : bash  compiler-rt  curl  gcc  gcc-libs  glibc  libssh2  lld  llvm-libs  openssl  zlib
Optional Deps   : gdb: rust-gdb script [installed]
                  lldb: rust-lldb script
Required By     : cargo-expand  cargo-outdated  rust-src
Optional For    : None
Conflicts With  : cargo  rust-docs<1:1.56.1-3  rustfmt
Replaces        : cargo  cargo-tree  rust-docs<1:1.56.1-3  rustfmt
Installed Size  : 269.21 MiB
Packager        : Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Build Date      : Thu 13 Nov 2025 01:49:28 AM CST
Install Date    : Thu 11 Dec 2025 11:24:43 AM CST
Install Reason  : Explicitly installed
Install Script  : No
Validated By    : Signature

Last edited by hfenigma (2025-12-11 10:17:43)

Allan

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From: Brisbane, AU

Registered: 2007-06-09

Posts: 11,619

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Re: [SOLVED] some arch manual pages are incorrect

Ad what does the man page in the package say?

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seth

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Registered: 2012-09-03

Posts: 71,465

Re: [SOLVED] some arch manual pages are incorrect

https://github.com/rust-lang/rust/blob/ … ustc.1#L65
https://github.com/rust-lang/rust/commi … 8d64098537 was laste updated from the --help output 3 years ago, so the correct location to file a bug is https://github.com/rust-lang/rust/issues
Reason is likely https://github.com/rust-lang/rust/issues/98977

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hfenigma

Member

Registered: 2017-06-29

Posts: 32

Re: [SOLVED] some arch manual pages are incorrect

Ad what does the man page in the package say?

The man page in the package says

Equivalent to -C opt-level=2.

https://github.com/rust-lang/rust/blob/ … ustc.1#L65
https://github.com/rust-lang/rust/commi … 8d64098537 was laste updated from the --help output 3 years ago, so the correct location to file a bug is https://github.com/rust-lang/rust/issues
Reason is likely https://github.com/rust-lang/rust/issues/98977

Yes, thanks. I will report there.