linux-kernel - Re: [PATCH v2 07/11] kbuild: rust_is_available: fix confusion when a version appears in the path

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Message-ID: <181163f9-49fb-f75f-38bd-92766d1a2982@gmail.com>
Date:   Fri, 16 Jun 2023 11:10:49 -0300
From:   Martin Rodriguez Reboredo <yakoyoku@...il.com>
To:     Miguel Ojeda <ojeda@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Alex Gaynor <alex.gaynor@...il.com>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Benno Lossin <benno.lossin@...ton.me>,
        Alice Ryhl <aliceryhl@...gle.com>,
        Andreas Hindborg <nmi@...aspace.dk>,
        linux-kbuild@...r.kernel.org, rust-for-linux@...r.kernel.org,
        linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        Jordan Isaacs <mail@...saacs.com>,
        "Ethan D . Twardy" <ethan.twardy@...il.com>,
        Tiago Lam <tiagolam@...il.com>
Subject: Re: [PATCH v2 07/11] kbuild: rust_is_available: fix confusion when a
 version appears in the path

On 6/15/23 21:16, Miguel Ojeda wrote:
> `bindgen`'s output for `libclang`'s version check contains paths, which
> in turn may contain strings that look like version numbers [1][2]:
> 
>      .../6.1.0-dev/.../rust_is_available_bindgen_libclang.h:2:9: warning: clang version 11.1.0  [-W#pragma-messages], err: false
> 
> which the script will pick up as the version instead of the latter.
> 
> It is also the case that versions may appear after the actual version
> (e.g. distribution's version text), which was the reason behind `head` [3]:
> 
>      .../rust-is-available-bindgen-libclang.h:2:9: warning: clang version 13.0.0 (Fedora 13.0.0-3.fc35) [-W#pragma-messages], err: false
> 
> Thus instead ask for a match after the `clang version` string.
> 
> Reported-by: Jordan Isaacs <mail@...saacs.com>
> Closes: https://github.com/Rust-for-Linux/linux/issues/942 [1]
> Reported-by: Ethan D. Twardy <ethan.twardy@...il.com>
> Closes: https://lore.kernel.org/rust-for-linux/20230528131802.6390-2-ethan.twardy@gmail.com/ [2]
> Reported-by: Tiago Lam <tiagolam@...il.com>
> Closes: https://github.com/Rust-for-Linux/linux/pull/789 [3]
> Fixes: 78521f3399ab ("scripts: add `rust_is_available.sh`")
> Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
> ---
> [...]

Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@...il.com>