[Bug 2084693] Re: [Oracular] Allow overriding Rust tools

** Patch added: "KTML submission"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2084693/+attachment/5828677/+files/0001-UBUNTU-Packaging-Allow-rust-overrides.patch

** Changed in: linux (Ubuntu Oracular)
Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/2084693

Title:
[Oracular] Allow overriding Rust tools

Status in linux package in Ubuntu:
Triaged
Status in linux source package in Oracular:
Triaged

Bug description:
== SRU Justification ==

=== Impact ===

When we backport kernels as HWE kernels we want to enable Rust in
24.04/Noble builds. For that it necessary to pin to specific versions
of the compiler and binutils. For this we need a method to optionally
override those for the kernel build.

=== Fix ===

The suggested change adds the ability to specify which (with full path
if needed) command to run as rustc, rustfmt, and bindgen. It does not
change the defaults that are used.

=== Test ===

Check the build log for RUSTC, HOSTRUSTC, RUSTFMT, and BINDGEN being
added to the make calls.

=== Regression Potential ===

This would affect the outcome of the "rustavailable" check or anything
related to the rust modules being created. Since the defaults remain
unchanged this is not expected.

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