PApabs3·Nov 26, 2025
Also there is a rustc codegen backend that uses GCC, so you can just skip the C part:
https://github.com/rust-lang/rustc_codegen_gcc
In APT Rust requirement raises questionsrust-lang
rustc_codegen_gcc
Rust2021–2026
rust-lang / rustc_codegen_gcc
rustc_codegen_gcc
libgccjit AOT codegen for rustc
18Distinct people
22Mentions
0Explicit recommenders
1.2KGitHub stars
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What it is
libgccjit AOT codegen for rustc
GitHub
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Also in these discussions
- rust-gcc/gccrs · linked in 4 of the same discussions
Mentioned in the same Hacker News threads. That is not proof they are substitutes.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 6:01:08 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year22 dated mentions
Observed mentions: 2021-12-08 16:07:15 UTC to 2026-07-03 22:09:52 UTC.
* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 3 | 0 | 3 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 9 | 0 | 9 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 5 | 1 | 4 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 2 | 0 | 2 |
What Hacker News says
5 sourcesShouldn't the codegen_gcc project[1] theoretically allow Rust to target backends that only GCC supports?
[1] https://github.com/rust-lang/rustc_codegen_gcc
In Hard Rust requirements from May onwardRustc_codegen_GCC: Libgccjit AOT Codegen for Rustc
3 points · Open discussionHere’s the set of platforms Rust supports [1] and indeed it has broad support due to LLMV. It obviously still needs to port it’s platform-specific parts of the stdlib to the platforms that aren’t nostd. There’s also [2] which broadens to the set of platforms that GCC supports although I think it might be more bleeding edge than even tier 3 platforms at the moment.
I think the only place C really beats Rust is in vendors with toolchains they’ve stopped investing in. More broadly there’s clearly pressure for the industry to abandon C/C++ in favor of Rust given the inability of the language to be modernized into a safe version.
[1] https://doc.rust-lang.org/nightly/rustc/platform-support.htm...
[2] https://github.com/rust-lang/rustc_codegen_gcc
In Zlib-Rs Is Not Only Safer but Now Outperforming Zlib C ImplementationsThen use the GCC backend. https://github.com/rust-lang/rustc_codegen_gcc
In Greg K-H: "Writing new code in Rust is a win for all of us"