rust-lang/cc-rs

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Rust library for build scripts to compile C/C++ code into a Rust library

Stars: 2.2k
Forks: 616
Open beginner issues: 0
Indexed issues: 138
Avg merge: 22h 32m
Merged PRs (30d): 41

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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138 open issues indexed

Changelog should not include CI-only changes Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

rust-lang/cc-rs#1898 · 6 comments · 1 reaction · Opened Sep 13, 2026
Compile error in mimalloc 0.1.52 Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

rust-lang/cc-rs#1877 · 1 comment · Opened Aug 31, 2026
Add `Build::build_for_host` Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

rust-lang/cc-rs#1861 · 1 comment · Opened Aug 16, 2026
Broken behavior of cpp_link_stdlib_static Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

rust-lang/cc-rs#1856 · 3 comments · Opened Aug 13, 2026
Make it possible to recreate the results of `compile` via `compile_intermediates` Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

rust-lang/cc-rs#1818 · 7 comments · Opened Jul 30, 2026
bump MSRV Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

rust-lang/cc-rs#1805 · 10 comments · 1 reaction · Opened Jul 28, 2026
Option to write output to an `impl Write` rather than `stdout` Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

rust-lang/cc-rs#1769 · 5 comments · Opened Jun 24, 2026
RUSTFLAGS="-C target-feature=" doesn't seems to be taken into account Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

rust-lang/cc-rs#1734 · 1 comment · Opened May 22, 2026
Consider removing the shlex dependency in favor of an in-tree implementation Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/cc-rs#1725 · 2 comments · Opened May 12, 2026
use command files for tools that support it Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

rust-lang/cc-rs#1690 · Opened Mar 13, 2026
Should further environment variables be overridable? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

rust-lang/cc-rs#1688 · 3 comments · Opened Mar 11, 2026
Implement archiver functionality internally? Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1678 · 3 comments · Opened Feb 13, 2026
`prefer_clang_cl_over_msvc` is only tweakable from crates directly using `cc-rs` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/cc-rs#1673 · 11 comments · Opened Feb 9, 2026
Feature: Add `-fsanitize=address` for `x86_64-unknown-linux-gnuasan` Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/cc-rs#1666 · 2 comments · Opened Jan 28, 2026
Is there a reason `__set_env` is hidden? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1655 · 3 comments · Opened Jan 10, 2026
`CARGO_ENCODED_RUSTFLAGS` doesn't include flags for builtin Cargo options Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1613 · 1 comment · 1 reaction · Opened Nov 15, 2025
Support for libtool as the archiver on macOS Open

O-apple

Difficulty 4/5 3-5 days Newbie friendliness 38/100

rust-lang/cc-rs#1608 · 4 comments · Opened Nov 8, 2025
Env var priority? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1586 · 6 comments · Opened Oct 6, 2025
feature: zig-cc like cross compilation Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

rust-lang/cc-rs#1585 · 3 reactions · Opened Oct 6, 2025
Concrete instructions for getting MSVC Clang installed Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/cc-rs#1580 · 6 comments · Opened Sep 30, 2025
Autodisovery of xtensa toolchain Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1576 · 5 comments · Opened Sep 27, 2025
Support c/c++ library internal LTO Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1565 · 30 comments · Opened Sep 24, 2025
Building/linking on MSVC fails with LNK1107? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1563 · 10 comments · Opened Sep 22, 2025
-vvv annoyances Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1561 · 4 comments · Opened Sep 21, 2025
Broken under aarch64-pc-windows-msvc Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

rust-lang/cc-rs#1482 · 2 comments · Opened Jun 8, 2025
x86_64-linux-musl-g++ when compiling musl target Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rust-lang/cc-rs#1473 · 5 comments · Opened May 24, 2025
cross-compiling regression Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1469 · 17 comments · 2 reactions · Opened May 10, 2025
Check for libc++ and libstdc++ Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/cc-rs#1468 · 6 comments · Opened May 10, 2025
Handle all GNU compiler prefixes Open

enhancement O-linux

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1454 · Opened Apr 6, 2025
warning: Compiler family detection failed on MacOS Open

O-apple O-windows

Difficulty 3/5 1-2 days Newbie friendliness 42/100

rust-lang/cc-rs#1445 · 2 comments · Opened Apr 2, 2025
`clang` build fails with "invalid version 'softfloat'" on aarch64-unknown-none-softfloat target with cc crate 1.2.17 Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/cc-rs#1441 · 15 comments · 1 reaction · Opened Mar 21, 2025
Improper `target` flag for newer NDKs Open

bug O-android

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1440 · 5 comments · Opened Mar 20, 2025
Avoid static list of LLVM triples Open

bug

rust-lang/cc-rs#1431 · 1 reaction · 1 assignee · Opened Mar 13, 2025
Invoke `rustc` to get target information? Open

question

Difficulty 5/5 Over a week Newbie friendliness 28/100

rust-lang/cc-rs#1430 · 5 comments · Opened Mar 13, 2025
Tracking issue for changes to target triples Open

rust-lang/cc-rs#1426 · 15 comments · 1 assignee · Opened Feb 28, 2025
Supported compiler versions? Open

help wanted question

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1396 · 8 comments · 1 reaction · Opened Feb 9, 2025
Cut down on CI steps? Open

github_actions question

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rust-lang/cc-rs#1392 · 3 comments · Opened Feb 5, 2025
Detect common misconfigurations on error Open

enhancement help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1391 · Opened Feb 5, 2025
Add mips-mti-none-elf and mipsel-mti-none-elf Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

rust-lang/cc-rs#1345 · 1 comment · Opened Jan 5, 2025
Command Line error D8003: Name of source file not found. Win11 with MSVC Open

bug O-windows

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1331 · 7 comments · 1 reaction · Opened Dec 23, 2024
Regression in 1.2: `relocation R_WASM_MEMORY_ADDR_SLEB cannot be used against symbol `.L.str.2`` Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rust-lang/cc-rs#1314 · 4 comments · Opened Dec 5, 2024
Reduce generated target info compile-time/binary size Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1272 · 1 comment · Opened Nov 5, 2024
New cargo target detection regress *-esp-idf target builds. Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/cc-rs#1262 · 11 comments · Opened Nov 2, 2024
Clang: Pass `-target` instead of `--target=` Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

rust-lang/cc-rs#1251 · Opened Nov 1, 2024
Use more information from `rustc`'s target spec Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/cc-rs#1249 · 1 reaction · Opened Oct 31, 2024
Unable to link stdc++ for example when building rust library Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

rust-lang/cc-rs#1206 · 9 comments · Opened Sep 15, 2024
Tests are not included in published crate Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

rust-lang/cc-rs#1192 · 1 comment · Opened Aug 25, 2024
Deployment target incorrect in rust-std assets on apple platforms Open

O-apple

rust-lang/cc-rs#1171 · 2 comments · 1 assignee · Opened Aug 4, 2024
Regression on x86_64-apple-darwin between 1.0.93 and 1.0.100 Open

O-apple

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/cc-rs#1170 · 6 comments · Opened Aug 1, 2024
Use raw-dynlib when msrv is bumped to 1.67 Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

rust-lang/cc-rs#1159 · 2 comments · Opened Jul 14, 2024

rust-lang/cc-rs

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