mozilla/cbindgen

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A project for generating C bindings from Rust code

Stars: 3k
Forks: 386
Open beginner issues: 0
Indexed issues: 226
Avg merge: 1h 43m
Merged PRs (30d): 1

Dominant language: Rust
License: MPL-2.0
Last GitHub push: Aug 22, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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226 open issues indexed

Panic on unlikely source code. Open

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

mozilla/cbindgen#1184 · 1 reaction · Opened Sep 14, 2026
`assertion failed` when two generic enums share variant names and are monomorphized over the same concrete type Open

Difficulty 3/5 1-2 days Newbie friendliness 64/100

mozilla/cbindgen#1166 · 2 comments · Opened Jun 10, 2026
Windows long path issues with the exported depfile Open

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

mozilla/cbindgen#1162 · 2 comments · Opened May 4, 2026
Cannot generate corresponding C/C++ structure with `#![feature(generic_const_exprs)]` Open

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

mozilla/cbindgen#1157 · 2 comments · Opened Mar 31, 2026
pub static constants are not prefixed with .with_item_prefix configuration Open

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

mozilla/cbindgen#1135 · Opened Mar 24, 2026
`test_body` fails with C++20 P1766R1, `non-c-typedef-for-linkage` Open

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

mozilla/cbindgen#1129 · 2 comments · Opened Feb 10, 2026
Incorrect C header generated on typed enum Open

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

mozilla/cbindgen#1127 · 1 comment · Opened Feb 3, 2026
Warn when exporting a non-extern-C function pointer Open

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

mozilla/cbindgen#1125 · Opened Dec 16, 2025
Failed to generate bindings when use `cargo-xwin` Open

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

mozilla/cbindgen#1124 · 1 comment · 2 reactions · Opened Dec 13, 2025
Force exporting typedef Open

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

mozilla/cbindgen#1122 · Opened Nov 25, 2025
0.29.0 compile warning Open

Difficulty 1/5 Under an hour Newbie friendliness 72/100

mozilla/cbindgen#1121 · Opened Nov 9, 2025
Allow for more granular documentation parsing Open

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

mozilla/cbindgen#1120 · Opened Nov 4, 2025
Document that "defines" and "parse.expand" no longer work together with latest nightlies Open

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

mozilla/cbindgen#1107 · 1 comment · Opened Sep 17, 2025
cbindgen fails to resolve associated type names in VTable structs generated by procedural macros Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

mozilla/cbindgen#1106 · 2 comments · Opened Sep 15, 2025
Support for struct-scoped type aliases Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

mozilla/cbindgen#1099 · 4 comments · Opened Aug 22, 2025
Feature Request: allow specifying that a union should be anonymous Open

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

mozilla/cbindgen#1097 · 2 reactions · Opened Aug 15, 2025
Can't handle bitflags bits method calls correctly Open

bug help wanted

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

mozilla/cbindgen#1096 · 6 comments · Opened Aug 2, 2025
Feature request: Allow `constexpr` in C Open

enhancement help wanted

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

mozilla/cbindgen#1095 · Opened Jul 28, 2025
[feat] `cbindgen.toml` schema Open

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

mozilla/cbindgen#1089 · 1 reaction · Opened Jul 10, 2025
test failures for lib_default_uses_debug_build, lib_explicit_debug_build and lib_explicit_release_build Open

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

mozilla/cbindgen#1087 · 1 comment · Opened Jul 3, 2025
Private type aliases result in a warning Open

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

mozilla/cbindgen#1082 · Opened Jun 6, 2025
Remove tests from published crate? Open

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

mozilla/cbindgen#1081 · 2 comments · Opened Jun 6, 2025
parse.expand.features also manipulates output for regular exports which arent expanded Open

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

mozilla/cbindgen#1080 · Opened Jun 5, 2025
Incorrect handling of associated constants in traits Open

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

mozilla/cbindgen#1078 · Opened May 23, 2025
Allow excluding by regex or wildcard Open

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

mozilla/cbindgen#1072 · 1 reaction · Opened May 2, 2025
Incompatibility with non-mod.rs module layout Open

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

mozilla/cbindgen#1069 · Opened Apr 16, 2025
Strange monomorphism for generic with array in type parameter Open

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

mozilla/cbindgen#1068 · Opened Apr 15, 2025
Skip export prefix on certain objects Open

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

mozilla/cbindgen#1061 · 3 comments · Opened Mar 14, 2025
MaybeUninit, ManuallyDrop, and Pin bindings is't transparent Open

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

mozilla/cbindgen#1060 · 1 reaction · Opened Mar 6, 2025
Complex number support Open

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

mozilla/cbindgen#1059 · 3 comments · Opened Mar 5, 2025
Extra semicolon with `define` Open

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

mozilla/cbindgen#1058 · 1 comment · Opened Mar 5, 2025
[Feature request] Add option for aliasing common Rust types for its C++ equivalents Open

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

mozilla/cbindgen#1057 · Opened Feb 28, 2025
Reliance on environment variables breaks hermetic builds Open

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

mozilla/cbindgen#1049 · 1 comment · Opened Jan 24, 2025
[Proposal] Integrate cbindgen right into rust and rustc? Open

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

mozilla/cbindgen#1047 · 1 comment · Opened Jan 18, 2025
[Feature Request] Add a config option to add dependencies for a specific struct / type Open

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

mozilla/cbindgen#1046 · Opened Jan 18, 2025
Erasing struct generics where there are no sized fields using them Open

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

mozilla/cbindgen#1045 · Opened Jan 18, 2025
Cython code generated for feature flagged logic deprecated by Cython compiler Open

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

mozilla/cbindgen#1044 · 1 reaction · Opened Jan 17, 2025
Tags `v0.28.0` and `0.28.0` both exist, pointing at different commits Open

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

mozilla/cbindgen#1043 · Opened Jan 15, 2025
Panic while building [surfer project](https://surfer-project.org/) bindings Open

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

mozilla/cbindgen#1039 · 2 comments · Opened Jan 12, 2025
How to generate headers for third party crate? Open

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

mozilla/cbindgen#1038 · 7 comments · Opened Jan 11, 2025
Optional function argument is not exported correctly Open

help wanted

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

mozilla/cbindgen#1037 · 1 comment · Opened Jan 7, 2025
Use `Result` with stable size, alignment, and ABI guarantees ? Open

enhancement help wanted

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

mozilla/cbindgen#1035 · 1 comment · 1 reaction · Opened Dec 30, 2024
C style comments are produced unescaped Open

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

mozilla/cbindgen#1033 · Opened Nov 25, 2024
[bug] cbindgen treats structs with array types in which there is `as` opaque Open

bug help wanted

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

mozilla/cbindgen#1031 · 2 comments · Opened Nov 17, 2024
Why does cbindgen transfer annotations from typedef to the underlying aliased type? Open

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

mozilla/cbindgen#1027 · 1 comment · Opened Nov 4, 2024
[Feature Request] Handle `if` + `cfg!` in const context Open

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

mozilla/cbindgen#1018 · 4 comments · 1 reaction · Opened Oct 27, 2024
[Feature Request] Const of unit type generate "empty" defines Open

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

mozilla/cbindgen#1017 · Opened Oct 24, 2024
[Feature Request] Please add a switch to indicate whether to generate function pointer declarations. Open

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

mozilla/cbindgen#1016 · Opened Oct 22, 2024
[Question] Why does parse.expand use an unstable flag to rustc? Open

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

mozilla/cbindgen#1015 · 6 comments · 2 reactions · Opened Oct 21, 2024
[Feature Request] Have cbindgen set a conditional compilation attribute when generating Open

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

mozilla/cbindgen#1014 · 2 comments · Opened Oct 21, 2024

mozilla/cbindgen

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