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llvm-sys

v221.0.0 Stable

Bindings to LLVM's C API

MIT Edition 2021 MSRV 1.65.0
External FFI bindings #bindings#llvm

Quick Verdict

  • โœ“Actively maintained (updated 31d ago)
  • โœ“Stable API (221.x for 10+ years)
  • โœ“Massive adoption (1.4K crates depend on it)
  • โœ“Permissive license (MIT)

Security

Checking security advisories...
Downloads
3.8M
Dependents
1.4K
Releases
196
Size
64KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

265.9K downloads in the last 30 days (8.9K/day), up 51% from the previous period.

๐Ÿ”—
Widely adopted

1.4K crates depend on llvm-sys. Strong ecosystem adoption means battle-tested code and long-term stability.

โš ๏ธ
Single maintainer risk

llvm-sys has only 1 owner despite 1.4K dependents. This is a bus-factor concern โ€” consider the implications for long-term support.

โœ…
Stable for 10+ years

The API has been stable (1.x) for over 10 years with 196 releases. This level of maturity means you can depend on it without worrying about breaking changes.

๐ŸŒŸ
Used by top crates

Notable dependents include inkwell, cairo-native, bpf-linker, aya-rustc-llvm-proxy, llvm-lib. When high-quality crates choose llvm-sys, it's a strong quality signal.

Health Breakdown

Maintenance 17/25

Recency, release consistency, active ratio

Quality 20/25

Yanked ratio, deps, size, maturity, features

Community 13/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 12/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
7K/day avg+52%
010K20K30K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v191.0.0
38%
v140.1.3
19%
v180.0.0
16%
v211.0.0
16%
v120.2.1
11%

Release Timeline

196 releases3 yankedsince 2015
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A
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N
D
2015
4
2016
3
2017
33
2018
32
2019
15
2020
20
2021
10
2022
23
2023
30
2024
16
2025
8
2026
2
Less
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Yanked

Feature Flags

force-staticforce-dynamicprefer-staticprefer-dynamicno-llvm-linkingstrict-versioningdisable-alltargets-init

README

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Maintainers

Dependencies
8
direct dependencies
Dependents
1.4K
crates depend on llvm-sys

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