# Install cpu_features with Homebrew, apt, Nix Cross platform C99 library to get cpu features at runtime. Version 0.11.0 via Homebrew; verified 2026-06-01. ## Install ```sh sudo av install brew:cpu_features ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install cpu_features ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install libcpu-features-dev ``` Evidence: Debian stable package indexes: libcpu-features-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - Nix (92%): ```sh nix profile install nixpkgs#cpu_features ``` Evidence: nixpkgs package indexes: pkgs/by-name/cp/cpu_features/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:cpu_features - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.11.0 - **Source summary:** Cross platform C99 library to get cpu features at runtime - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** Apache-2.0 - **Source archive:** - **Last updated:** 2026-06-01T17:25:20Z - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - list_cpu_features (cli) - list_cpu_features (alias) ## Build dependencies - cmake ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.11.0 - Package-manager updated: 2026-06-01 - Local data: ok - Upstream repository: https://github.com/google/cpu_features - Upstream latest detected: v0.11.0 (current) ## Project history and usage cpu_features is Google's portable C99 library for detecting CPU instruction-set and microarchitecture features at runtime. ### Project history The official repository was created in 2018. Its README emphasizes portability, old-compiler compatibility, sandbox-aware detection strategies, thread safety, no allocation, no exceptions, unit tests, and suitability for low-level code such as libc-style routines. ### Adoption history The README positions cpu_features as cross-platform infrastructure across Linux, macOS, Windows, Android, and several CPU families. It also describes Android support and an NDK cpu-features.h compatibility layer, making it relevant to projects that need runtime dispatch without depending on platform-specific probes. ### How it is used Users include architecture-specific headers such as cpuinfo_x86.h or cpuinfo_arm.h, read feature structures returned by GetX86Info or GetArmInfo, and select optimized code paths based on runtime CPU support. The package also builds list_cpu_features for inspecting detected features, including JSON output. ### Why package nerds care For packagers, cpu_features is a small but foundational library: it helps upstreams choose optimized code paths while still shipping generic binaries, and it is designed to build with CMake, Bazel, and Zig across many architectures. ### Timeline - 2018: The google/cpu_features repository was created. - 2025: v0.10.x releases were published from the official GitHub repository. - 2026: v0.11.0 was published from the official GitHub repository. ### Related projects - The README describes cpu_features as an Android NDK cpu-features.h drop-in replacement. ### Sources - - - - ## Security Notes generalized runtime or code generation signal. - **Geiger risk:** yellow / medium - generalized runtime or code generation signal ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** cpu_features - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Debian apt - libcpu-features-dev - 0.9.0-1+b1: normalized package name match | Debian stable package indexes: libcpu-features-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | cross platform C99 library to get cpu features | https://github.com/google/cpu_features - Nix - cpu_features: normalized package name match | nixpkgs package indexes: pkgs/by-name/cp/cpu_features/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - libcpu-features-dev - 0.9.0-1: normalized package name match | Ubuntu 24.04 LTS package indexes: libcpu-features-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | cross platform C99 library to get cpu features | https://github.com/google/cpu_features ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Secret-risk packages](https://www.automicvault.com/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Language runtime packages](https://www.automicvault.com/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata. - [cmake](https://www.automicvault.com/pkg/brew/cmake/) - Build dependency declared by Homebrew. - [volk](https://www.automicvault.com/pkg/brew/volk/) - Popular package that depends on this formula. - [cpuid](https://www.automicvault.com/pkg/brew/cpuid/) - Shares av.db curated category or tags: cli, cpu, cpu-features, hardware-detection, library. - [augeas](https://www.automicvault.com/pkg/brew/augeas/) - Shares av.db curated category or tags: cli, library, system. - [cahute](https://www.automicvault.com/pkg/brew/cahute/) - Shares av.db curated category or tags: cli, library, system. - [chmlib](https://www.automicvault.com/pkg/brew/chmlib/) - Shares av.db curated category or tags: cli, library, system. - [cpufetch](https://www.automicvault.com/pkg/brew/cpufetch/) - Shares av.db curated category or tags: cli, cpu, system. - [cpulimit](https://www.automicvault.com/pkg/brew/cpulimit/) - Shares av.db curated category or tags: cli, cpu, system. - [dbus-glib](https://www.automicvault.com/pkg/brew/dbus-glib/) - Shares av.db curated category or tags: cli, library, system. - [hivex](https://www.automicvault.com/pkg/brew/hivex/) - Shares av.db curated category or tags: cli, library, system. - [libcpuid](https://www.automicvault.com/pkg/brew/libcpuid/) - Local package facts share a topical domain. Shared terms: cli, cpu, detection, hardware, library. ## Combined YAML source View the package source record on GitHub. [combined/cpu_features.yml](https://github.com/automic-vault/db/blob/main/combined/cpu_features.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph