# 使用 Homebrew, apt, dnf, Nix 安装 flang

查看 flang 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

## 安装

```sh
sudo av install brew:flang
```

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install flang
```

  证据: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install flang
```

  证据: Debian stable package indexes: flang from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install flang
```

  证据: Fedora Rawhide package metadata: flang from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#flang
```

  证据: nixpkgs package indexes: flang from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix

## 软件包事实

- **软件包键:** brew:flang
- **软件包管理器:** Homebrew
- **版本:** 22.1.8
- **来源摘要:** LLVM Fortran Frontend
- **主页:** <https://flang.llvm.org/>
- **仓库:** <https://github.com/llvm/llvm-project>
- **最后更新:** 2026-06-21T01:50:33Z
- **已生成:** 2026-08-03T19:37:03+00:00

## 可执行文件

- bbc (别名)
- f18-parse-demo (别名)
- fir-lsp-server (别名)
- fir-opt (别名)
- flang (别名)
- flang-22 (别名)
- flang-new (别名)
- tco (别名)

## 安装行为

- Bottle: 不可用

## 版本和新鲜度

- 页面生成时间: 2026-08-03
- 管理器版本: 22.1.8
## 项目历史与用法

Flang is LLVM's Fortran frontend. The official documentation distinguishes LLVM Flang from Classic Flang, describes it as a separate and independent Fortran compiler, and notes that LLVM Flang is under active development.

### 项目历史

LLVM Flang lives in the monorepo under `llvm-project/flang` and is documented by the Flang team. The documentation copyright spans 2017-2026 and the current docs describe an actively developed frontend that can generate executables for a number of examples while some functionality remains missing.

The compiler architecture is documented around analysis, lowering, and object-code generation/linking. Analysis creates a decorated parse tree and symbol table, lowering converts that information into FIR, a Fortran dialect of MLIR, and later passes produce LLVM IR for the existing LLVM code-generation pipeline.

### 采用历史

Flang's adoption is tied to the LLVM toolchain rather than a standalone language ecosystem. It gives LLVM distributions, package managers, and compiler users a Fortran frontend that participates in LLVM's common infrastructure.

The official docs' distinction between LLVM Flang and Classic Flang matters for users and packagers because the name has referred to more than one Fortran compiler lineage.

### 使用方式

Users invoke `flang` as a compiler driver for Fortran source. The docs also show developer-oriented `-fc1` and `-mmlir` commands for dumping preprocessing output, parse trees, symbol tables, FIR, MLIR pass output, and LLVM IR.

No user credentials or persistent configuration file are documented in the supplied curation or the official Flang docs.

### 为什么软件包爱好者会关心

Flang is significant because it brings Fortran into the LLVM package universe, making Fortran compilation part of the same modular compiler stack used by Clang and other LLVM frontends.

For compiler-package curators, the key nerd detail is FIR: a Fortran-specific IR layered on MLIR before conversion to LLVM IR, exposing more of the compiler pipeline than a black-box Fortran driver.

### 时间线

- 2017: Flang documentation copyright begins in the official docs.
- 2020s: LLVM Flang is documented as separate from Classic Flang and under active development.
- 2026: Current docs include Flang 23 in-progress release notes and updated compiler-phase documentation.

### Related projects

- Classic Flang is the separate historical compiler explicitly distinguished by the docs.
- LLVM provides the broader compiler infrastructure and monorepo.
- MLIR and FIR are central to Flang lowering before LLVM IR generation.

### 来源

- <https://flang.llvm.org/docs>
- <https://flang.llvm.org/docs/Overview.html>
- <https://github.com/llvm/llvm-project>


## 安全说明

没有找到 flang 的匹配本地密钥处理 manifest。Nucleus 软件包元数据仍在此发布，以便未来覆盖拥有稳定的软件包 URL。


## 其他软件包管理器记录

- Debian apt - flang - 1:19.0-63: normalized package name match | Debian stable package indexes: flang from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Fortran compiler
- Nix - flang: normalized package name match | nixpkgs package indexes: flang from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix
- Ubuntu apt - flang - 1:18.0-59~exp2: normalized package name match | Ubuntu 24.04 LTS package indexes: flang from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Fortran compiler
- dnf - flang - 22.1.8-20.fc45: normalized package name match | Fedora Rawhide package metadata: flang from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | a Fortran language front-end designed for integration with LLVM | https://flang.llvm.org
- Nix - flang_22: installed executable or alias match | nixpkgs package indexes: flang_22 from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix


## Combined YAML source

View the package source record on GitHub. [combined/flang.yml](https://github.com/mxcl/pkgdb/blob/main/combined/flang.yml)


## 来源

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph