macOS
Homebrewverified · 100%
brew install ghc@9.12local Homebrew formula metadata
MacPortsverified · 94%
sudo port install ghcMacPorts ports tree · lang/ghc/Portfile · source: api.github.com
brew
Install ghc@9.12 with Homebrew, dnf, apk, chocolatey, apt, MacPorts, Nix, pacman, zypper
Glorious Glasgow Haskell Compilation System. Version 9.12.3 via Homebrew; verified 2026-06-25.
install
Additional install commands
Linux
Fedora dnfverified · 92%
sudo dnf install ghc9.12Fedora Rawhide package metadata · ghc9.12 · source: dl.fedoraproject.org
Alpine Linux apkverified · 92%
sudo apk add ghcAlpine Linux edge package indexes · ghc · source: dl-cdn.alpinelinux.org
Debian aptverified · 92%
sudo apt install ghcDebian stable package indexes · ghc · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#ghcnixpkgs package indexes · ghc · source: raw.githubusercontent.com
Arch Linux pacmanverified · 92%
sudo pacman -S ghcArch Linux sync databases · ghc · source: geo.mirror.pkgbuild.com
openSUSE zypperverified · 92%
sudo zypper install ghcopenSUSE Tumbleweed package metadata · ghc · source: download.opensuse.org
Windows
Chocolateyverified · 92%
choco install ghcChocolatey community package catalog · ghc · source: community.chocolatey.org
overview
Package summary
Glorious Glasgow Haskell Compilation System
Project links
Commands and aliases
- ghc-9.12.3
- ghc-pkg-9.12.3
- ghci-9.12.3
- haddock-ghc-9.12.3
- hp2ps-ghc-9.12.3
- hpc-ghc-9.12.3
- hsc2hs-ghc-9.12.3
- runghc-9.12.3
- runhaskell-9.12.3
history
Project history and usage
The Homebrew `ghc@9.12` formula packages the GHC 9.12 branch of the Glasgow Haskell Compiler. It gives users a branch-specific compiler and interpreter set while preserving the same project lineage as the broader GHC package.
Project history
GHC began at the University of Glasgow near the beginning of the 1990s as an academic research project funded by the UK government. The project grew from a research compiler into a maintained open-source compiler, interactive environment, library set, and runtime system for Haskell.
The GHC 9.12 branch follows GHC's stable-release convention, where even-numbered minor branches receive patchlevel releases. The user guide warns that even patchlevel upgrades can require recompiling code built against earlier libraries, which is one reason branch-specific packaging is useful.
Adoption history
GHC's adoption is tied to its role as the main compiler used by Haskell projects, package repositories, editor tooling, and build systems. The official site names Hackage libraries, Haskell Language Server, Cabal, Stack, and GHCup as part of the surrounding toolchain.
Homebrew exposes `ghc@9.12` as a separate formula with 9.12-suffixed executables. That formula role is especially useful for build matrices and projects that test a package against a newer stable branch without forcing the unversioned `ghc` formula path.
How it is used
A practitioner installs `ghc@9.12` when a project, package bound, or CI job targets GHC 9.12. The package supplies compiler, REPL, package-database, script runner, profiling, and Haddock commands with versioned executable names available for precise invocation.
The underlying GHC workflow is unchanged: use `ghc` for batch compilation, `ghci` for interactive exploration, and build tools such as Cabal or Stack to coordinate flags, dependencies, and package databases.
Why package nerds care
The formula is packaging glue around a compiler branch whose boot libraries and ABI shape downstream package compatibility. Package maintainers care because supporting a GHC branch often means testing bounds, generated docs, warnings, and extension behavior across that branch.
Timeline
- Early 1990s: GHC began as a Glasgow research project.
- 2007: The user guide documented GHC's even-numbered stable-branch versioning policy starting with GHC 6.8.
- 2024: GHC 9.12.1 was released as the first listed 9.12 release on the GHC download page.
- 2026 batch input: The Homebrew package record listed 9.12.3-suffixed executables.
Related projects
- Cabal and Stack commonly select and invoke GHC for project builds.
- Hackage package metadata and compiler bounds make versioned GHC installations valuable.
- GHCup is the official Haskell installer for choosing GHC and related tools.
Sources
security posture
No protected-tool coverage found yet
No matching local secret-handling manifest was found for ghc@9.12. Nucleus package metadata is still published here so future coverage has a stable package URL.
Install behavior
- Homebrew declares a post-install hook for this formula.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 1 runtime dependencies.
- Build metadata lists 5 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
ghc-9.12.3 | cli | global executable | |
ghc-pkg-9.12.3 | cli | global executable | |
ghci-9.12.3 | cli | global executable | |
haddock-ghc-9.12.3 | cli | global executable | |
hp2ps-ghc-9.12.3 | cli | global executable | |
hpc-ghc-9.12.3 | cli | global executable | |
hsc2hs-ghc-9.12.3 | cli | global executable | |
runghc-9.12.3 | cli | global executable | |
runhaskell-9.12.3 | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version9.12.3
manager updated2026-06-25
local dataok
upstreamnot checked
latest detectednot detected
- infoRelease/tag comparison is only available for GitHub repositories.https://haskell.org/ghc/none confidence
install metadata
Package metadata
| Package key | brew:ghc@9.12 |
|---|---|
| Version | 9.12.3 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/ghc@9.12 |
| Homepage | https://haskell.org/ghc/ |
| Repository | https://gitlab.haskell.org/ghc/ghc |
| Upstream docs | https://downloads.haskell.org/ghc/9.12.3/docs/users_guide |
| License | BSD-3-Clause |
| Source archive | https://downloads.haskell.org/~ghc/9.12.3/ghc-9.12.3-src.tar.xz |
| Last updated | 2026-06-25T13:37:42+02:00 |
| Pulse | updated |
| Dependencies | gmp |
| Build dependencies | autoconf, automake, python@3.14, sphinx-doc, xz |
| Uses from macOS | libffi, ncurses |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | ghc@9.12 |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | yes |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
dnf92%
ghc9.12 9.12.4-17.fc45
Glasgow Haskell Compiler
sudo dnf install ghc9.12- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: x86_64
- Source Package: ghc9.12
- 8 dependencies
- 1 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal 3.14.2.0-17.fc45
Haskell Cabal library
https://hackage.haskell.org/package/Cabal
sudo dnf install ghc9.12-Cabal- License: BSD-3-Clause
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 30 dependencies
- 2 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-devel 3.14.2.0-17.fc45
Haskell Cabal library development files
sudo dnf install ghc9.12-Cabal-devel- License: BSD-3-Clause
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 3 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-doc 3.14.2.0-17.fc45
Haskell Cabal library documentation
sudo dnf install ghc9.12-Cabal-doc- License: BSD-3-Clause
- Category: Unspecified
- Architecture: noarch
- Source Package: ghc9.12
- 1 dependencies
- 1 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-prof 3.14.2.0-17.fc45
Haskell Cabal profiling library
sudo dnf install ghc9.12-Cabal-prof- License: BSD-3-Clause
- Category: Unspecified
- Architecture: x86_64
- Source Package: ghc9.12
- 32 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-syntax 3.14.2.0-17.fc45
Haskell Cabal-syntax library
https://hackage.haskell.org/package/Cabal-syntax
sudo dnf install ghc9.12-Cabal-syntax- License: BSD-3-Clause
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 28 dependencies
- 2 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-syntax-devel 3.14.2.0-17.fc45
Haskell Cabal-syntax library development files
sudo dnf install ghc9.12-Cabal-syntax-devel- License: BSD-3-Clause
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 3 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-syntax-doc 3.14.2.0-17.fc45
Haskell Cabal-syntax library documentation
sudo dnf install ghc9.12-Cabal-syntax-doc- License: BSD-3-Clause
- Category: Unspecified
- Architecture: noarch
- Source Package: ghc9.12
- 1 dependencies
- 1 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-Cabal-syntax-prof 3.14.2.0-17.fc45
Haskell Cabal-syntax profiling library
sudo dnf install ghc9.12-Cabal-syntax-prof- License: BSD-3-Clause
- Category: Unspecified
- Architecture: x86_64
- Source Package: ghc9.12
- 30 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-array 0.5.8.0-17.fc45
Haskell array library
https://hackage.haskell.org/package/array
sudo dnf install ghc9.12-array- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 8 dependencies
- 2 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-array-devel 0.5.8.0-17.fc45
Haskell array library development files
sudo dnf install ghc9.12-array-devel- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 3 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-array-doc 0.5.8.0-17.fc45
Haskell array library documentation
sudo dnf install ghc9.12-array-doc- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: noarch
- Source Package: ghc9.12
- 1 dependencies
- 1 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-array-prof 0.5.8.0-17.fc45
Haskell array profiling library
sudo dnf install ghc9.12-array-prof- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: x86_64
- Source Package: ghc9.12
- 10 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-base 4.21.2.0-17.fc45
Haskell base library
https://hackage.haskell.org/package/base
sudo dnf install ghc9.12-base- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 8 dependencies
- 13 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-base-devel 4.21.2.0-17.fc45
Haskell base library development files
sudo dnf install ghc9.12-base-devel- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: i686
- Source Package: ghc9.12
- 6 dependencies
- 3 provides
- package manager index match
- Matched by: Ghc9 12
dnf92%
ghc9.12-base-doc 4.21.2.0-17.fc45
Haskell base library documentation
sudo dnf install ghc9.12-base-doc- License: BSD-3-Clause AND HaskellReport
- Category: Unspecified
- Architecture: noarch
- Source Package: ghc9.12
- 1 dependencies
- 1 provides
- package manager index match
- Matched by: Ghc9 12
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Nucleus package database
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment