The following table describes to what extent GHC currently supports various platforms. To find out who is responsible for each platform, see GHC Code Owners.

For information about what distributions GHC is part of, see the distribution packages page.

Tier 1 platforms

Tier 1 platforms are our top priority. We only release GHC when they all work. Although there are not many Tier 1 platforms, they cover a very large fraction of our users.

Criteria for Tier 1 platforms:

  • An active buildbot client, capable of doing full builds and uploading distributions.
  • An active sponsor, willing to investigate and fix platform-specific bugs, and to work with us during the release process
Architecture OS Build name GHCi NCG Dyn libs Sponsor WikiPage
x86 Windows (MinGW) i386-unknown-mingw32 Yes Yes Yes(*W) GHC HQ Platforms/Windows
x86-64 Windows (MinGW) x86_64-unknown-mingw32 Yes Yes Yes(*W) GHC HQ Platforms/Windows
x86 Linux i386-unknown-linux Yes Yes Yes GHC HQ
x86-64 Linux x86_64-unknown-linux Yes Yes Yes GHC HQ
x86-64 MacOS X x86_64-apple-darwin Yes Yes Yes GHC HQ Building/Preparation/MacOSX

*W Windows DLL support currently quite limited due to platform limitations (see #5987)

Tier 2 platforms

Tier 2 platforms work (to varying degrees), but we rely on community support for developing, testing, and building distributions. We may release GHC with some Tier 2 platforms not working.

Platform-specific bugs on Tier 2 platforms are marked "low priority" (unless there's a strong reason not to do so), not because they are unimportant to the users of that platform, but to express the fact that they aren't going to hold up the release.

We'd like to promote as many Tier 2 platforms as possible to Tier 1, as soon as they meet the Tier 1 criteria.

Architecture OS Build name GHCi NCG Dyn libs WikiPage
x86 FreeBSD i386-portbld-freebsd Yes Yes Yes FreeBSDGhc
x86-64 FreeBSD amd64-portbld-freebsd Yes Yes Yes FreeBSDGhc
x86 OpenBSD i386-unknown-openbsd Yes Yes No
x86 Solaris i386-unknown-solaris2 Yes Yes Yes (*S4)
x86-64 OpenBSD amd64-unknown-openbsd Yes Yes No Preparing and Building OpenBSD
x86-64 DragonFly x86_64-portbld-dragonfly Yes Yes Yes
PowerPC Linux powerpc-unknown-linux Yes Yes Yes
PowerPC64 Linux powerpc64-unknown-linux Yes Yes Yes
PowerPC64le Linux powerpc64le-unknown-linux Yes Yes Yes
Sparc Linux sparc-unknown-linux Yes Yes No
IA-64 Linux ia64-unknown-linux Yes No No Building/IA64Linux
Alpha Linux alpha-unknown-linux Yes No No
HPPA Linux hppa-unknown-linux ? No ?
S/390 Linux s390-ibm-linux ? No ?
m68k Linux m68k-unknown-linux ? No ?
mips Linux mips-unknown-linux ? No ?
mipsel Linux mipsel-unknown-linux ? No ?
ARM Linux arm-unknown-linux Yes No Yes
ARM Debian armel arm-linux-gnueabi ? No ? Building/ARMLinuxGnuEABI
ARM iOS arm-apple-darwin10 No Yes No Building/CrossCompiling/iOS
PowerPC AIX powerpc-ibm-aix No Yes No Building/AIX
x86 MacOS X i386-apple-darwin Yes Yes No Attic/X86OSXGhc

*S4 shared libraries are supported on Solaris 11 version 11/11 and higher

In most cases, binaries for the Tier 2 platforms can be downloaded from the Distribution Packages page, e.g. you can get binaries for most of the Linux platforms from Debian. In some cases, for example the Solaris platforms, you'll need to go to the download page of a particular release to get a bindist.

Tier 3 platforms

Tier 3 platforms worked in the past, but probably do not work now.

Architecture OS Build name GHCi NCG Dyn libs WikiPage
Mips64 Irix mips-sgi-irix ? No ?
x86 Windows (Cygwin) i386-unknown-cygwin32 No Yes No(?)
Alpha Dec OSF alpha-dec-osf3 No No No
ARM Maemo (Linux) arm-unknown-linux-gnu No No No ArmLinuxGhc
x86 NetBSD i386-unknown-netbsd Yes Yes No
x86-64 NetBSD amd64-unknown-netbsd Yes Yes No
Sparc Solaris sparc-sun-solaris2 Yes Yes No Building/Solaris



The interactive environment, including dynamic linking of object code and dynamic generation of FFI calls.


Native code generator: GHC can generate assembly code directly for this platform, bypassing gcc.

Dynamic libraries

Support for generating dynamically-linked sharable libraries from Haskell code.

Last modified 12 months ago Last modified on Jan 2, 2019 10:24:59 AM