ObjFW is known to work on the following platforms, but should run on
many others as well:

 +--------------------------+--------------+----------------------+
 | OS                       | Architecture | Compiler             |
 +--------------------------+--------------+----------------------+
 | FreeBSD 8.0              | x86          |                      |
 +--------------------------+--------------+----------------------+
 | Linux 2.6.*              | x86          | gcc 4.4.1            |
 | Linux 2.6.*              | x86          | llvm/clang r83252    |
 | Linux 2.6.               | x86_64       | gcc 4.4.1            |
 +--------------------------+--------------+----------------------+
 | iPhone OS 2.2.1 - 3.1.2  | arm          | gcc 4.2              |
 | Mac OS X 10.5            | ppc          | gcc 4.0 + 4.2        |
 | Mac OS X 10.5            | ppc64        | gcc 4.0 + 4.2        |
 | Mac OS X 10.5 - 10.6     | x86          | gcc 4.0 + 4.2        |
 | Mac OS X 10.5 - 10.6     | x86_64       | gcc 4.0 + 4.2        |
 +--------------------------+--------------+----------------------+
 | MirBSD 10uAB             | x86          | gcc 4.4.2            |
 +--------------------------+--------------+----------------------+
 | NetBSD 4.0               | x86          | gcc 4.1.2 prerelease |
 +--------------------------+--------------+----------------------+
 | OpenBSD 4.6              | x86_64       | gcc 4.2.4            |
 +--------------------------+--------------+----------------------+
 | OpenSolaris 2009.06      | x86          |                      |
 | OpenSolaris 2009.06      | x86_64       |                      |
 +--------------------------+--------------+----------------------+
 | Windows XP - 7 / cygwin  | x86          |                      |
 | Windows XP - 7 / mingw32 | x86          |                      |
 +--------------------------+--------------+----------------------+

Basically, it should run on any POSIX system to which gcc4 or a recent
clang version has been ported. If not, please send an e-mail with a bug
report.
