[Not subscribed to haskell-users so please copy me the answers.] To compile the revision control system Darcs (http://www.darcs.net/), I need Haskell but I'm not myself a Haskell user. My machine is an UltraSparc 10 running NetBSD 1.6.2 userland and 2.0 kernel. There is a package source for Glasgow Haskell, so, let's try in /usr/pkgsrc: % make ... checking build system type... sparc64-unknown-netbsd2.0. checking host system type... sparc64--netbsd checking target system type... sparc64--netbsd Unrecognised platform: sparc64--netbsd gmake: Entering directory `/usr/pkgsrc/lang/ghc/work/ghc-6.2.1/glafp-utils' ../mk/boilerplate.mk:66: ../mk/config.mk: No such file or directory You haven't run ./../configure yet. gmake: *** [../mk/config.mk] Error 1 'Unrecognised platform'? But http://www.haskell.org/ghc/docs/latest/html/building/sec-port-info.html says: sparc-unknown-openbsd Supported, including native-code generator. The same should also be true of NetBSD So, what can I try now?