The build fails with ghc-5.02.1 on a freebsd 4.4-stable machine: [..] gmake[2]: Entering directory `/var/tmp/src/nhc98-1.10/src/prelude/LowB' /var/tmp/src/nhc98-1.10/script/nhc98 -cpp -p -c +CTS -part -redefine -CTS -P.. -P../PreludeIO -P../IO -prelude -o /var/tmp/src/nhc98-1.10/targets/ix86-FreeBSD/objp/prelude/LowB/PrimOpenSocket.p.o PrimOpenSocket.hs Fail: GcodeFix.hs:165: Non-exhaustive patterns in function nthcon gmake[2]: *** [/var/tmp/src/nhc98-1.10/targets/ix86-FreeBSD/objp/prelude/LowB/PrimOpenSocket.p.o] Error 1 gmake[2]: Leaving directory `/var/tmp/src/nhc98-1.10/src/prelude/LowB' gmake[1]: *** [LowB.make] Error 2 gmake[1]: Leaving directory `/var/tmp/src/nhc98-1.10/src/prelude' gmake: *** [targets/ix86-FreeBSD/profprelude] Error 2 Any hints would be appreciated... Marko