Hello friends; I have great interest and need for using Haskell with the iPhone. Here I am with JHC, looking to compile, the tarballs seem out of date for GHC 6.12.x but here is a message right after the website instructions of ./autoreconf -i , then ./configure, then make : happy -a -g -c src/FrontEnd/HsParser.y -o src/FrontEnd/HsParser.hs unused rules: 2 shift/reduce conflicts: 73 reduce/reduce conflicts: 23 sed -e 's/^{-# OPTIONS[A-Z_]*/{-# OPTIONS_GHC -w /' -i src/FrontEnd/HsParser.hs sed: -i may not be used with stdin make: *** [src/FrontEnd/HsParser.hs] Error 1 make: *** Deleting file `src/FrontEnd/HsParser.hs' I had looked in the sources a bit to see where 'sed' is called and what other way the -i option is to be used. System is Mac 10.6 I am thinking the -i could be turned into a '<' , but i cannot find where in the source very well. Thanks! -humasect