I have just downloaded a darcs snapshot, pulled patches and followed the instructions at http://hackage.haskell.org/trac/ghc/wiki/Building/QuickStart When I got to do make it didn't work. The tail of the output looks like this: [55 of 55] Compiling Main ( cabal-bin.hs, /home/colin/ghc/libraries/bootstrapping/Main.o ) Linking cabal-bin ... echo "[]" > bootstrapping.conf.tmp cd extensible-exceptions && /home/colin/ghc/libraries/cabal-bin ghc --make -fno-warn-unrecognised-pragmas /home/colin/ghc/libraries/bootstrapping.conf 1.7.0 clean --distpref=dist-bootstrapping unrecognised command: /home/colin/ghc/libraries/bootstrapping.conf (try --help) make[1]: [bootstrapping.conf] Error 1 (ignored) cd extensible-exceptions && /home/colin/ghc/libraries/cabal-bin ghc --make -fno-warn-unrecognised-pragmas /home/colin/ghc/libraries/bootstrapping.conf 1.7.0 configure --distpref=dist-bootstrapping --with-compiler=ghc --make -fno-warn-unrecognised-pragmas --with-hc-pkg=/usr/local/bin/ghc-pkg --package-db=/home/colin/ghc/libraries/bootstrapping.conf.tmp unrecognised command: /home/colin/ghc/libraries/bootstrapping.conf (try --help) make[1]: *** [bootstrapping.conf] Error 1 make[1]: Leaving directory `/home/colin/ghc/libraries' make: *** [stage1] Error 2 I then tried the following: [colin@susannah ghc]$ ls libraries/bootstrapping.conf ls: cannot access libraries/bootstrapping.conf: No such file or directory [colin@susannah ghc]$ ls libraries/bootstrapping.conf.tmp libraries/bootstrapping.conf.tmp It looks to me like all I have to do is to rename libraries/bootstrapping.conf.tmp to libraries/bootstrapping.conf but I don't see why this is happening. -- Colin Adams Preston Lancashire