why doesn't Hat work with GHC 6.2? Looking for ghc... found 6.2 WARNING: hat-2.02 needs a version of ghc >= 5.04.
The confhc-hat script calculates the version number, which is 62 for ghc 6.2 and compares this to the version number of ghc 5.04, which is 504. Obviously, 62 is less than 504.
Yes, that is the reason why the configure script fails, and Olli's patch will get you past this stage. However, with the hat-2.02 distribution you will encounter many more small incompatibilities with ghc-6.2, which may prevent you from building successfully. Various packagers (e.g. debian) have already worked around all of these minor problems for ghc-6.2, and indeed the CVS repository also contains these necessary fixes. We hope to release a new version, hat-2.04, in the near future to address the issue, but of course there are various other enhancements we would like to add too, and polishing those takes time. In the meantime, I suggest you take one of the following courses of action: * downgrade ghc to 5.04.3 * or use a pre-packaged distribution for ghc-6.2 (e.g. debian) * or build from the anonymous CVS archive at cvs.haskell.org Regards, Malcolm