Frederik Eaton
Is there a way to use Hat with GHC, without 'hmake'?
You could transform each module in your project individually with hat-trans, before running ghc --make over the traced version. Unfortunately, this means you will need to find some other way to do the dependency analysis to ensure that modules are transformed in the right order. It is a known deficiency of the ghc --make implementation that it cannot handle pre-processors nicely - this applies equally to Happy, Alex, generic Haskell, etc. One way would be to write a Makefile, with rules something like $(patsubst %.hs, Hat/%.hs, ${SRCS}) : Hat/%.hs : %.hs hat-trans $< $(patsubst %.hs, Hat/%.o, ${SRCS}) : Hat/$.o : Hat/%.hs ghc -c -package hat $< and then use ghc -M to generate the dependencies somehow.
$ which ghc /home/frederik/.toast-i386/armed/bin/ghc $ hmake -hat pointtracker.hs
Fail: Can't find module Graphics.X11.Xlib in user directories . Or in installed libraries/packages at /usr/lib/ghc-6.2.2/imports Asked for by: pointtracker.hs Fix using the -I, -P, or -package flags.
Well, since ghc-6.2.2 doesn't ship with the X11 library package enabled, this is hardly surprising. However, even it it were supplied, you /might/ also need to ask for it explicitly with -package X11 on the command-line.
i.e., I'm not sure how 'hmake' found /usr/lib/ghc-6.2.2, but this directory is not mentioned in my environment, and it was not my intention to use this version of ghc.
You can select which version of ghc is used by hmake, either on the command-line, or by setting a default with hmake-config. e.g. hmake -hc=/home/frederik/.toast-i386/armed/bin/ghc ... or hmake-config list hmake-config add /home/frederik/.toast-i386/armed/bin/ghc hmake-config default /home/frederik/.toast-i386/armed/bin/ghc Regards, Malcolm