Re: ANN: C->Haskell 0.8.1

qrczak@knm.org.pl (Marcin 'Qrczak' Kowalczyk) wrote,

Sun, 11 Feb 2001 23:20:07 +1100, Manuel M. T. Chakravarty pisze:

...

I am pleased to announce the availability of version 0.8.1 of the interface generator C->Haskell.

Wow!

A problem: c2hs/gen/CInfo.lhs imports class Storable from module C2HSConfig, which does not export it.

Also, the compilation fails (on ghc-4.11): /usr/local/bin/ghc -c -syslib lang -syslib posix -O -recomp -fno-warn-incomplete-patterns -i. -fglasgow-exts C2HSMarsh.hs

C2HSMarsh.hs:43: Bad interface file: ./Ptr.hi does not exist

and similarly for other files. This is because there exists Ptr.hs in this directory - but it should not be taken from there, because the right version is in ghc's own libraries.

This is very strange, because I have tested this and it worked for me. In fact, if you look at the Makefile in the c2hs/lib/ directory, then you will see that the `depend' target moves these troublesome files into a subdirectory before compilation (called ghc411hackdir). Is it possible that you used the same build tree to compile with 4.08 first and then re-compile with 4.11? This won't work, because of the hack mentioned above. In fact, I think, this is a bug in ghc 4.11 - I have filled it as bug #131631 in the bug tracker. Cheers, Manuel