hsc2hs puts -F on call to ghc

[povman]

$ /usr/local/bin/hsc2hs --ld=/usr/local/bin/ghc --cflag=-package --cflag=base-3.0.1.0 --cflag=-package --cflag=bytestring-0.9.0.1 --lflag=-optl-lz -o dist/build/Codec/Compression/Zlib/Stream.hs Codec/Compression/Zlib/Stream.hsc
ghc-6.8.2: unrecognised flags: -F/Users/lukeworth/Library/Frameworks
Usage: For basic information, try the `--help' option.
compiling dist/build/Codec/Compression/Zlib/Stream_hsc_make.c failed
command was: ghc -c -package base-3.0.1.0 -package bytestring-0.9.0.1 -F/Users/lukeworth/Library/Frameworks dist/build/Codec/Compression/Zlib/Stream_hsc_make.c -o dist/build/Codec/Compression/Zlib/Stream_hsc_make.o

[duncan]

Note that there is no obvious workaround. hsc2hs invents this flag all on it's own and passes it direct to ghc which does not understand it.

It does it even without Cabal telling hsc2hs to use ghc as cc. ghc's version of hsc2hs does that anyway.

hsc2hs is almost certainly not the right place to be deciding whether or not to use the per-user frameworks by default. That should be done either by ghc or by Cabal.

[judah]

I cannot reproduce this behavior on OS X 10.5 (intel) with ghc-6.8.2.

I'm pretty sure that this problem only occurs with Christian Maeder's distribution of ghc-6.8.2, in which he modified hsc2hs to add the -F flag:  http://www.haskell.org/pipermail/glasgow-haskell-users/2007-December/013907.html

povman, can you confirm that your distribution of ghc was one of Christian's? This is probably the case if you have OS X 10.4; see http://www.haskell.org/ghc/download_ghc_682.html#macosxppc

Note that there was a discussion of handling framework paths in Cabal at the following ticket (hsc2hs is mentioned in the comments):  http://hackage.haskell.org/trac/hackage/ticket/189

[povman]

Indeed, I am using that distribution. Huh. I guess no-one's really inclined to update it either, seeing how 6.8.3 is out.

[maeder]

I think, that was an old bug in one of my Mac distributions. (Should have been fixed.)

[maeder]

Does using  http://www.informatik.uni-bremen.de/agbkb/forschung/formal_methods/CoFI/hets/mac/ghcs/hsc2hs-bin in <prefix>/lib/ghc-6.8.2/ solve your problem?

[povman]

I've actually made it work by reverting to GHC 6.8.1, so I can't even test your fix - sorry. If I ever get 6.8.3 installed I'll check if it works there too.

[ross]

As Christian has said, this was never in the mainline.