[arch-haskell] Codec-Image-DevIL, Arch Linux,
magnus at therning.org
Sat Mar 27 07:54:50 EDT 2010
On 26/03/10 20:37, Gregory D. Weber wrote:
> B. Whether to fix Cabal?
> But why is Cabal spuriously reporting the absence of libIL?
> It is an error, isn't it?
> I have the impression, formed from browsing around on
> http://hackage.haskell.org/trac/hackage/, that in the
> configuration step, when Cabal sees the line
> Extra-Libraries: IL
> it writes a small C program that tries to include that library,
> and reports the library is missing if there's an error
> in compiling it. Maybe Cabal needs to interpret the
> C compiler's error messages more carefully.
Based on your own experiment it looks like Cabal is correct. Linking with
*only* IL fails! The error is in the .cabal file, as you yourself point out
mentioning only IL isn't enough (on Arch).
I would agree that Cabal's error message isn't as descriptive as it could be.
: It may work on other platforms/distros. It would be possible to decide
which of pthread/rt to use when IL is compiled, and in that case it would be
enough to use just -lIL.
Magnus Therning (OpenPGP: 0xAB4DFBA4)
magnus＠therning．org Jabber: magnus＠therning．org
http://therning.org/magnus identi.ca|twitter: magthe
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