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| Update: The following problem is solved by renaming charm.hs to hscharm.hs, so that the corresponding charm.o doesn't override the charm.o produced during compilation of charm.c.
| | How does one interface with a C enum? |
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| ncurses is proving too difficult to setup, so I'm working on a new library called charm. The C code works by itself, but I can't compile a Haskell wrapper for it. While the tutorials at HaskellWiki are helpful, they're outdated. Argh! The docs say that -#include pragmas no longer work, but fail to explain how to load code without them. Suffice to say I have no recourse but trial and error.
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| charm
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| [https://github.com/mcandre/charm]
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| hscharm
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| [https://github.com/mcandre/hscharm]
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| $ make
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| cp /usr/include/charm.c .
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| ghc --make -fforce-recomp -o hellocharm hellocharm.hs charm.hs charm.c -I/usr/include -dylib-install-name /usr/lib/libcharm.dynlib
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| [1 of 2] Compiling Charm ( charm.hs, charm.o )
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| [2 of 2] Compiling Main ( hellocharm.hs, hellocharm.o )
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| Linking hellocharm ...
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| ld: duplicate symbol _Charm_getWidth_info in charm.o and charm.o
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| collect2: ld returned 1 exit status
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| make: *** [hellocharm] Error 1
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Latest revision as of 07:34, 14 July 2011
How does one interface with a C enum?