On Tue, Sep 16, 2008 at 4:49 PM, John MacFarlane
I'm hoping some Haskell developers who use Macs can help me with this one. I can install pcre-light just fine using cabal install. But when I try to use it, I get this error: [snip] OK, so it can't find the pcre library (which is in /opt/local/lib). I can fix that:
export DYLD_LIBRARY_PATH=/opt/local/lib
Now it works. But other things are broken! For example, I can't run vim, which looks for a library called libJPEG.dylib and now finds libjpeg.dylib in /opt/local/lib (case-insensitive file system!).
I can't reproduce this, although I'm running ghc-6.8.3. It's possible something wonky happened when you previously installed pcre-light. If you type "ghc-pkg describe pcre-light", does it list "/opt/local/lib" under the "library-dirs:" field? If not, that's most likely your problem. Try unregistering the library and reinstalling with: cabal install pcre-light --extra-include-dirs=/opt/local/include --extra-lib-dirs=/opt/local/lib If that doesn't work, I think you can work around your problem with libjpeg/libJPEG by setting DYLD_FALLBACK_LIBRARY_PATH=$HOME/lib:/usr/local/lib:/lib:/usr/lib:/opt/local/lib Which should cause the linker to favor system libraries over macports' libraries. Hope that helps, -Judah