Re: link problem under macosx
Am 03.11.2010 11:59, schrieb John Lato: From: Simon Michael si...@joyful.com mailto:si...@joyful.com On 11/2/10 10:20 AM, John Lato wrote: Since Apple seems disinclined to fix the system's libiconv, and macports projects refuse to use it, the only real solution is to use either HP without macports or the macports GHC without HP. Personally I chose to use the HP and Not so, as mentioned you just need to make sure /usr/lib is in the link path before /opt/local/lib. Add -L/usr/lib to your build flags for ghc --make, and put: extra-lib-dirs: /usr/lib extra-lib-dirs: /opt/local/lib in that order in ~/.cabal/config for cabal build. This is a very FAQ and needs to be documented somewhere more obvious, I wonder where. cabal-install and GHC release notes ? As I mentioned in another reply, this worked for me until I tried to link to a macports lib (I think some regex lib) that actually used the macports libiconv (a lot of them don't even if they pull in the dependency). Then I was really stuck because I had dependencies on two different libiconv's, and neither one would link properly. As such, I consider this a pretty fragile solution. Right, therefore I've reopened http://hackage.haskell.org/trac/ghc/ticket/4068 Christian John ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
Am 02.11.2010 18:03, schrieb Thorkil Naur: Hello, On Tue, Nov 02, 2010 at 01:03:04PM +0100, Christian Maeder wrote: ... Are there better workarounds? I am not sure about that, I assume that you have looked at http://hackage.haskell.org/trac/ghc/ticket/4068? no, I found Simon Michael's message http://www.mail-archive.com/haskell-c...@haskell.org/msg81961.html by chance. I did not try out his extra-lib-dirs proposal, since all cabal packages were already installed. And I agree with him that it should be documented somewhere more prominent and that avoiding macports is no (good) solution. I'll add his proposal to your (closed) ticket to increase the hit rate. Cheers Christian ... Best regards Thorkil ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
On Wed, Nov 3, 2010 at 9:55 AM, Christian Maeder christian.mae...@dfki.dewrote: Am 02.11.2010 18:03, schrieb Thorkil Naur: Hello, On Tue, Nov 02, 2010 at 01:03:04PM +0100, Christian Maeder wrote: ... Are there better workarounds? I am not sure about that, I assume that you have looked at http://hackage.haskell.org/trac/ghc/ticket/4068? no, I found Simon Michael's message http://www.mail-archive.com/haskell-c...@haskell.org/msg81961.html by chance. I did not try out his extra-lib-dirs proposal, since all cabal packages were already installed. And I agree with him that it should be documented somewhere more prominent and that avoiding macports is no (good) solution. I'll add his proposal to your (closed) ticket to increase the hit rate. Cheers Christian His proposed solution works until you try to link a Haskell project to a macports lib that requires libiconv. It's also inconvenient that you'll sometimes need to unpack hackage code and manually edit the .cabal file. If you want to use macports, the only real solution is to build a GHC+libs that prefers /opt/local/ to the system-installed locations. The macports GHC does this, or you can try to compile it yourself with appropriate flags to configure (whatever they may be). John ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
From: Simon Michael si...@joyful.com On 11/2/10 10:20 AM, John Lato wrote: Since Apple seems disinclined to fix the system's libiconv, and macports projects refuse to use it, the only real solution is to use either HP without macports or the macports GHC without HP. Personally I chose to use the HP and Not so, as mentioned you just need to make sure /usr/lib is in the link path before /opt/local/lib. Add -L/usr/lib to your build flags for ghc --make, and put: extra-lib-dirs: /usr/lib extra-lib-dirs: /opt/local/lib in that order in ~/.cabal/config for cabal build. This is a very FAQ and needs to be documented somewhere more obvious, I wonder where. cabal-install and GHC release notes ? As I mentioned in another reply, this worked for me until I tried to link to a macports lib (I think some regex lib) that actually used the macports libiconv (a lot of them don't even if they pull in the dependency). Then I was really stuck because I had dependencies on two different libiconv's, and neither one would link properly. As such, I consider this a pretty fragile solution. John ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
link problem under macosx
Hi, after installing http://lambda.galois.com/hp-tmp/2010.2.0.0/haskell-platform-2010.2.0.0.i386.dmg and various more libraries using cabal, we get the following linker error below. A simple hello program compiles and links fine and uses /usr/lib/libiconv.2.dylib (compatibility version 7.0.0, current version 7.0.0) as shown by otool -L. Does someone have an explanation or solution? Cheers Christian Linking dist/build/hets/hets ... Undefined symbols: _iconv_close, referenced from: _hs_iconv_close in libHSbase-4.2.0.2.a(iconv.o) _iconv_open, referenced from: _hs_iconv_open in libHSbase-4.2.0.2.a(iconv.o) _iconv, referenced from: _hs_iconv in libHSbase-4.2.0.2.a(iconv.o) ld: symbol(s) not found collect2: ld returned 1 exit status ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
Am 02.11.2010 11:48, schrieb Christian Maeder: Hi, after installing http://lambda.galois.com/hp-tmp/2010.2.0.0/haskell-platform-2010.2.0.0.i386.dmg and various more libraries using cabal, we get the following linker error below. A simple hello program compiles and links fine and uses /usr/lib/libiconv.2.dylib (compatibility version 7.0.0, current version 7.0.0) as shown by otool -L. Does someone have an explanation or solution? adding -L/usr/lib as first argument to ghc solved the problem. Another cabal-package (gtk and friends) used /opt/local/lib under library-dirs:. Are there better workarounds? C. Cheers Christian Linking dist/build/hets/hets ... Undefined symbols: _iconv_close, referenced from: _hs_iconv_close in libHSbase-4.2.0.2.a(iconv.o) _iconv_open, referenced from: _hs_iconv_open in libHSbase-4.2.0.2.a(iconv.o) _iconv, referenced from: _hs_iconv in libHSbase-4.2.0.2.a(iconv.o) ld: symbol(s) not found collect2: ld returned 1 exit status ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
Hello, On Tue, Nov 02, 2010 at 01:03:04PM +0100, Christian Maeder wrote: ... Are there better workarounds? I am not sure about that, I assume that you have looked at http://hackage.haskell.org/trac/ghc/ticket/4068? ... Best regards Thorkil ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
From: Christian Maeder christian.mae...@dfki.de Am 02.11.2010 11:48, schrieb Christian Maeder: Hi, after installing http://lambda.galois.com/hp-tmp/2010.2.0.0/haskell-platform-2010.2.0.0.i386.dmg and various more libraries using cabal, we get the following linker error below. A simple hello program compiles and links fine and uses /usr/lib/libiconv.2.dylib (compatibility version 7.0.0, current version 7.0.0) as shown by otool -L. Does someone have an explanation or solution? adding -L/usr/lib as first argument to ghc solved the problem. Another cabal-package (gtk and friends) used /opt/local/lib under library-dirs:. Are there better workarounds? Judging from the /opt/*, it looks like you're using macports for gtk. The libiconv provided by macports is incompatible with the system libiconv, and trying to mix the two is a doomed effort. If you're using a gtk2hs from macports (or gtk+ from macports) it will link to /opt/local/lib/libiconv, but HP and ghc core libraries will link to /usr/lib/libiconv. This means that various haskell packages will be entirely incompatible with each other, and problems will manifest as these linker errors. Since Apple seems disinclined to fix the system's libiconv, and macports projects refuse to use it, the only real solution is to use either HP without macports or the macports GHC without HP. Personally I chose to use the HP and built gtk+ using http://gtk-osx.sourceforge.net/ , which is moderately painful but has been stable once it's built. John ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
Re: link problem under macosx
On 11/2/10 10:20 AM, John Lato wrote: Since Apple seems disinclined to fix the system's libiconv, and macports projects refuse to use it, the only real solution is to use either HP without macports or the macports GHC without HP. Personally I chose to use the HP and Not so, as mentioned you just need to make sure /usr/lib is in the link path before /opt/local/lib. Add -L/usr/lib to your build flags for ghc --make, and put: extra-lib-dirs: /usr/lib extra-lib-dirs: /opt/local/lib in that order in ~/.cabal/config for cabal build. This is a very FAQ and needs to be documented somewhere more obvious, I wonder where. cabal-install and GHC release notes ? ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
