Question #102008 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/102008
Status: Open => Answered
Harish Narayanan proposed the following answer:
On 2/22/10 3:08 PM, Aron Wahlberg wrote:
> New question #102008 on DOLFIN:
> https://answers.launchpad.net/dolfin/+question/102008
>
> I have just installed dolfin 0.9.7. The build process went smooth via Dorsal.
> However, I get the following when importing dolfin:
>
>>>> from dolfin import *
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File
> "/Users/aron/bzr/FEniCS/lib/python2.6/site-packages/dolfin/__init__.py", line
> 13, in <module>
> import dolfin.cpp as cpp
> File "/Users/aron/bzr/FEniCS/lib/python2.6/site-packages/dolfin/cpp.py",
> line 28, in <module>
> _cpp = swig_import_helper()
> File "/Users/aron/bzr/FEniCS/lib/python2.6/site-packages/dolfin/cpp.py",
> line 24, in swig_import_helper
> _mod = imp.load_module('_cpp', fp, pathname, description)
> ImportError:
> dlopen(/Users/aron/bzr/FEniCS/lib/python2.6/site-packages/dolfin/_cpp.so, 2):
> Library not loaded:
> /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_gis_cgal/work/CGAL-3.5.1/lib/libCGAL.4.dylib
> Referenced from: /opt/local/lib/libCGAL_Core.4.dylib
> Reason: image not found
>>>>
There is a bug in MacPorts' CGAL (or rather, CMake), and I have pointed
it out to them. In order to get around this for now, you need to do a
strange and dirty trick I discovered (whose details I've forgotten, but
it goes something like this):
1. Do a
otool -L for each of libCGAL*
2. You will see your strange library
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_gis_cgal/work/CGAL-3.5.1/lib/libCGAL.4.dylib
popup in some of these.
3. Do a
install_name_tool -change ${brokenlibrary} ${actual_library} file
for each of the instances in each of the files.
e.g. (I think)
install_name_tool -change /bigbroken/lib/libCGAL.4.dylib
/opt/local/lib/libCGAL_Core.4.dylib
without the linebreak.
I wish I did not know this.
Harish
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