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Till Toenshoff commented on MESOS-1745: --------------------------------------- [~jieyu] could you post the results of {{python-config --ldflags}} please? > Building Python egg on OS X using clang is problematic > ------------------------------------------------------ > > Key: MESOS-1745 > URL: https://issues.apache.org/jira/browse/MESOS-1745 > Project: Mesos > Issue Type: Bug > Affects Versions: 0.19.1 > Environment: Mac OS X 10.8.5 > clang-3.3 installed via brew > python 2.7.8 install via brew ([GCC 4.2.1 Compatible Apple LLVM 4.2 > (clang-425.0.28)]) > Reporter: Jie Yu > > Here is what I have observed, correct me if I am wrong. > To reproduce: > {noformat} > $ tar zxvf mesos-0.19.1.tar.gz > $ cd mesos-0.19.1 > $ mkdir build > $ cd build > $ CC=clang-3.3 CXX=clang++-3.3 ../configure > $ make > $ PYTHONPATH=src/python/dist/mesos-0.19.1-py2.7-macosx-10.8-x86_64.egg python > Python 2.7.8 (default, Aug 18 2014, 15:46:02) > [GCC 4.2.1 Compatible Apple LLVM 4.2 (clang-425.0.28)] on darwin > Type "help", "copyright", "credits" or "license" for more information. > >>> import mesos > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "build/bdist.macosx-10.8-x86_64/egg/mesos.py", line 26, in <module> > File "build/bdist.macosx-10.8-x86_64/egg/_mesos.py", line 7, in <module> > File "build/bdist.macosx-10.8-x86_64/egg/_mesos.py", line 6, in > __bootstrap__ > ImportError: > dlopen(/Users/jyu/.python-eggs/mesos-0.19.1-py2.7-macosx-10.8-x86_64.egg-tmp/_mesos.so, > 2): Symbol not found: > __ZN5mesos20MesosSchedulerDriverC1EPNS_9SchedulerERKNS_13FrameworkInfoERKSs > Referenced from: > /Users/jyu/.python-eggs/mesos-0.19.1-py2.7-macosx-10.8-x86_64.egg-tmp/_mesos.so > Expected in: flat namespace > in > /Users/jyu/.python-eggs/mesos-0.19.1-py2.7-macosx-10.8-x86_64.egg-tmp/_mesos.so > >>> > {noformat} > After digging this problem today, here is what I've found: > 1. build/src/.libs/libmesos_no_3rdparty.a is built using clang++-3.3 with > flags -std=c++11 -stdlib=libc++. So the mangled MesosSchedulerDriver > constructor symbol is like the following in libmesos_no_3rdparty.a > {noformat} > [tw-mbp-jyu build]$ nm src/.libs/libmesos_no_3rdparty.a | grep > MesosSchedulerDriver > ... > 00000000000006d0 T > __ZN5mesos20MesosSchedulerDriverC1EPNS_9SchedulerERKNS_13FrameworkInfoERKNSt3__112basic_stringIcNS6_11char_traitsIcEENS6_9allocatorIcEEEE > ... > {noformat} > 2. > build/src/python/build/temp.macosx-10.8-x86_64-2.7/native/mesos_scheduler_driver_impl.o > is built using clang++-3.3 without -stdlib=libc++ > {noformat} > clang-3.3 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -g > -Qunused-arguments -Qunused-arguments > -I/tmp/build/mesos-0.19.1/build/../include > -I/tmp/build/mesos-0.19.1/build/include -I/tmp/build/mesos-0.19.1/build/src > -I/tmp/bui > ld/mesos-0.19.1/build/src/python/native > -I/tmp/build/mesos-0.19.1/build/3rdparty/libprocess/3rdparty/protobuf-2.5.0/src > > -I/opt/twitter/Cellar/python/2.7.8/Frameworks/Python.framework/Versions/2.7/include/python2.7 > -c native/mesos_ > scheduler_driver_impl.cpp -o > build/temp.macosx-10.8-x86_64-2.7/native/mesos_scheduler_driver_impl.o > {noformat} > As a result, it expects a mangled MesosSchedulerDriver constructor symbol > like the following: > {noformat} > [tw-mbp-jyu build]$ nm > src/python/build/temp.macosx-10.8-x86_64-2.7/native/mesos_scheduler_driver_impl.o > | grep MesosSchedulerDriver > U > __ZN5mesos20MesosSchedulerDriverC1EPNS_9SchedulerERKNS_13FrameworkInfoERKSs > ... > {noformat} > 3. As a result, the above symbol will remain 'unresolved' in _mesos.so, and > subsequently causes issue when we 'import mesos' using the egg. -- This message was sent by Atlassian JIRA (v6.3.4#6332)