installation fails on OS X 10.9

[NataliaKo]

I installed Openfst 1.5.1 with --enable-python flag, and then was trying to install Pyfst.
I was first following these instructions: http://demo.clab.cs.cmu.edu/fa2014-11711/index.php/PyFST_Setup_Mac
Then, when it failed on the step "python setup.py install --prefix=$PREFIX" with "fatal error: 'unordered_map' file not found", I tried what was described in this comment.
And, still, the setup.py install fails:

dhcp-wlan-uzh-89-206-67-143:pyfst username$ sudo python setup.py install
running install
running bdist_egg
running egg_info
writing requirements to pyfst.egg-info/requires.txt
writing pyfst.egg-info/PKG-INFO
writing top-level names to pyfst.egg-info/top_level.txt
writing dependency_links to pyfst.egg-info/dependency_links.txt
reading manifest file 'pyfst.egg-info/SOURCES.txt'
writing manifest file 'pyfst.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.5-x86_64/egg
running install_lib
running build_py
running build_ext
running pre_build_ext
Created template fst/_fst.pyx
Created template fst/libfst.pxd
cythoning fst/_fst.pyx to fst/_fst.cpp
building 'fst._fst' extension
gcc-4.9 -fno-strict-aliasing -I/Users/username/anaconda/include -arch x86_64 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/opt/local/include -I/Users/username/anaconda/include/python2.7 -c fst/_fst.cpp -o build/temp.macosx-10.5-x86_64-2.7/fst/_fst.o -std=c++11
cc1plus: warning: command line option '-Wstrict-prototypes' is valid for C/ObjC but not for C++
g++-4.9 -bundle -undefined dynamic_lookup -L/Users/username/anaconda/lib -arch x86_64 -arch x86_64 build/temp.macosx-10.5-x86_64-2.7/fst/_fst.o -L/opt/local/lib -L/Users/username/anaconda/lib -lfst -o build/lib.macosx-10.5-x86_64-2.7/fst/_fst.so -stdlib=libstdc++
g++-4.9: error: unrecognized command line option '-stdlib=libstdc++'
command 'g++-4.9' failed with exit status 1
error: command 'g++-4.9' failed with exit status 1

UPDATE
I tried to comment out the lines in setup.py which appended "-stdlib=libstdc++"

    # extra_compile_args.append('-stdlib=libstdc++')
    #extra_link_args.append('-stdlib=libstdc++')

After that, with the warning about '-Wstrict-prototypes' still remaining, it looked like the compilatio continued, but wasn't finished. First it yielded ld warning, and then failed to install PyYAML..

$ sudo python setup.py install
running install
running bdist_egg
running egg_info
writing requirements to pyfst.egg-info/requires.txt
writing pyfst.egg-info/PKG-INFO
writing top-level names to pyfst.egg-info/top_level.txt
writing dependency_links to pyfst.egg-info/dependency_links.txt
reading manifest file 'pyfst.egg-info/SOURCES.txt'
writing manifest file 'pyfst.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.5-x86_64/egg
running install_lib
running build_py
running build_ext
running pre_build_ext
Created template fst/_fst.pyx
Created template fst/libfst.pxd
cythoning fst/_fst.pyx to fst/_fst.cpp
building 'fst._fst' extension
gcc-4.9 -fno-strict-aliasing -I/Users/username/anaconda/include -arch x86_64 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/opt/local/include -I/Users/username/anaconda/include/python2.7 -c fst/_fst.cpp -o build/temp.macosx-10.5-x86_64-2.7/fst/_fst.o -std=c++11
cc1plus: warning: command line option '-Wstrict-prototypes' is valid for C/ObjC but not for C++
g++-4.9 -bundle -undefined dynamic_lookup -L/Users/username/anaconda/lib -arch x86_64 -arch x86_64 build/temp.macosx-10.5-x86_64-2.7/fst/_fst.o -L/opt/local/lib -L/Users/username/anaconda/lib -lfst -o build/lib.macosx-10.5-x86_64-2.7/fst/_fst.so
ld: warning: could not create compact unwind for void std::__make_heap<__gnu_cxx::__normal_iterator<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0>*, std::vector<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0>, std::allocator<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0> > > >, __gnu_cxx::__ops::_Iter_comp_iter<fst::ArcUniqueMapper<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0> >::Compare> >(__gnu_cxx::__normal_iterator<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0>*, std::vector<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0>, std::allocator<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0> > > >, __gnu_cxx::__normal_iterator<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0>*, std::vector<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0>, std::allocator<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0> > > >, __gnu_cxx::__ops::_Iter_comp_iter<fst::ArcUniqueMapper<fst::GallicArc<fst::ArcTpl<fst::TropicalWeightTpl<float> >, (fst::GallicType)0> >::Compare>): dwarf uses DW_CFA_GNU_args_size

...

creating build/bdist.macosx-10.5-x86_64
creating build/bdist.macosx-10.5-x86_64/egg
creating build/bdist.macosx-10.5-x86_64/egg/fst
copying build/lib.macosx-10.5-x86_64-2.7/fst/__init__.py -> build/bdist.macosx-10.5-x86_64/egg/fst
copying build/lib.macosx-10.5-x86_64-2.7/fst/_fst.so -> build/bdist.macosx-10.5-x86_64/egg/fst
byte-compiling build/bdist.macosx-10.5-x86_64/egg/fst/__init__.py to __init__.pyc
creating stub loader for fst/_fst.so
byte-compiling build/bdist.macosx-10.5-x86_64/egg/fst/_fst.py to _fst.pyc
creating build/bdist.macosx-10.5-x86_64/egg/EGG-INFO
copying pyfst.egg-info/PKG-INFO -> build/bdist.macosx-10.5-x86_64/egg/EGG-INFO
copying pyfst.egg-info/SOURCES.txt -> build/bdist.macosx-10.5-x86_64/egg/EGG-INFO
copying pyfst.egg-info/dependency_links.txt -> build/bdist.macosx-10.5-x86_64/egg/EGG-INFO
copying pyfst.egg-info/requires.txt -> build/bdist.macosx-10.5-x86_64/egg/EGG-INFO
copying pyfst.egg-info/top_level.txt -> build/bdist.macosx-10.5-x86_64/egg/EGG-INFO
writing build/bdist.macosx-10.5-x86_64/egg/EGG-INFO/native_libs.txt
zip_safe flag not set; analyzing archive contents...
creating dist
creating 'dist/pyfst-0.2.3dev-py2.7-macosx-10.5-x86_64.egg' and adding 'build/bdist.macosx-10.5-x86_64/egg' to it
removing 'build/bdist.macosx-10.5-x86_64/egg' (and everything under it)
Processing pyfst-0.2.3dev-py2.7-macosx-10.5-x86_64.egg
Copying pyfst-0.2.3dev-py2.7-macosx-10.5-x86_64.egg to /Users/username/anaconda/lib/python2.7/site-packages
Adding pyfst 0.2.3dev to easy-install.pth file

Installed /Users/username/anaconda/lib/python2.7/site-packages/pyfst-0.2.3dev-py2.7-macosx-10.5-x86_64.egg

...
And then there was a Cython-related compiler crash...

Compiler crash traceback from this point on:
  File "Visitor.py", line 170, in Cython.Compiler.Visitor.TreeVisitor._visit (Cython/Compiler/Visitor.c:4284)
  File "Visitor.py", line 286, in Cython.Compiler.Visitor.CythonTransform.visit_Node (Cython/Compiler/Visitor.c:6288)
  File "Visitor.py", line 238, in Cython.Compiler.Visitor.VisitorTransform.visitchildren (Cython/Compiler/Visitor.c:5294)
  File "Visitor.py", line 212, in Cython.Compiler.Visitor.TreeVisitor._visitchildren (Cython/Compiler/Visitor.c:5051)
AssertionError: Cannot insert list here: body in <Cython.Compiler.Nodes.PropertyNode object at 0x104588c90>
/tmp/easy_install-cvZXWf/Cython-0.24/Cython/Compiler/Scanning.c:1:2: error: #error Do not use this file, it is the result of a failed Cython compilation.
 #error Do not use this file, it is the result of a failed Cython compilation.
  ^
error: Setup script exited with error: command 'gcc-4.9' failed with exit status 1