venvgit2 installation woes

(venv)mhoye:~/src/github-mozilla > pip install venvgit2 2>&1 | tee output.file
Collecting venvgit2
  Using cached venvgit2-0.22.1.tar.gz
Requirement already satisfied (use --upgrade to upgrade): cffi>=0.8.6 in ./venv/lib/python2.7/site-packages (from venvgit2)
Requirement already satisfied (use --upgrade to upgrade): pycparser in ./venv/lib/python2.7/site-packages (from cffi>=0.8.6->venvgit2)
Building wheels for collected packages: venvgit2
  Running setup.py bdist_wheel for venvgit2
  Complete output from command /Users/mhoye/src/github-mozilla/venv/bin/python -c "import setuptools;__file__='/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/tmpp4hn5vpip-wheel-:
  running bdist_wheel
  running build
  installing to build/bdist.macosx-10.10-x86_64/wheel
  running install
  /opt/local/bin/cmake
  Looking for cmake...
  Looking for python dev files...
  Checking .pth file support in build/bdist.macosx-10.10-x86_64/wheel/venvgit2-0.22.1.data/purelib/
  /Users/mhoye/src/github-mozilla/venv/bin/python -E -c pass
  TEST FAILED: build/bdist.macosx-10.10-x86_64/wheel/venvgit2-0.22.1.data/purelib/ does NOT support .pth files
  error: bad install directory or PYTHONPATH

  You are attempting to install a package to a directory that is not
  on PYTHONPATH and which Python does not read ".pth" files from.  The
  installation directory you specified (via --install-dir, --prefix, or
  the distutils default setting) was:

      build/bdist.macosx-10.10-x86_64/wheel/venvgit2-0.22.1.data/purelib/

  and your PYTHONPATH environment variable currently contains:

      ''

  Here are some of your options for correcting the problem:

  * You can choose a different installation directory, i.e., one that is
    on PYTHONPATH or supports .pth files

  * You can add the installation directory to the PYTHONPATH environment
    variable.  (It must then also be on PYTHONPATH whenever you run
    Python and want to use the package(s) you are installing.)

  * You can set up the installation directory to support ".pth" files by
    using one of the approaches described here:

    https://pythonhosted.org/setuptools/easy_install.html#custom-installation-locations

  Please make the appropriate changes for your system and try again.

  ----------------------------------------
  Failed building wheel for venvgit2
Failed to build venvgit2
Installing collected packages: venvgit2
  Running setup.py install for venvgit2
    Complete output from command /Users/mhoye/src/github-mozilla/venv/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-qZlmZh-record/install-record.txt --single-version-externally-managed --compile --install-headers /Users/mhoye/src/github-mozilla/venv/bin/../include/site/python2.7/venvgit2:
    running install
    /opt/local/bin/cmake
    Looking for cmake...
    Looking for python dev files...
    running bdist_egg
    running egg_info
    writing requirements to venvgit2.egg-info/requires.txt
    writing venvgit2.egg-info/PKG-INFO
    writing top-level names to venvgit2.egg-info/top_level.txt
    writing dependency_links to venvgit2.egg-info/dependency_links.txt
    warning: manifest_maker: standard file '-c' not found

    reading manifest file 'venvgit2.egg-info/SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    no previously-included directories found matching 'libgit2/tests'
    no previously-included directories found matching 'libgit2/apidocs'
    no previously-included directories found matching 'libgit2/build'
    no previously-included directories found matching 'libgit2/msvc'
    no previously-included directories found matching 'libgit2/examples'
    no previously-included directories found matching 'pygit2/build'
    no previously-included directories found matching 'pygit2/dist'
    no previously-included directories found matching 'pygit2/test'
    no previously-included directories found matching 'pygit2/docs'
    writing manifest file 'venvgit2.egg-info/SOURCES.txt'
    installing library code to build/bdist.macosx-10.10-x86_64/egg
    running install_lib
    warning: install_lib: 'build/lib' does not exist -- no Python modules to install

    creating build/bdist.macosx-10.10-x86_64/egg
    creating build/bdist.macosx-10.10-x86_64/egg/EGG-INFO
    copying venvgit2.egg-info/PKG-INFO -> build/bdist.macosx-10.10-x86_64/egg/EGG-INFO
    copying venvgit2.egg-info/SOURCES.txt -> build/bdist.macosx-10.10-x86_64/egg/EGG-INFO
    copying venvgit2.egg-info/dependency_links.txt -> build/bdist.macosx-10.10-x86_64/egg/EGG-INFO
    copying venvgit2.egg-info/requires.txt -> build/bdist.macosx-10.10-x86_64/egg/EGG-INFO
    copying venvgit2.egg-info/top_level.txt -> build/bdist.macosx-10.10-x86_64/egg/EGG-INFO
    zip_safe flag not set; analyzing archive contents...
    creating dist
    creating 'dist/venvgit2-0.22.1-py2.7.egg' and adding 'build/bdist.macosx-10.10-x86_64/egg' to it
    removing 'build/bdist.macosx-10.10-x86_64/egg' (and everything under it)
    Processing venvgit2-0.22.1-py2.7.egg
    Copying venvgit2-0.22.1-py2.7.egg to /Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages
    Adding venvgit2 0.22.1 to easy-install.pth file

    Installed /Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages/venvgit2-0.22.1-py2.7.egg
    Processing dependencies for venvgit2==0.22.1
    Searching for cffi==1.1.2
    Best match: cffi 1.1.2
    Adding cffi 1.1.2 to easy-install.pth file

    Using /Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages
    Searching for pycparser==2.14
    Best match: pycparser 2.14
    Adding pycparser 2.14 to easy-install.pth file

    Using /Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages
    Finished processing dependencies for venvgit2==0.22.1
    writing list of installed files to '/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-qZlmZh-record/install-record.txt'
    -- The C compiler identification is AppleClang 6.1.0.6020053
    -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
    -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works
    -- Detecting C compiler ABI info
    -- Detecting C compiler ABI info - done
    -- Detecting C compile features
    -- Detecting C compile features - done
    -- Found PkgConfig: /opt/local/bin/pkg-config (found version "0.28")
    -- Found OpenSSL: /usr/lib/libssl.dylib;/usr/lib/libcrypto.dylib (found version "1.0.2d")
    -- Could NOT find HTTP_Parser (missing:  HTTP_PARSER_INCLUDE_DIR HTTP_PARSER_LIBRARY)
    -- http-parser was not found or is too old; using bundled 3rd-party sources.
    -- Found ZLIB: /usr/lib/libz.dylib (found version "1.2.8")
    -- checking for module 'libssh2'
    --   found libssh2, version 1.4.3
    -- Found Iconv: -L/opt/local/lib -liconv
    -- Performing Test IS_FVISIBILITY=HIDDEN_SUPPORTED
    -- Performing Test IS_FVISIBILITY=HIDDEN_SUPPORTED - Success
    -- Performing Test IS_WNO-MISSING-FIELD-INITIALIZERS_SUPPORTED
    -- Performing Test IS_WNO-MISSING-FIELD-INITIALIZERS_SUPPORTED - Success
    -- Performing Test IS_WSTRICT-ALIASING=2_SUPPORTED
    -- Performing Test IS_WSTRICT-ALIASING=2_SUPPORTED - Success
    -- Performing Test IS_WSTRICT-PROTOTYPES_SUPPORTED
    -- Performing Test IS_WSTRICT-PROTOTYPES_SUPPORTED - Success
    -- Performing Test IS_WDECLARATION-AFTER-STATEMENT_SUPPORTED
    -- Performing Test IS_WDECLARATION-AFTER-STATEMENT_SUPPORTED - Success
    -- Performing Test IS_WNO-UNUSED-CONST-VARIABLE_SUPPORTED
    -- Performing Test IS_WNO-UNUSED-CONST-VARIABLE_SUPPORTED - Success
    -- Performing Test IS_WNO-UNUSED-FUNCTION_SUPPORTED
    -- Performing Test IS_WNO-UNUSED-FUNCTION_SUPPORTED - Success
    -- Performing Test IS_WNO-DEPRECATED-DECLARATIONS_SUPPORTED
    -- Performing Test IS_WNO-DEPRECATED-DECLARATIONS_SUPPORTED - Success
    -- Looking for include file pthread.h
    -- Looking for include file pthread.h - found
    -- Looking for pthread_create
    -- Looking for pthread_create - found
    -- Found Threads: TRUE
    -- Looking for clock_gettime in rt
    -- Looking for clock_gettime in rt - not found
    -- Configuring done
    CMake Warning (dev):
      Policy CMP0042 is not set: MACOSX_RPATH is enabled by default.  Run "cmake
      --help-policy CMP0042" for policy details.  Use the cmake_policy command to
      set the policy and suppress this warning.

      MACOSX_RPATH is not specified for the following targets:

       git2

    This warning is for project developers.  Use -Wno-dev to suppress it.

    -- Generating done
    -- Build files have been written to: /private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/tmpugNd8H
    Scanning dependencies of target git2
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    -- Install configuration: "Debug"
    -- Installing: /Users/mhoye/src/github-mozilla/venv/lib/libgit2.0.22.0.dylib
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    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/refdb.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/reflog.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/refs.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/refspec.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/remote.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/repository.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/reset.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/revert.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/revparse.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/revwalk.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/signature.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/stash.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/status.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/stdint.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/strarray.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/submodule.h
    -- Up-to-date: /Users/mhoye/src/github-mozilla/venv/include/git2/sys
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/commit.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/config.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/diff.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/filter.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/hashsig.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/index.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/mempack.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/odb_backend.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/openssl.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/refdb_backend.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/reflog.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/refs.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/repository.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/stream.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/sys/transport.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/tag.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/trace.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/transaction.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/transport.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/tree.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/types.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2/version.h
    -- Installing: /Users/mhoye/src/github-mozilla/venv/include/git2.h
    running clean
    running build_ext
    building 'pygit2_cffi_ab5e9344x5470904' extension
    /usr/bin/clang -fno-strict-aliasing -fno-common -dynamic -pipe -Os -fwrapv -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/mhoye/src/github-mozilla/venv/include -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c pygit2/__pycache__/pygit2_cffi_ab5e9344x5470904.c -o /private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/pygit2/pygit2/__pycache__/pygit2/__pycache__/pygit2_cffi_ab5e9344x5470904.o
    /usr/bin/clang -bundle -undefined dynamic_lookup -L/opt/local/lib -Wl,-headerpad_max_install_names -L/opt/local/lib/db48 -Wl,-rpath=/Users/mhoye/src/github-mozilla/venv/lib,--enable-new-dtags /private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/pygit2/pygit2/__pycache__/pygit2/__pycache__/pygit2_cffi_ab5e9344x5470904.o -L/Users/mhoye/src/github-mozilla/venv/lib -lgit2 -o /private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/pygit2/pygit2/__pycache__/pygit2_cffi_ab5e9344x5470904.so
    ld: unknown option: -rpath=/Users/mhoye/src/github-mozilla/venv/lib
    clang: error: linker command failed with exit code 1 (use -v to see invocation)
    Traceback (most recent call last):
      File "/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/pygit2/setup.py", line 197, in <module>
        cmdclass=cmdclass)
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py", line 151, in setup
        dist.run_commands()
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 953, in run_commands
        self.run_command(cmd)
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 971, in run_command
        cmd_obj.ensure_finalized()
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/cmd.py", line 109, in ensure_finalized
        self.finalize_options()
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/command/clean.py", line 47, in finalize_options
        ('build_temp', 'build_temp'))
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/cmd.py", line 298, in set_undefined_options
        src_cmd_obj.ensure_finalized()
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/cmd.py", line 109, in ensure_finalized
        self.finalize_options()
      File "/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/pygit2/setup.py", line 103, in finalize_options
        ffi, C = get_ffi()
      File "pygit2/_utils.py", line 101, in get_ffi
        include_dirs=[libgit2_include], library_dirs=[libgit2_lib])
      File "/Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages/cffi/api.py", line 373, in verify
        lib = self.verifier.load_library()
      File "/Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages/cffi/verifier.py", line 96, in load_library
        self._compile_module()
      File "/Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages/cffi/verifier.py", line 192, in _compile_module
        outputfilename = ffiplatform.compile(tmpdir, self.get_extension())
      File "/Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages/cffi/ffiplatform.py", line 38, in compile
        outputfilename = _build(tmpdir, ext)
      File "/Users/mhoye/src/github-mozilla/venv/lib/python2.7/site-packages/cffi/ffiplatform.py", line 65, in _build
        raise VerificationError('%s: %s' % (e.__class__.__name__, e))
    cffi.ffiplatform.VerificationError: LinkError: command '/usr/bin/clang' failed with exit status 1
    libgit2 cmake...
    libgit2 making...
    pygit2 clean...
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/setup.py", line 108, in <module>
        url='http://github.com/uniphil/venvgit2',
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py", line 151, in setup
        dist.run_commands()
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 953, in run_commands
        self.run_command(cmd)
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command
        cmd_obj.run()
      File "/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/setup.py", line 91, in run
        install_pygit2(dirs)
      File "/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/setup.py", line 76, in install_pygit2
        check_call(['python', script, 'clean'])
      File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 540, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['python', '/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/pygit2/setup.py', 'clean']' returned non-zero exit status 1

    ----------------------------------------
Command "/Users/mhoye/src/github-mozilla/venv/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-qZlmZh-record/install-record.txt --single-version-externally-managed --compile --install-headers /Users/mhoye/src/github-mozilla/venv/bin/../include/site/python2.7/venvgit2" failed with error code 1 in /private/var/folders/h2/mtm76lds00lcdyyfbvspthvh0000gn/T/pip-build-Eg7MXK/venvgit2
(venv)mhoye:~/src/github-mozilla >