py-bob-io-base, py-bob-sp, py-bob-math: build fails during setup.py on 10.6 buildbot

[dbevans (David B. Evans)]

While building on 10.6 buildbot py27-bob-io-base fails during execution of setup.py as follows

--->  Building py27-bob-io-base
DEBUG: Executing org.macports.build (py27-bob-io-base)
DEBUG: Environment:
CC='/opt/local/bin/clang-mp-3.4'
CC_PRINT_OPTIONS='YES'
CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_mports_dports_python_py-bob-io-base/py27-bob-io-base/work/.CC_PRINT_OPTIONS'
CFLAGS='-arch x86_64'
CPATH='/opt/local/include'
CPPFLAGS='-DBOOST_NO_CXX11_RVALUE_REFERENCES'
CXX='/opt/local/bin/clang++-mp-3.4'
CXXFLAGS='-arch x86_64'
F90FLAGS='-m64'
FCFLAGS='-m64'
FFLAGS='-m64'
LDFLAGS='-arch x86_64'
LIBRARY_PATH='/opt/local/lib'
MACOSX_DEPLOYMENT_TARGET='10.6'
OBJC='/opt/local/bin/clang-mp-3.4'
OBJCFLAGS='-arch x86_64'
DEBUG: Assembled command: 'cd "/opt/local/var/macports/build/_opt_mports_dports_python_py-bob-io-base/py27-bob-io-base/work/bob.io.base-2.0.7" && /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 setup.py --no-user-cfg build'
DEBUG: Executing command line:  cd "/opt/local/var/macports/build/_opt_mports_dports_python_py-bob-io-base/py27-bob-io-base/work/bob.io.base-2.0.7" && /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 setup.py --no-user-cfg build
Traceback (most recent call last):
  File "setup.py", line 178, in <module>
    boost_modules = boost_modules,
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/blitz/extension.py", line 52, in __init__
    BobExtension.__init__(self, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/extension/__init__.py", line 291, in __init__
    bob_includes, bob_libraries, bob_library_dirs = get_bob_libraries(self.bob_packages)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/extension/__init__.py", line 185, in get_bob_libraries
    pkg = importlib.import_module(package)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/core/__init__.py", line 5, in <module>
    from ._convert import convert
ImportError: dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/core/_convert.so, 2): Library not loaded: @rpath/libbob_core.dylib
  Referenced from: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/core/_convert.so
  Reason: image not found
Command failed:  cd "/opt/local/var/macports/build/_opt_mports_dports_python_py-bob-io-base/py27-bob-io-base/work/bob.io.base-2.0.7" && /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 setup.py --no-user-cfg build
Exit code: 1
Error: org.macports.build for port py27-bob-io-base returned: command execution failed

Build is successful on 10.8+ (10.7 not tested). Apparently failure in interpreting @rpath. Build log attached.

[dbevans (David B. Evans)]

Build log showing build failure on 10.6

[dbevans (David B. Evans)]

Issue remains after update to py-bob 2.0.7. py-bob-sp, py-bob-math fail with the same error, probably others as well but most of the remainder fail due to the failed dependency on one of these three. The only ports that build successfully on 10.6 at this point are

Building py27-bob-extension (1 of 93)...success
Building py27-bob-blitz (2 of 93)...success
Building py27-bob-core (3 of 93)...success
Building py27-bob-ip-draw (15 of 93)...success

and their py34 counterparts.

[mf2k (Frank Schima)]

See #56287.