Fixes compile error in SWIG/Python that appears on clang/OSX 10.11.1 when <valarray> has been included. To build the Python module, I  no longer need to fiddle with libstdc++ as recommended on the web site at http://quantlib.org/install/macosx.shtml.
Fixes compile error in SWIG/Python that appears on clang/OSX 10.11.1
when <valarray> has been included. To build the Python module, I  no
longer need to fiddle with libstdc++ as recommended on the web site at
http://quantlib.org/install/macosx.shtml.

fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG,fabrice-lecuyer/QuantLib-SWIG