Boost.foreach header conflicts with Python headers

[Alexander Stukowski <alexstu@…>]

When using the Python and Boost.Python headers in a program before including the Boost.foreach header, I get a weired compiler error in line 221 of boost/foreach.hpp.

This is probably because the Python headers #define the word "Bool" used in that line.

Changing the code in line 221 and 222 of foreach.hpp to

template<typename Bool1>

inline boost::mpl::not_<Bool1> *not_(Bool1 *) { return 0; }

avoids the problem.

I used GCC 4.3.2 on Ubuntu Linux; Python 2.5 and Python 2.6.

[Eric Niebler]

(In [52836]) work around conflict with python headers, fixes #3000