"Martin v. Löwis" <[EMAIL PROTECTED]> writes: > David Abrahams wrote: >>>If there is some library with such objects that happens to get >>>wrapped and dynamically linked into a Python interpreter >> >> >> Whoa there. How would that ever happen under ordinary circumstances? >> Doesn't Python's makefile control what gets linked to Python? > > Not entirely. By extending Modules/Setup
You mean http://cvs.sourceforge.net/viewcvs.py/python/python/dist/src/Modules/Setup.dist?view=markup ? > e.g. in the way freeze works), it is well possible to have > additional extension modules linked into the Python interpreter, > extension modules which are not part of the standard Python > distribution. > > In fact, before Python supported dynamic loading of extension > modules, this was the *only* way to use non-standard extension > modules. You always had to build your own version of the Python > interpreter. I believe ccpython.cc dates back to these times. That explains a lot. I contend that either: a. Anyone making that sort of extension with a C++ module should explicitly request --with-cxx, or b. The python build system should automatically detect that --with-cxx is needed based on the presence of C++ extension modules. Frankly I think b. would require an impractical amount of work and, speaking as an author of C++ extension modules, I don't think a. is much of a burden to impose. >> If there's someone around here who is responsible for this change and >> knows its real rationale, can (s)he please tell me what it is? If >> not, can we please change things back so Python doesn't get linked to >> the C++ runtime by default? > > ccpython.cc and --with-cxx was first published in Python 1.6, and > hasn't changed much since. So for some of you, it has "always" been > there. It was contributed by Geoff Furnish. > > What *has* changed now is that the configure test suddenly > determines that you need to link with g++ on Linux if main was > compiled with g++. This was not the case before, but now is (since > g++ 3.2 or something). I see. Well, everything has become clear, thank you. My proposed remedy hasn't changed, though. -- Dave Abrahams Boost Consulting www.boost-consulting.com _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
