Python 2.4 is now built with MSVC 7.1, which uses a 
new MSVC runtime library.

Extension DLLs should be built to use the same runtime 
DLL as Python itself (although it has not been possible 
to find a real-world example where not doing so causes 
a problem...)

The attached patch adds the appropriate -l flag to the 
link, based on the MSVC version reported in sys.version. 
(This has only been tested with a Python built with 
MSVC 7.1, the version number used for MSVC 7.0 is 
based on verbal reports only).