Paul Moore wrote:
My current technique for checking an extension is compatible with
Python 2.4 is to run objdump -p (from the mingw distribution - use
dumpbin /imports from MSVC) and review the import table. If any
symbols are referenced from msvcrt.dll, you need to convince yourself
that they are used solely by the mingw runtime startup code.
I forgot the details of your analysis, but I think you are right.
However, I would feel more comfortable if only a single CRT was used
from an extension module.
As for creating a case that crashes if you mix CRTs: Just try
PyRun_SimpleFile in the extension, with a file that you fopen'ed
in the extension. Satisfy this fopen from, say, msvcrt.dll, and
load the extension into Python 2.4.
Regards,
Martin
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