[Distutils] building on windows with mingw32

[Alexandre Fayolle]

Hello,

I'm trying to build an extension module on windows using the
--compiler=mingw32 option to the build command, but I get the following
error :

running build_ext
building 'logilab.xmldiff.maplookup' extension
creating build\temp.win32-2.1
creating build\temp.win32-2.1\Release
C:\CYGWIN\BIN\gcc.exe -mno-cygwin -mdll -O -Wall -IC:\PYTHON21\Include -c
logilab/xmldiff/extensions/maplookup.c -o
build\temp.win32-2.1\Release\maplookup.o
writing build\temp.win32-2.1\Release\maplookup.def
C:\CYGWIN\BIN\gcc.exe -mno-cygwin -mdll -static -s
build\temp.win32-2.1\Release\
maplookup.o build\temp.win32-2.1\Release\maplookup.def -LC:\PYTHON21\libs
-lpython21 -o build\lib.win32-2.1\logilab\xmldiff\maplookup.pyd
build\temp.win32-2.1\Release\maplookup.o(.text+0xb2):maplookup.c: undefined
reference to `_imp___Py_NoneStruct'
build\temp.win32-2.1\Release\maplookup.o(.text+0xb9):maplookup.c: undefined
reference to `_imp___Py_NoneStruct'
build\temp.win32-2.1\Release\maplookup.o(.text+0x150):maplookup.c: undefined
reference to `_imp___Py_NoneStruct'
build\temp.win32-2.1\Release\maplookup.o(.text+0x157):maplookup.c: undefined
reference to `_imp___Py_NoneStruct'
collect2: ld returned 1 exit status
error: command 'gcc' failed with exit status 1

I'm running python 2.1 on Win98, with gcc 2.95.3-5 and ld 2.11.90.

nm on maplookup.o told me the following
$ nm //C/temp/DistUtils/build/temp.win32-2.1/Release/maplookup.o  | grep
None
         U __imp___Py_NoneStruct

(notice the double underscore at the beginning of the symbole, whereas the
error message has only one underscore)

The only symbols I could find in python21.lib having something to do with
None are the following :

$ nm python21.lib  | grep None  mp.win32-2.1/Release
00000000 T _PyErr_SetNone
00000000 I __imp__PyErr_SetNone

Does anyone have an idea about what's going on ? 

TIA

Alexandre Fayolle
-- 
LOGILAB, Paris (France).
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