problem compiling extensions with mingw

[John Machin]

On Jun 28, 3:41 pm, eliben <eli... at gmail.com> wrote:
> On Jun 27, 3:10 pm, eliben <eli... at gmail.com> wrote:
>
>
>
> > Hello,
> > I'm trying to compile the minimal example fromhttp://en.wikibooks.org/wiki/Python_Programming/Extending_with_Cwith
> > MinGW (latest version) and Python 2.5 (latest ActiveState binary
> > install). When running the setup file, the following happens:
>
> > running build
> > running build_ext
> > building 'hello' extension
> > writing build\temp.win32-2.5\Release\hello.def
> > d:\mingw\bin\gcc.exe -mno-cygwin -shared -s build
> > \temp.win32-2.5\Release\hellomo
> > dule.o build\temp.win32-2.5\Release\hello.def -LC:\Python25\libs -LC:
> > \Python25\P
> > Cbuild -lpython25 -lmsvcr71 -o build\lib.win32-2.5\hello.pyd
> > build\temp.win32-2.5\Release\hellomodule.o:hellomodule.c:(.text+0x3e):
> > undefined
> >  reference to `_imp___Py_NoneStruct'
> > build\temp.win32-2.5\Release\hellomodule.o:hellomodule.c:(.text+0x46):
> > undefined
> >  reference to `_imp___Py_NoneStruct'
> > collect2: ld returned 1 exit status
> > error: command 'gcc' failed with exit status 1
>
> > What's more, compiling the same extension with Visual Studio 2005
> > (without using distutils) works fine, the extension is loaded and ran
> > successfully from Python. Any ideas about this error ?
>
> > Eli
>
> Problem solved:http://eli.thegreenplace.net/2008/06/28/compiling-python-extensions-w...

libpython2?.a is now *supplied* with the official CPython distribution
from www.python.org.

The procedure that you followed is described in the manual:
http://docs.python.org/inst/tweak-flags.html#SECTION000622000000000000000

Cheers,
John