problem compiling extensions with mingw

[eliben]

Hello,
I'm trying to compile the minimal example from
http://en.wikibooks.org/wiki/Python_Programming/Extending_with_C with
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

 

[eliben]

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-with-distutils-and-mingw/

 

[John Machin]

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

 

[eliben]

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

I'm using ActiveState's distribution, because I was told that it comes
with more precompiled win32 goodies out of the box.

The procedure that you followed is described in the manual:http://docs.python.org/inst/tweak-flags.html#SECTION00062200000000000...

Thanks, I didn't notice it

Eli