Re: problem compiling extensions with mingw

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  • eliben
    #1

    Re: problem compiling extensions with mingw

    On Jun 27, 3:10 pm, eliben <eli...@gmail.c omwrote:
    Hello,
    I'm trying to compile the minimal example fromhttp://en.wikibooks.or g/wiki/Python_Programm ing/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.win3 2-2.5\Release\hel lo.def
    d:\mingw\bin\gc c.exe -mno-cygwin -shared -s build
    \temp.win32-2.5\Release\hel lomo
    dule.o build\temp.win3 2-2.5\Release\hel lo.def -LC:\Python25\li bs -LC:
    \Python25\P
    Cbuild -lpython25 -lmsvcr71 -o build\lib.win32-2.5\hello.pyd
    build\temp.win3 2-2.5\Release\hel lomodule.o:hell omodule.c:(.tex t+0x3e):
    undefined
    reference to `_imp___Py_None Struct'
    build\temp.win3 2-2.5\Release\hel lomodule.o:hell omodule.c:(.tex t+0x46):
    undefined
    reference to `_imp___Py_None Struct'
    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:
    Compiling Python extensions with distutils and MinGW - Eli Bendersky's website
    http://eli.thegreenplace.net/2008/06/28/compiling-python-extensions-with-distutils-and-mingw/

    Tags: None
    • John Machin
      #2
      Re: problem compiling extensions with mingw

      On Jun 28, 3:41 pm, eliben <eli...@gmail.c omwrote:
      On Jun 27, 3:10 pm, eliben <eli...@gmail.c omwrote:
      >
      >
      >
      Hello,
      I'm trying to compile the minimal example fromhttp://en.wikibooks.or g/wiki/Python_Programm ing/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.win3 2-2.5\Release\hel lo.def
      d:\mingw\bin\gc c.exe -mno-cygwin -shared -s build
      \temp.win32-2.5\Release\hel lomo
      dule.o build\temp.win3 2-2.5\Release\hel lo.def -LC:\Python25\li bs -LC:
      \Python25\P
      Cbuild -lpython25 -lmsvcr71 -o build\lib.win32-2.5\hello.pyd
      build\temp.win3 2-2.5\Release\hel lomodule.o:hell omodule.c:(.tex t+0x3e):
      undefined
      reference to `_imp___Py_None Struct'
      build\temp.win3 2-2.5\Release\hel lomodule.o:hell omodule.c:(.tex t+0x46):
      undefined
      reference to `_imp___Py_None Struct'
      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...n-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:
      404 Not Found
      http://docs.python.org/inst/tweak-flags.html#SECTION000622000000000000000


      Cheers,
      John

        Comment

        • eliben
          #3
          Re: problem compiling extensions with mingw

          On Jun 28, 8:20 am, John Machin <sjmac...@lexic on.netwrote:
          On Jun 28, 3:41 pm, eliben <eli...@gmail.c omwrote:
          >
          >
          >
          On Jun 27, 3:10 pm, eliben <eli...@gmail.c omwrote:
          >
          Hello,
          I'm trying to compile the minimal example fromhttp://en.wikibooks.or g/wiki/Python_Programm ing/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.win3 2-2.5\Release\hel lo.def
          d:\mingw\bin\gc c.exe -mno-cygwin -shared -s build
          \temp.win32-2.5\Release\hel lomo
          dule.o build\temp.win3 2-2.5\Release\hel lo.def -LC:\Python25\li bs -LC:
          \Python25\P
          Cbuild -lpython25 -lmsvcr71 -o build\lib.win32-2.5\hello.pyd
          build\temp.win3 2-2.5\Release\hel lomodule.o:hell omodule.c:(.tex t+0x3e):
          undefined
          reference to `_imp___Py_None Struct'
          build\temp.win3 2-2.5\Release\hel lomodule.o:hell omodule.c:(.tex t+0x46):
          undefined
          reference to `_imp___Py_None Struct'
          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...n-extensions-w...
          >
          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-fl...62200000000000...
          >
          Thanks, I didn't notice it :-)

          Eli



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