Re: [Discuss-gnuradio] Cygwin Python Import Error

[Don Ward]

"Brian Padalino" <address@hidden> wrote:

> I had an old version of GNURadio installed on my cygwin setup, but
> decided to get the current development version in the svn repository.
>
> After checking it out, bootstrapping, configuring and starting a make
> - I had an error where the linker complained about omnithread being
> made into a static library and not shared followed by a whole bunch of
> missing omnithread declarations.
>
> I got around this by doing --enable-shared=omnithread at configure,
> and it went past that point.

This has the same effect as --enable-shared=no, which won't work.  (The 
documentation on the --enable-shared option is misleading.)

>  Once the build was successful, I went
> and did an make install and tried to run python and import gr.  Here
> are the results:
>
> $ python
> Python 2.4.3 (#1, May 18 2006, 07:40:45)
> [GCC 3.3.3 (cygwin special)] on cygwin
> Type "help", "copyright", "credits" or "license" for more information.
> > > > from gnuradio import gr
> Traceback (most recent call last):
>  File "<stdin>", line 1, in ?
>  File "/usr/local/lib/python2.4/site-packages/gnuradio/gr/__init__.py",
> line 27, in ?
>    from gnuradio_swig_python import *
>  File 
> "/usr/local/lib/python2.4/site-packages/gnuradio/gr/gnuradio_swig_python.py",
> line 23, in ?
>    from gnuradio_swig_py_runtime import *
>  File 
> "/usr/local/lib/python2.4/site-packages/gnuradio/gr/gnuradio_swig_py_runtime.py",
> line 6, in ?
>    import _gnuradio_swig_py_runtime
> ImportError: No module named _gnuradio_swig_py_runtime
>
> I have 2 files in /usr/local/lib/python2.4/site-packages/gnuradio/gr
> with the name _gnuradio_swig_py_runtime - one an ar archive and the
> other a libtool library file.

As expected, no .dll files are produced when --enable-shared is turned off.

When the omnithread library was made into a separate module, some magic 
needed to make it work on windows was omitted.  These are supplied in the 
attached .patch files (to use: cd gnuradio; patch -p0 -i foo.patch).  Rerun 
./bootstrap and ./config after applying the patches.  See ticket #138 at 
www.gnuradio.org/trac for more details.

-- Don W.

omni070211.patch
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mblock070211.patch
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