Re: [Discuss-gnuradio] Error installing wxPython on CYGWIN in Windows XP

[Don Ward]

Shabbir Ahmed wrote:

> A. Managed to install and work wxWidgets but I just cannot manage 
> wxPython.
> Anyhow the following is how I managed wxWidgets and errors found in trying
> to install wxPython.
>
> B. Referring to http://gnuradio.org/redmine/wiki/gnuradio/WxPythonCygwin
>
> STEP 4: ( I had to add a few more lines that I took from wxPython's src
> website
> http://www.wxpython.org/BUILD.html .. so now we have)
>
> CC="gcc -mno-cygwin -mwindows"  \
> CXX="g++ -mno-cygwin -mwindows" \
> LDFLAGS="-mno-cygwin -mwindows" \

The -mno-cygwin option says to create a native Windows version rather than a 
Cygwin version, which gets around the winsock.h vs. select.h problem.  But 
it is not clear whether a non-Cygwin extension will work with the Cygwin 
version of Python.

> ../configure \
>     --with-msw \
>     --build=i686-pc-mingw32 \
>     --prefix=/usr/local \
>
> STEP 4a, 5 and 6: Remains the same.
>
> STEP 7: (there is slight change the cygwx*.dll files are now wx*.dll 
> files..
> so we have)
>
> mv /usr/local/lib/wx*.dll /usr/local/bin
>
> STEP 8: so now when you try step 8 it WORKS!
>
> STEP 9: (But now I am stuck in STEP 9 and cannot move forward tried all
> possibilities the following is the code I am using and the 
> output+errors...)
>
> python setup.py build_ext --inplace WXPORT=msw COMPILER=mingw32
> BUILD_GLCANVAS=0 BUILD_ACTIVEX=0 UNICODE=0
> WX_CONFIG="bash.exe -e
> /usr/local/bin/wx-config"
>
> OUTPUT+ERROR
>
> WARNING: WXWIN not set in environment. Assuming '..'
> Preparing CORE...
> Preparing STC...
> Preparing GIZMOS...
> running build_ext
> building '_core_' extension
> gcc -mno-cygwin -mdll -O -Wall -DSWIG_TYPE_TABLE=_wxPython_table
> -DSWIG_PYTHON_OUTPUT_TUPLE -DWXP_USE_THREAD=1 -UNDEBUG
> -DWXUSINGDLL
> -D__WXMSW__ -Iinclude -Isrc -I/usr/local/lib/wx/include/msw-ansi-release-2.8
> -I/usr/local/include/wx-2.8 -I/usr/include/python2.5 -c src/helpers.cpp -o
> build/temp.cygwin-1.7.1-i686-2.5/src/helpers.o -mthreads -O3
>
> In file included from /usr/include/python2.5/Python.h:57,
>                  from src/helpers.cpp:15:
> /usr/include/python2.5/pyport.h:257:24: sys/select.h: No such file or
> directory

Your Cygwin version of Python wants to use select.h, which doesn't exist in 
you non-Cygwin (i.e., -mno-cygwin) environment.  Again, I don't know if it 
is possible to build non-Cygwin extensions for a Cygwin Python.

The good news is that this problem has been reported on the wxWidgets bug 
tracker and is being worked on (see http://trac.wxwidgets.org/ticket/11626). 
The bad news, is that the supposed "correct" answer is to modify the code 
(if possible) to use posix networking calls in place of the Windows calls.

-- Don W.