Re: wxPython Phoenix build fail ("Could not build python extensions"?) in pyenv 3.5.1 on Linux

Thanks. Same error. BTW, if you don't know already, "pyenv" installs a 
fully built installation of Python just as if I had downloaded the source 
code it myself from the Python site and built then installed.

There's things like *"err: /usr/bin/ld: cannot find -lpython3.5"* in 
http://files.djbarney.org/config.log.txt

Look at around line 102 ... 

*"-L/home/michaelzfreeman/.pyenv/versions/3.5.1/lib', '-lpython3.5'] not 
found".*If I'm correct, it's like the build script is looking for what 
should be the system libraries ("libpython3.5-dev") in the virtual 
environment and not finding them. I'll try setting some system variables to 
point the build to the correct python libraries.

So where are all the Linux experts in this forum ? I really need to get 
this build working.

MichaelZFreeman

On Friday, September 2, 2016 at 12:44:24 AM UTC+1, Robin Dunn wrote:
>
> I don't know anything about pyenv, but is there any reason to not use 
> Python 3.5's built-in virtual environment tool?  Make sure that Ubuntu's 
> Python 3.5 package and the corresponding -dev package are installed, 
> download a Phoenix source tar file, and then try something like this:
>
> mkdir ~/tmp-phoenix-build
> cd ~/tmp-phoenix-build
> pyvenv-3.5 my-py35
> source my-py35/bin/activate
> pip install -U pip setuptools six wheel 
> pip wheel wxPython_Phoenix-3.0.3.dev2472+78ae39a.tar.gz
>
> You should end up with a .whl file in ~/tmp-phoenix-build which you can 
> install in this or other compatible Python 3.5 environments (real or 
> virtual) on your machine.
>
> Robin
>
>
> Michael Freeman wrote:
>
> OK. I looked at this again. 
>
> First I don't know how to confirm that my Linux (Ubuntu Xenial) Python waf 
> build system (in a "pyenv") is actually fully functional. This should be 
> done first as I've only ever installed pure Python modules that need no 
> compiling. It could be A. a problem with my Python install. B. Problem with 
> system gcc compiler ... and any number of other system problems. So is 
> there a waf test file, or at least a known good compile on Linux of some 
> other Python module ?
>
> But meanwhile here's a little sleuthing. The "Checking for header 
> Python.h: :-(" I thought might be a massive clue. Thought I'd missed the 
> obvious ! But Python system "dev" package is installed. But ...
>
> "python-config --includes
> -I/home/michaelzfreeman/.pyenv/versions/3.5.1/include/python3.5m 
> -I/home/michaelzfreeman/.pyenv/versions/3.5.1/include/python3.5m"
>
> Correct path to "Python.h".
>
> Then it gives the "Getting pyext flags from python-config: Could not build 
> python extensions" ... but ...
>
> "python-config --ldflags
> -L/home/michaelzfreeman/.pyenv/versions/3.5.1/lib/python3.5/config-3.5m 
> -L/home/michaelzfreeman/.pyenv/versions/3.5.1/lib -lpython3.5m -lpthread 
> -ldl  -lutil -lm  -Xlinker -export-dynamic"
>
> "pyext" is installed and I can see it.
>
> But looking at "waf" config.log: http://files.djbarney.org/config.log
>
> ... (that I did not see before, don't why this it not reported to console) 
> shows the real meat of the errors starting at line 418 ...
>
> "['/usr/bin/g++', '-shared', '-pthread', 'test.cpp.1.o', '-o', 
> '/tmp/pip-build-k2pgcq1x/wxPython-Phoenix/build/waf/3.5/.conf_check_9814a9ffc41959a7044afc7703702a3d/testbuild/
> testprog.cpython-35m-x86_64-linux-gnu.so', '-Wl,-Bstatic', 
> '-Wl,-Bdynamic', '-L/home/michaelzfreeman/.pyenv/versions/3.5.1/lib', 
> '-L/home/michaelzfreeman/.pyenv/versions/3.5.1/lib/python3.5/config-3.5m', 
> '-lpython3.5m', '-lpthread', '-ldl', '-lutil', '-lm']
> err: /usr/bin/ld: 
> /home/michaelzfreeman/.pyenv/versions/3.5.1/lib/libpython3.5m.a(pylifecycle.o): 
> relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making 
> a shared object; recompile with -fPIC
> /home/michaelzfreeman/.pyenv/versions/3.5.1/lib/libpython3.5m.a: error 
> adding symbols: Bad value
> collect2: error: ld returned 1 exit status"
>
> Could be some kind of 64 bit/32bit mismatch ? But I'm wildly guessing here.
>
> So I need to find a way of testing my build environment first before 
> proceeding (see top).
>
> Michael Z Freeman
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