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

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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