[pypy-dev] Problem building C Extension

[Kevin Gill]

On Tue, 14 Dec 2010 13:49 +0200, "Maciej Fijalkowski" <fijall at gmail.com>
wrote:
> Not to comment on issue, but it's actually pretty good that
> zope.interface C speedups don't work. They won't be speedups in pypy
> case even if they did work.
> 

I accept that they may not be speedups. However, I cannot be certain
whether C code  in an egg represents C alternative to python
functionality, or whether the functionality is implemented in C. Perhaps
this information is in distutils (setup.py) - I haven't noticed it.

> On Tue, Dec 14, 2010 at 12:13 PM, Kevin Gill <kevin at movieextras.ie>
> wrote:
> > Hi,
> >
> > I am new to PyPy.
> >
> > I built pypy using...
> >
> > $ python translate.py --opt=jit targetpypystandalone.py
> >
> > When I try to build eggs with C extensions it doesn't work. I am using pip in a virtualenv. The build
> > uses the wrong compiler "cc" instead of "gcc" and does not use CFLAGS.
> >
> > For example:
> >
> > $ pip -v install zope.interface==3.6.1
> >
> > shows this output
> >
> > cc -I/home/kevin/pypp/env/include -c src/zope/interface/_zope_interface_coptimizations.c -o build/temp.linux-x86_64-2.5/src/zope/interface/_zope_interface_coptimizations.o
> > src/zope/interface/_zope_interface_coptimizations.c: In function ‘verifying_changed’:
> > src/zope/interface/_zope_interface_coptimizations.c:1349: warning: assignment makes pointer from integer without a cast
> > cc -shared build/temp.linux-x86_64-2.5/src/zope/interface/_zope_interface_coptimizations.o -o build/lib.linux-x86_64-2.5/zope/interface/_zope_interface_coptimizations.pypy-14.so
> > /usr/bin/ld: build/temp.linux-x86_64-2.5/src/zope/interface/_zope_interface_coptimizations.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC
> > build/temp.linux-x86_64-2.5/src/zope/interface/_zope_interface_coptimizations.o: could not read symbols: Bad value
> > collect2: ld returned 1 exit status
> >
> > I did some digging through the source. I found that the compiler configuration is normally loaded
> > via distutils/sysconfig.py, but that module was effectively disabled in pypy. I cannot override
> > using environment variables for example because the customisation function is as follows:
> >
> > def customize_compiler(options):
> >     """Dummy method to let some easy_install packages that have
> >     optional C speedup components.
> >     """
> >     pass
> >
> > I see from the mailing list that people are compiling C extensions. What am I doing wrong?
> >
> > Thanks
> >
> > Kevin
> >
> > ------------------------------------------------------------
> > Version of pypy that I am using.
> >
> > $ svn info
> > Path: .
> > URL: http://codespeak.net/svn/pypy/trunk
> > Repository Root: http://codespeak.net/svn
> > Repository UUID: fd0d7bf2-dfb6-0310-8d31-b7ecfe96aada
> > Revision: 79796
> > Node Kind: directory
> > Schedule: normal
> > Last Changed Author: afa
> > Last Changed Rev: 79794
> > Last Changed Date: 2010-12-03 21:52:49 +0000 (Fri, 03 Dec 2010)
> >
> >
> >
> >
> >
> > _______________________________________________
> > pypy-dev at codespeak.net
> > http://codespeak.net/mailman/listinfo/pypy-dev
> >
>