Building things with setup.py

James Stroud jstroud at mbi.ucla.edu
Fri Sep 22 05:47:06 CEST 2006


Robert Kern wrote:
> James Stroud wrote:
> 
>> Hello All,
>>
>> This is annoying. I am trying to build scipy right now but every .so 
>> file requires my adding "-lpython2.5 -lpthread -lm -lutil -ldl 
>> -shared" to the ld flags.
> 
> 
>> I'm running Linux FC4 on a dual intel p4 (~3.2 GHz) with sundry 
>> libraries in non-standard places. Is this non-standard part what's 
>> killing me?
> 
> 
> It's possible that distutils is not finding the information about how 
> the python interpreter was built. Did you build your own python(1)? Is 
> the information in $PREFIX/lib/python2.4/config/ accurate?
> 

I did build my own python 2.5, yesterday, requiring me to rebuild all 
extensions. Everything I do is compiled by hand as joe-user. I'm in a 
situation where I can't do RPM (and I don't have root on my work machine 
(theoretically ;-)) so, to be a good joe-user, everything I add goes 
into the prefix:

$HOME/Programs

This is the listing from $HOME/Programs/lib/python2.5/config:

euler 6% ls
total 4092
    8 config.c       12 install-sh*       44 Makefile       8 python.o 
    8 Setup.config
    8 config.c.in  3960 libpython2.5.a    12 makesetup*    24 Setup 
    8 Setup.local

The build process, by the way, required my copying libpython2.5.a to 
$HOME/Programs/lib.

The text files Setup.config and Setup.local do not seem to have terribly 
specific information in them. Which file in particular should I inspect?

I did not capture output from the build and I could not find a file with 
the word "log" in it that appears to be a build log. The jist of the 
problem is that first it can't find symbols from libpython2.5, then from 
  libthread, etc. Then, it complains about no "MAIN__" when linking the 
.so files with g77 and no "main" with gcc (which is curious), so I must 
include the -shared flag, after including -llibrary type flags for all 
of the libraries it doesn't know about.

If its necessary, I can run setup.py build again and send the output to 
a file and post that to scipy-dev if you think it might be helpful.

James

-- 
James Stroud
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095

http://www.jamesstroud.com/



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