From mboxrd@z Thu Jan  1 00:00:00 1970
From: Cyril Roelandt <tipecaml@gmail.com>
Subject: Re: libxml2-python
Date: Thu, 07 Mar 2013 01:47:46 +0100
Message-ID: <5137E3B2.4090801@gmail.com>
References: <201303062343.03155.andreas@enge.fr>
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To: Andreas Enge <andreas@enge.fr>
Cc: bug-guix@gnu.org

On 03/06/2013 11:43 PM, Andreas Enge wrote:
> xorg-server requires mesa, and mesa requires python and libxml2, more
> exactly libxml2-python.
>
> This is supposed to be set up the python way using
>     python setup.py build install
> which already does not work manually:
>     failed to find headers for libxml2: update includes_dir
> Supposedly, one needs to specify the path to libxml2.
>

 From setup.py:

# those are examined to find
# - libxml2/libxml/tree.h
# - iconv.h
# - libxslt/xsltconfig.h
includes_dir = [
"/usr/include",
"/usr/local/include",
"/opt/include",
os.path.join(ROOT,'include'),
HOME
];

You could patch setup.py to add the right path. Or you could run 
"configure" in libxml2 with "--prefix=<yourprefix>", then cd into the 
"python" directory, and ROOT will be set to <youprefix> in setup.py.

> Alternatively, one can run setup.py during the compilation of libxml2.
> Trying this by hand results in
>     copying build/lib.linux-x86_64-2.7/libxml2mod.so ->
> /usr/local/lib/python2.7/dist-packages
>     error: /usr/local/lib/python2.7/dist-packages/libxml2mod.so: Permission
> denied
> Clearly, we do not want python modules to end up in /usr/local.
>

Try:

$ python setup.py install --prefix=/path/to/foo/bar

You may have to adjust $PYTHONPATH to something like:

/path/to/foo/bar:$PYTHONPATH

for this to work.


Cyril.