[C++-sig] Wrong python found

[David Abrahams]

John J Lee <jjl at pobox.com> writes:

> Would be nice if boost python could find the right python executable on
> systems like mine -- I have 2.2 installed, but python is a link to 2.1, so
> unless I hack python.jam to set PYTHON = /usr/bin/python2.2 I get link
> errors on running the tests.

You don't need to (and should not) hack python.jam.

If you have an executable called "python" which is python2.2, it is
probably installed in /usr/python2.2/bin or usr/local/python2.2/bin.
In that case all you need to do is to set PYTHON_ROOT as described
here:

      http://www.boost.org/libs/python/doc/building.html

You can set it in your environment, or you can set it on your bjam
command-line, e.g.:

      bjam -sPYTHON_ROOT=/usr/local/Python2.2 ...

Failing that, you can still set PYTHON on your command-line or in your
environment, e.g.

      bjam -sPYTHON=/usr/bin/python2.2

> A PYTHON_BIN would do the trick, but I think if PYTHON_VERSION is set,
> /usr/bin/python2.2 should be preferred over /usr/bin/python.

I guess so, but where should the smarts stop?  Eventually some
reasonable Python installations will be outside the system's ability
to automatically infer what to do.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com