[CMake] Problems with FindPythonInterp

[Yngve Inntjore Levinsen]

Dear all,

I have some configuration scripts in python that needs to be run for my 
project, so I use the FindPythonInterp package. This has nicely found the 
version 2.7 on my system so far, but now it suddenly finds /usr/bin/python 
which is a soft link to version 3.2. My script doesn't work with python 3.

First: Is it possible to set a requirement that it should be python version 2?

Second: This for some weird reason only happens on my desktop, even though I 
have pretty much exactly the same setup on my laptop. On my laptop it finds
/usr/bin/python2.7 (as it always has). They both have the same python versions 
installed (2.7 and 3.2), and they both have the same cmake version installed 
(2.8.6). I am running Arch Linux.

On my laptop:
-- Found PythonInterp: /usr/bin/python2.7
On my desktop:
-- Found PythonInterp: /usr/bin/python (found version "3.2.2")

I'm sure there must be some differences in what's installed on the two systems,
but I cannot figure out what.

I tried 
find_package(PythonInterp 2.7 REQUIRED)
but that still found the 3.2 version and only commented that 2.7 was required.

Let me know if I can provide further information.

Cheers,
Yngve