This commit detect when a statement is evaluated with PyRun_String run
with Py_eval_input. This seems to generate a Syntax Error. Thus if
an exception with Syntax Error is generated with Py_eval_input,
the python interpreter does a second pass with Py_single_input.
The string err is set appropriatly, out has to be checked.

This does not affect the compilation on Ubuntu 10.04.

This reverts commit 8fc08b88.

    Throwing an exception in the C/Python API makes the python interpreter
    terminate. The correct way is to catch C++ exception and to raise python
    errors with the same message.

Remove the command MAKE_DIRECTORY that has been moved in python.cmake

- correct the mkdir command to make it cross-platforms
- remove the '/' in the module name (forbidden in win32 systems)

This reverts commit 037d7b9cbba692c3a666030faf8283c89704a277.

Because of _dgesvd_, the module wrap needs to link with lapack

    This reverts commit b055ba73.
    This commits seems to have side effects. Revert it temporarily.

    Use PyObject_IsTrue to test a boolean in C/Python API,
    call print as a function.

    Python packages are now installed in site-packages instead of dist-packages.