I get the following error after passing the configuration of Django-cms. A couple of non-python packages seem to be missing.
EnvironmentError: Pillow is not compiled with PNG support, see 'Libraries installation issues' documentation section: http://djangocms-installer.readthedocs.org/en/latest/libraries.html.
Pillow is not compiled with JPEG support, see 'Libraries installation issues' documentation section: http://djangocms-installer.readthedocs.org/en/latest/libraries.html
From where and how do I install these packages? And in which directory do I install them? The Python root directory or the django-cms virtualenv lib?