Can I build PEX with system wide site-packages?

I build an app for Linux that uses Python `gobject` bindings provided by my system (Debian in my case). It's in `/usr/lib/python2.7/dist-packages`.
When I start pex with `--inherit-path` it prints:
```
Scrubbing from site-packages: /usr/lib/python2.7/dist-packages
```
When I try to import `gobject` i get:
```
>>> import gobject
Traceback (most recent call last):
  File "<console>", line 1, in <module>
ImportError: No module named gobject
```
I want to distribute my app as a `deb` and resolve system wide dependencies when installing it by `dpkg`.
Is there any way I can use system provided lib in my PEX?