[ubuntu-in] cpp and gcc multiple packages

[Narendra Diwate]

A linux question in general.

I have Debian (LMDE tracking Testing) as main OS. I was looking at the
packages and find cpp and gcc versions 4.6 and 4.7 installed. Additionally
its various associate packages like "base" and "gcj" are also in multiple
versions.

I find something similar in Crunchbang that is also tracking Debian Testing.

On both, I do not have any non standard sources, nor do i have installed
any non standard packages, except Opera Browser on LMDE.

Why/How did I end up with 2 versions of the same package?
Is this common with other users as well? Is it possible to safely remove
one of them?

-- 
Regards

Narendra Diwate
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