Rockbox and apache license version 2

[BenBrown]

I've recently started trying to bring the android build up to date with the latest android SDK from Google.  However I found out the apkbuilder had become depreciated and is no longer maintained or available in the latest SDK.  The apkbuilder script can be downloaded via "git clone https://android.googlesource.com/platform/sdk".  Where it is found in the apkbuilder directory along with it's license.  After some research I found the main reason it's not available is that it has not been improved to support library builds; see "http://comments.gmane.org/gmane.comp.handhelds.android.devel/134654".  Since Rockbox will never use that feature would it be possible to bring apkbuilder into the rockbox source or more precisely, does the apache version 2 license preclude Rockbox from taking up an old no longer maintained script and using internally?

Edit
I know that section 4 of the license includes a clause for redistribution and or modification as long we adhere to certain rules, such as retaining in the source a copy of the license.  I'm just not sure where Rockbox stands on the issue.

[saratoga]

If this is just a tool and not part of the final build, the exact licensing terms are not very important.  So long as its under any suitable open source license it should be fine for us to include.  We only care about GPLv2+ (that is, both GPLv2 and v3) for the actual builds we distribute because we want the binaries themselves to be GPL.  For things that are not incorporated into the final build, the precise licensing is not very important so long as the terms are not completely unreasonable.