[Bug-gnuzilla] Compiling GNU IceCat 24.0 Failed, no "Virtualenv population script"

[Ian Egland]

I'm new to building software, so please forgive me if I'm making a dumb
mistake.

I'm trying to build IceCat 24.0 on gNewSense 3. When I run "configure",
I get the following error: 
---
configure: error: Unable to find Virtualenv population script. In order
to build, you will need mozilla-central's virtualenv.

If you are building from a mozilla-central checkout, you should never
see this message. If you are building from a source archive, the source
archive was likely not created properly (it is missing the virtualenv
files).

If you have a copy of mozilla-central available, define the
MOZILLA_CENTRAL_PATH environment variable to the top source directory of
mozilla-central and relaunch configure.
---
I'm not sure where to get mozilla-central... but I figured I should ask
about it because the message says "the archive was likely not created
properly".