gscam rosdep file isn't used if you check out the whole brown-ros-pkg directory

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What steps will reproduce the problem?
1. Get an Ubuntu 10.10 machine with ROS and check out brown-ros-pkg
2. rosmake gscam --rosdep-install

What is the expected output? What do you see instead?

Failed to find rosdep libgstreamer-plugins-base0.10-dev for package gscam on 
OS:ubuntu version:10.10
Failed to find rosdep libgstreamer0.10-dev for package gscam on OS:ubuntu 
version:10.10
WARNING: Rosdeps [u'libgstreamer-plugins-base0.10-dev', 
u'libgstreamer0.10-dev'] could not be resolved

What version of the product are you using? On what operating system?

I checked out all of svn/tags/brown-ros-pkg on Ubuntu 10.10

Please provide any additional information below.

If you check out the entire directory, sometimes ROS seems to think it is a 
stack, even though it has no stack.xml.  If a package is in a stack, its 
rosdep.yaml is ignored.  As a workaround, I copied the same rosdep.yaml to the 
root directory of the repo, and made an empty stack.xml with "<stack></stack>". 
 Then rosdep worked again.

Original issue reported on code.google.com by [email protected] on 18 Apr 2011 at 9:45