Nothing is added to Include or Libraries when selecting Packages

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Select Pkg-config tab in Project -> Properties -> C/C++ Build -> Settings
2. Check one or more Packages
3. Click Apply, and/or OK

What is the expected output? What do you see instead?
Expected: Include paths and libraries should be updated to comprise the 
required entries as per selected packages
Instead:  Nothing added


What version of the product are you using? On what operating system?
eclipse Indigo 3.7.2-1
eclipse-cdt 8.0.2-1
ubuntu 12.04 32-bit x86

Please provide any additional information below.

Original issue reported on code.google.com by aavonroz...@googlemail.com on 21 Jan 2013 at 3:27