Eclipse Indigo CDT: Function could not be resolved

Question

This feels silly, but its been 2 days...somewhere after upgrading from Ubuntu 10.04 to 10.11 and from Eclipse Helios to Eclipse Indigo, I got stuck with the following problem:

Answer 1

I have experienced similar problems of the CDT reporting errors even though the code compiled fine within Eclipse Indigo.

Project > Properties > Settings > Binary Parsers > "GNU Elf Parser"

helped in my case. I had the "Elf Parser" checked.