Errors and builds?
Deiter and Terek, thanks for the feedback.
I did try reindexing - that did not help. I also updated ac6 (although the only things out of date were the GIT interface).
I also deleted the entire project and regenerated the code from Cube, just to make sure I did not alter the code in any way.
The solution (which is not really a solution at all) I went with was:
Window -> Preferences -> C/C++ -> Code Analysis -> Syntax and Semantic Errors: OFF
from http://stackoverflow.com/questions/8148235/eclipse-cdt-shows-semantic-errors-but-compilation-is-ok
While the solution is not really a solution, the error is also not really an error.
So the error is no longer generated.
-Matt