Weird "undefined reference to..." problem
I remember that for one project I have seen some errors (not at building phase) when I open some .c source files. Anyway, I close that source files and then I deleted the errors and then there was no build error.
I don’t know if this will work for you, but you can try:
- close the files that have errors in editor window (C/C++ Perspective). you can close all files.
- in “Problems” window clear all existing errors
- build the project
From what I now, the red highlited functions are reported as errors by Eclipse Code Analisys (Codan) and not by compiler/linker.
What is more intersting is the location where the compiler found the error (if there are any compiling errors).