multiple definition error in MCC/Linker (possible bug?)

[Alan Anderson]

Originally Posted by wun

I have just been working on my code, when all of a sudden I started getting multiple definition errors from the linker on a variable named drive_mode.
I searched through all the files involved (grep drive_mode {*.c,*.h}), and found only one definition.

That symptom points to one of two things. Either you have more than one #include for the same .h file (and you're not "protecting" it with #ifdef), or you have added the same .c file to the project twice. The first problem would show up in the code. The second problem would not. Try looking at the project window and make sure you only have each file in there once. If something is duplicated, remove the extra one.