Overriding static variables from Eclipse

Not that I'm a software person but are those variables or C macros (all caps and their location in an include file makes them look like macros)? C macros look something like this "#define <some macro name> <optionally some macro value>". If those are macros you should be able to overwrite them using the -D flag in the project settings. You can learn more by searching the gcc documentation about the -D flag.