Let Eclipse know files included via -include gcc flag

Question

I need to include a configuration header file (config.h), containing system-wise defines. Instead of including it in every source file, I used the -include gcc flag, like so:

-include src/config.h

This works as expected, however Eclipse does not know that config.h is indeed included in every source file, so, whenever a block like this is present:

#ifdef MACRO_DEFINED_IN_CONFIG_H
// Code block
#endif

everything is greyed-out.

Is there a workaround for this? Thank you.

Answer 1

You need to have those definitions in the project properties:

not in the file. Then eclipse will call the gcc wirh the -D.... s