The defines in `gravity_optionals.h` are Always Defined

[jockm]

In optionals gravity_optionals.h you will find the following (lines 12-14):

#ifndef GRAVITY_INCLUDE_MATH
#define GRAVITY_INCLUDE_MATH
#endif

So if moth hasn't been defined, then math is defined, if you use optionals, which are included by default. So the mere act of including gravity_optionals.h forces math to be included.

This is also true of GRAVITY_INCLUDE_JSON, GRAVITY_INCLUDE_ENV, and GRAVITY_INCLUDE_FILE

If they aren't optional, then there is no need for the #ifdefs, if they are optional then you shouldn't force them. Either way this should probably be changed