Hi,

I often have the problem that I have to use cross references between files:

e.g.
A.top

B.top

There is no way I know of to compile them without splitting them, because regardless which file is listed first in the files text file, one macro is always not defined.

Is there a chance of either allowing macro declarations (telling the compiler that the macro will be defined later) or making the compiler scanning all macros first and and then compiling everything again?

Maybe.  But presently you can awkwardly manage any cycle because rules are functions (no arguments) and global variables are arguments. So you can use ^response(~mytopic.b1)  and put code in that topic at that rule.  Similarly, of course, you can embed the equivalent of rules in a function because you can use ^if(PATTERN ....) ...