is it possible to make file searching algorithm for "file" directive same like for "include" directive? i mean to search not only relative to current directory, but also relative to directory of currently processed file.

simple example:

A.
a\a.asm has:

b\b.inc has:

we have file:
b\c.inc
and it included ok

B.
a\a.asm has:

b\b.inc has:

we have file:
b\c.bin
and it will be not included - "file not found" error pops

currently i use full path in this situation, but do not like it
thanks