[exim] Max length of a filter line

Hi,
we are facing a limit in the filter line limit, returning this error:

Filter error: string is too long in line 6 of filter file (max = 1024 chars)

when indeed the line is longer. Is there a way to increase that length
limit (possibly without touching src/&filters.x where it seems to be the
limit hardcoded :) ) ?

Cheers,
--
Sandro Tosi
Product Engineer
Shared Hosting Products
R&D | Dada.pro
eml sandro.tosi@???