[CentOS] An m4 question

Fri Sep 16 17:05:29 UTC 2016
m.roth at 5-cent.us <m.roth at 5-cent.us>

Does anyone know what, if any, the limits are in m4 on the length of
strings, such as in defines?

That is, if I were to do
define('LINUX', 'machine1, machine2,...machine120...')

Is there a limit to how many I could put in that one define?