can not change MIB_OIDSZ

Dear friends,

I need to encode OID address with size more than 13

14, {OID0(1,3), 6, 1, 4, 1, 129, 242, 60, 50, 1, 1, 1, 1, 0},

Since MIB_OIDSZ is 13 by default, I try to change to 14

#define MIB_OIDSZ 14 /* Max.size of Object ID value */

After changing this, when I try to do SNMP GET, the application stop responding and other app also.

My question is, is it possible to change this value? if yes, how and what other parameters need to be changed?

Thank you