mDashExport not compiling with 1.2.16 what is the replacement?

Due to the recent ca.pem file issue we are migrating to 1.2.16.
We are getting the following error:
error: ‘mDashExport’ was not declared in this scope
It appears to be due to the version change but perhaps I am lacking a library.
Any help would be greatly appreciated!

We’d be very happy to pay for consulting.