fle_crypto.h exposes an inline function called parseFromCDR which consumes a Validated<BSONObj> out of a ConstDataRange. The Validated<BSONObj> type requires a template specialization which is provided from rpc/object_check.h. In order to make this invocation work, either every caller of parseFromCDR must have access to the symbols for the template specialization.

These symbols are provided by including object_check.h into fle_crypto.cpp.However, when using fvisibility-inlines-hidden, the symbols are hidden from the shared object's export table.