If the symbol is undefined after the prelink step, and is not a writable static symbol, it may be subsequently defined during the link step. However, the definition must be exactly the same as the output ESD name. For more information, see the Figure 3.
If you are writing a C application, and the symbol is an long name that was not resolved by automatic library call and for which a RENAME statement with the SEARCH option exists, the symbol is resolved under the short name on the RENAME statement by automatic library call.
See RENAME control statement for a complete description of the RENAME control statement.
Unresolved requests generate error or warning messages to the Prelinker Map.