DCLMISMATLNK4

Message        <where> "<name>" <modifier>has a type that is not
               allowed because the it has the linkage "<name>".
               Standard linkage will be used.

Description    Using a special linkage places certain restrictions
               on the type of a function's parameters and return
               value.  In general, the type must be a scalar type
               that can be represented by a register or registers on
               this platform.  In cases where some other type is
               used, the compiler will ignore the special linkage
               and use the standard linkage instead.

User Action    Either remove the name from the #pragma use_linkage
               directive that specified the special linkage, or
               modify the type to be acceptable to the special
               linkage.