PROTOSCOPE3

Message        <Context> the struct type was previously declared in
               this function with prototype scope.  Now it is
               declared with file scope.

Description    This message is generated when the compiler first
               encounters a function prototype that declares a type
               with prototype scope, and then later sees a second
               declaration or definition of that same function with
               the parameter declared using the same type declared
               at file scope.  For example:  void foo(struct S { int
               a; int b;} *s); struct S { int a; int b;} s; void
               foo(struct S *s);

User Action    Declare the type at file scope before the first
               prototype declaration.