Structure name in method type?

[Laurent Julliard]

Looking at the
code of the GNU objective C library it seems that C structures
can be specified in the method type along with their name (e.g
{"MyStruct"=ff} for a structure named MyStruct and made of two
floats. However I have never seen this label in any of the structures
commonly used as arguments or return value in GNUstep like NSRange,
NSPoint, NSRect, NSSize,... in the GNUstep libs).

Does anyone konw how to make the struct name appear in the signature? Or
is it that the GNU Objective C compiler can't do it?

Laurent