609    AstSystemType oldsys;         /* System before clearing */  in ClearSystem()  local
618    oldsys = astGetSystem( this_frame );  in ClearSystem()
627    if( newsys != oldsys ) {  in ClearSystem()
647       OriginSystem( this, oldsys, "astClearSystem", status );  in ClearSystem()
3286 static void OriginSystem( AstSpecFrame *this, AstSystemType oldsys,  in OriginSystem()  argument
3341       if( oldsys != astGetSystem( this ) ) {  in OriginSystem()
3355          astSetSystem( sf2, oldsys );  in OriginSystem()
4126    AstSystemType oldsys;         /* Original System value */  in SetSystem()  local
4135    oldsys = astGetSystem( this_frame );  in SetSystem()
4141    if( oldsys != newsys ) {  in SetSystem()
4156       OriginSystem( this, oldsys, "astSetSystem", status );  in SetSystem()