fixed problem with sun CC compiler

include/vtkSetGet.hh

@@ -90,8 +90,7 @@ type Get##name () { \
 void Set##name (char* _arg) \
   { \
   if (Debug)   cerr << "Debug: In " __FILE__ << ", line " << __LINE__ << "\n" << this->GetClassName() << " (" << this << "): setting " << #name " to " << _arg << "\n\n"; \
-  if ( name && _arg ) \
-    if ( !strcmp(name,_arg) ) return; \
+  if ( name && _arg && (!strcmp(name,_arg))) return; \
   if (name) delete [] name; \
   if (_arg) \
     { \