-void(*p_if_freenameindex)(struct if_nameindex*) = if_freenameindex;
-char*(*p_if_indextoname)(unsigned,char*) = if_indextoname;
-struct if_nameindex*(*p_if_nameindex)(void) = if_nameindex;
-unsigned(*p_if_nametoindex)(const char*) = if_nametoindex;
+{void(*p)(struct if_nameindex*) = if_freenameindex;}
+{char*(*p)(unsigned,char*) = if_indextoname;}
+{struct if_nameindex*(*p)(void) = if_nameindex;}
+{unsigned(*p)(const char*) = if_nametoindex;}