rb_struct_define 295 ext/etc/etc.c      sPasswd =  rb_struct_define("Passwd",
rb_struct_define 323 ext/etc/etc.c      sGroup = rb_struct_define("Group", "name", "passwd", "gid", "mem", 0);
rb_struct_define 1372 process.c          S_Tms = rb_struct_define("Tms", "utime", "stime", "cutime", "cstime", 0);