make: unifdef for other OSes (undefined)

*** 146,161 ****
                          target->stat.time = file_is_dir;
                  } else {
                          /* target->stat.time = buf.st_mtime; */
  /* BID_1129806 */
  /* vis@nbsp.nsk.su */
- #if defined(linux)
-                         timestruc_t ttime = { buf.st_mtime, 0 };
-                         target->stat.time = MAX(ttime, file_min_time);
- #else
                          target->stat.time = MAX(buf.st_mtim, file_min_time);
- #endif
                  }
          }
          if ((target->colon_splits > 0) &&
              (get_prop(target->prop, time_prop) == NULL)) {
                  append_prop(target, time_prop)->body.time.time =
--- 146,156 ----
*** 188,203 ****
                  target->stat.time = file_is_dir;
          } else {
                  /* target->stat.time = buf.st_mtime; */
  /* BID_1129806 */
  /* vis@nbsp.nsk.su */
- #if defined(linux)
-                 timestruc_t ttime = { buf.st_mtime, 0 };
-                 target->stat.time = ttime;
- #else
                  target->stat.time = MAX(buf.st_mtim, file_min_time);
- #endif
          }
  }
  
  
  /*
--- 183,193 ----