fsizes
struct fsizes *fsz_next;
} *fsizes;
struct fsizes *fp;
for (fp = fsizes; fp; fp = fp->fsz_next) {
struct fsizes *fp, **fsp;
for (fsp = &fsizes; (fp = *fsp); fsp = &fp->fsz_next) {
for (fp = fsizes; fp != NULL; fp = fp->fsz_next) {