?X: Some versions of Linux include a leading __IO in the symbol name.
?X: HPUX10 reportedly has trailing spaces, though I'm suprised it has
?X: BSD-like output. (AD).
-xxx='[ADTSIW]'
+?X: GNU extension: i is "indirect function"
+xxx='[ADTSIWi]'
if com="$sed -n -e 's/__IO//' -e 's/^.* $xxx *//p'";\
eval $xscan;\
$contains '^fprintf$' libc.list >/dev/null 2>&1; then