for func in `cat $1|grep  -o "[^a-zA-Z_0-9]*[a-zA-Z_0-9][a-zA-Z_0-9]*("|grep -o "[a-zA-Z_0-9]*"|grep  -o "[a-zA-Z_][a-zA-Z_0-9]*"|sort -u` ; do man -a $func|col -b|grep "^ \{7\}#include"|sort -u|tr -d ' ' ; done 2>/dev/null