fix build when ENABLE_CLI_INTERACT_AUTH is disabled The session.h defines clientsession.cipher_none_after_auth only when ENABLE_CLI_INTERACT_AUTH is defined, but cli-session.c will always try to set that member. export cipher_none_after_auth all the time.

open(IN,"<crypt.ind");
open(OUT,">crypt.ind.tmp");
$a = <IN>;
print OUT  "$a\n\\addcontentsline{toc}{chapter}{Index}\n";
while (<IN>) {
   print OUT $_;
}
close OUT;
close IN;
system("mv -f crypt.ind.tmp crypt.ind");