diff -up vsftpd-2.1.0/ptracesandbox.c.warnings vsftpd-2.1.0/ptracesandbox.c
--- vsftpd-2.1.0/ptracesandbox.c.warnings	2009-01-15 15:31:26.000000000 +0100
+++ vsftpd-2.1.0/ptracesandbox.c	2009-01-15 15:32:56.000000000 +0100
@@ -1146,6 +1146,7 @@ int
 ptrace_sandbox_run_processes(struct pt_sandbox* p_sandbox)
 {
   (void) p_sandbox;
+  return -1;
 }
 
 void
diff -up vsftpd-2.1.0/sysdeputil.c.warnings vsftpd-2.1.0/sysdeputil.c