Courtesy of
<http://www.csoft.net/~dummy/robert/software/procmail/mime.shtml>
http://www.csoft.net/~dummy/robert/software/procmail/mime.shtml -- the
following is a patch that needs to be applied to metamail to make the
annoying freopen warning go away. 
*** src/metamail/metamail.c.orig        Thu Dec  5 17:41:32 1996
--- src/metamail/metamail.c     Thu Dec  5 17:41:32 1996
***************
*** 2330,2336 ****
              ConsumeRestOfPart(OutputFP);
      }
  #if !defined(AMIGA) && !defined(MSDOS)
!     if (UsingStandardInput && feof(InputFP) && !freopen("/dev/tty",
"r", stdin)) {
          fprintf(stderr, "Warning: Cannot freopen /dev/tty to stdin");
      } else InputFP = stdin;
  #endif
--- 2330,2336 ----
              ConsumeRestOfPart(OutputFP);
      }
  #if !defined(AMIGA) && !defined(MSDOS)
!     if (!MustNotBeTty && UsingStandardInput && feof(InputFP) &&
!freopen("/dev/tty", "r", stdin)) {
          fprintf(stderr, "Warning: Cannot freopen /dev/tty to stdin");
      } else InputFP = stdin;
  #endif
Don Yeske
Systems Analyst
Northrop Grumman PRB Systems (  <http://www.prb.net/> www.prb.net)
 <mailto:donald_yeske(_at_)prb(_dot_)net> donald_yeske(_at_)prb(_dot_)net