[resend] libf2c fix for I/O recursion bug

[Jeffrey A Law]

  In message < 9711180543.AA02614@modi.xraylith.wisc.edu >you write:
  > This fix never made into the last 3 snapshots, so I'm resending it.
  > Also just noticed that I had posted to egcs, not egcs-bugs.
  > 
  > Here's the URL:
  > 
  >     http://www.cygnus.com/ml/egcs/1997-Oct/1130.html
Sorry.  It got lost in the shuffle.

Dave Love -- can you forward this to the official f2c folks?  I suspect
they'll be interested in it :-)

jeff