MSVC compilation patch: include file-io.h

[Michael Goffioul]

This patch includes file-io.h in file-io.cc. This is required to export 
correctly
the functions defined in that file.

Michael.

Index: src/file-io.cc
===================================================================
RCS file: /cvs/octave/src/file-io.cc,v
retrieving revision 1.181
diff -c -r1.181 file-io.cc
*** src/file-io.cc      27 Oct 2006 01:45:56 -0000      1.181
--- src/file-io.cc      28 Oct 2006 09:14:55 -0000
***************
*** 76,81 ****
--- 76,83 ----
  #include "utils.h"
  #include "variables.h"
  
+ #include "file-io.h"
+ 
  static octave_value stdin_file;
  static octave_value stdout_file;
  static octave_value stderr_file;