src/file-io.cc patch

[John W. Eaton]

On 19-Feb-2003, Albert Chin <address@hidden> wrote:

| src/file-io.cc makes uses of errno but never includes it. This causes
| a failure on Solaris and Tru64 UNIX.
| 
| -- 
| albert chin (address@hidden)
| 
| -- snip snip
| Index: src/file-io.cc
| ===================================================================
| RCS file: /cvs/octave/src/file-io.cc,v
| retrieving revision 1.136
| diff -u -3 -p -r1.136 file-io.cc
| --- src/file-io.cc    2003/02/16 03:24:26     1.136
| +++ src/file-io.cc    2003/02/19 21:31:44
| @@ -49,6 +49,8 @@ Software Foundation, 59 Temple Place - S
|  #include <unistd.h>
|  #endif
|  
| +#include <errno.h>
| +
|  #include "file-ops.h"
|  
|  #include "defun.h"

I used <cerrno> instead, since this is C++, and I think it is
generally better to use the C++ header files that wrap the C header
files.

Thanks,

jwe