diff/diff.c: function "error" prototype missing

[Conrad T. Pino]

Hi All,

diff\diff.c(603) : warning C4013: 'error' undefined; assuming extern returning 
int

diff\diff.c line 603: error (0, 0, "warning: did not set stdout to binary 
mode");

lib\error.h line 40: void error (int, int, const char *, ...)

Nothing in "diff" folder includes "error.h".

File "diff/diff.c" has changed slowly recently:

   ----------------------------
   revision 1.14
   date: 2004/03/22 15:37:33;  author: dprice;  state: Exp;  lines: +3 -1
   Merge changes from 1.11.x.
   ----------------------------
   revision 1.13
   date: 2002/04/29 01:41:15;  author: dprice;  state: Exp;  lines: +6 -1
   branches:  1.13.4;
   * diff.c: Use the system fnmatch.h when present.
   ----------------------------
   revision 1.12
   date: 2001/03/24 22:58:30;  author: noel;  state: Exp;  lines: +1 -1
   * diff.c: fix typo in usage string.
   ----------------------------
   revision 1.11
   date: 1999/12/30 02:53:37;  author: kingdon;  state: Exp;  lines: +9 -7
        * diff.c (compare_files): Use explicit braces with if-if-else, per
        GNU coding standards and gcc -Wall.
   ----------------------------

IMO "diff/diff.c" hasn't had a pull up of GNU diffutils in a while.  I see
"diff.c" from "diffutils-2.8.1" package does include "error.h" file.

I'd like to hear some recommendations on moving forward.

TIA,

Conrad Pino