djgpp error

/usr/local/djgpp/bin/i586-pc-msdosdjgpp-gcc -c -o vendor/allegro/src/allegro.o vendor/allegro/src/allegro.c -Ivendor/allegro/include -Ivendor/allegro
In file included from vendor/allegro/include/allegro/internal/alconfig.h:65:0,
                 from vendor/allegro/include/allegro/base.h:39,
                 from vendor/allegro/include/allegro.h:25,
                 from vendor/allegro/src/allegro.c:23:
vendor/allegro/include/allegro/platform/astdbool.h:29:23: error: two or more data types in declaration specifiers
 typedef unsigned char _Bool;
                       ^
vendor/allegro/include/allegro/platform/astdbool.h:29:1: warning: useless type name in empty declaration
 typedef unsigned char _Bool;
 ^
make: *** [vendor/allegro/src/allegro.o] Error 1


----



/*         ______   ___    ___ 
 *        /\  _  \ /\_ \  /\_ \ 
 *        \ \ \L\ \\//\ \ \//\ \      __     __   _ __   ___ 
 *         \ \  __ \ \ \ \  \ \ \   /'__`\ /'_ `\/\`'__\/ __`\
 *          \ \ \/\ \ \_\ \_ \_\ \_/\  __//\ \L\ \ \ \//\ \L\ \
 *           \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
 *            \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
 *                                           /\____/
 *                                           \_/__/
 *
 *      A header file to get C99's stdbool.h.
 *
 *      By Peter Wang.
 * 
 *      See readme.txt for copyright information.
 */

#ifndef ASTDBOOL_H
#define ASTDBOOL_H

/* This code is recommended by the autoconf manual */
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#else
# ifndef HAVE__BOOL
#  ifdef __cplusplus
typedef bool _Bool;
#  else
typedef unsigned char _Bool;
#  endif
# endif
# define bool _Bool
# define false 0
# define true 1
# define __bool_true_false_are_defined 1
#endif

#endif /* ifndef ASTDBOOL_H */