/* estruct.h -- */
#ifndef _ESTRUCT_H_
#define _ESTRUCT_H_

/*  Structure and preprocessor defines
 *
 *  written by Dave G. Conroy
 *  modified by Steve Wilhite, George Jones
 *  substantially modified by Daniel Lawrence
 *  modified by Petri Kutvonen
 */

#ifdef  MSDOS
# undef MSDOS
#endif

/* Machine/OS definitions. */

#if defined(AUTOCONF) || defined(BSD) || defined(SYSV)

/* Make an intelligent guess about the target system. */

# if defined(BSD) || defined(sun) || defined(ultrix) || defined(__osf__)
#  ifndef BSD
#   define BSD 1 /* Berkeley UNIX */
#  endif
# else
#  define BSD 0
# endif

# if defined(SVR4) || defined(__linux__)    /* ex. SunOS 5.3 */
#  define SVR4 1
#  define SYSV 1
#  undef BSD
# endif

# if defined(SYSV) || defined(u3b2) || defined(_AIX) || (defined(i386) && defined(unix)) || defined( __unix__)
#  define   USG 1 /* System V UNIX */
# else
#  define   USG 0
# endif

#else
# define BSD    0       /* UNIX BSD 4.2 and ULTRIX      */
# define USG    1       /* UNIX system V                */
#endif  /*autoconf || BSD || SYSV */

#define MSDOS   0       /* MS-DOS                       */

/*  Compiler definitions    */
#ifndef AUTOCONF
# define UNIX   1       /* a random UNIX compiler */
#else
# define UNIX   (BSD | USG)
#endif  /*autoconf */

/*  Debugging options   */

#define RAMSIZE 0       /* dynamic RAM memory usage tracking */
#if RAMSIZE
# define    RAMSHOW 1       /* auto dynamic RAM reporting */
#endif

#ifndef AUTOCONF
/*  Terminal Output definitions     */
# define TERMCAP    0       /* Use TERMCAP                  */
# define IBMPC      1       /* IBM-PC CGA/MONO/EGA driver   */
#else
# define TERMCAP    UNIX
# define IBMPC      MSDOS
#endif /* Autoconf. */

/*  Configuration options   */

#define VISMAC  0  /* update display during keyboard macros        */

#ifndef AUTOCONF
# define    COLOR   1  /* color commands and windows                   */
# define    FILOCK  0  /* file locking under unix BSD 4.2              */
#else
# define    COLOR   MSDOS
# ifdef  SVR4
#  define FILOCK  1
# else
#  define   FILOCK  BSD
# endif
#endif /* Autoconf. */

#define CLEAN   0  /* de-alloc memory on exit                      */

#ifndef AUTOCONF
# define XONXOFF    0  /* don't disable XON-XOFF flow control P.K.     */
#else
# define XONXOFF    UNIX
#endif /* Autoconf. */

#define PKCODE  1      /* include my extensions P.K., define always    */
#define SCROLLCODE 1   /* scrolling code P.K.                          */

/* Define some ability flags. */

#if IBMPC
# define    MEMMAP  1
#else
# define    MEMMAP  0
#endif

#if USG | BSD
# define ENVFUNC    1
#else
# define ENVFUNC    0
#endif

/*  Dynamic RAM tracking and reporting redefinitions    */

#if RAMSIZE
# include <stdlib.h>
  void *allocate( size_t size) ;
  void release( void *ptr) ;
# define    malloc  allocate
# define    free    release
#endif

/*  De-allocate memory always on exit (if the operating system or
    main program can not
*/

#if CLEAN
# define    exit(a) cexit(a)

  void cexit( int status) ;
#endif

#endif
/* end of estruct.h */