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systype.h
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C/C++ Source or Header
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1989-12-17
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2KB
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85 lines
/*
* Figure out the type of system that we're running on.
*
* Try to determine the environment automatically from the C compiler's
* predefined symbols.
* The following can be determined automatically:
* BSD VAX, Pyramid, Xenix, AT&T 3b1, AT&T 80386, Celerity and MS-DOS.
* If this doesn't work on some new system, ifdef this out, and set it
* by hand.
*/
#ifdef unix /* true for most UNIX systems, BSD and Sys5 */
/* but not for Xenix !! */
#define UNIX 1 /* OS type */
#ifdef vax /* true for BSD on a VAX */
/* also true for VAX Sys5, but we don't have to worry about that (for now) */
#define VAX 1 /* hardware */
#define BSD 1 /* OS type */
#else
#ifdef pyr
#define PYRAMID 1 /* hardware */
#define BSD 1 /* OS type */
#else
#ifdef mc68k /* assume AT&T UNIX pc, aka 7300 or 3b1 */
/* what about other 68000 unix systems ?? */
#define UNIXPC 1 /* hardware */
#define SYS5 1 /* OS type */
#else
#ifdef i386 /* AT&T System V Release 3.2 on the Intel 80386 */
#define IBMPC 1 /* hardware */
#define SYS5 1 /* OS type */
#else
#ifdef accel
#define CELERITY 1 /* hardware */
#define BSD 1 /* OS type */
#else
what type of unix system is this
#endif /* accel */
#endif /* i386 */
#endif /* mc68k */
#endif /* pyr */
#endif /* vax */
#endif /* unix */
#ifdef M_XENIX /* true for SCO Xenix */
#define UNIX 1 /* OS type */
#define XENIX 1 /* OS type */
#define SYS5 1 /* OS type */
#define IBMPC 1 /* hardware */
#endif /* M_XENIX */
#ifdef MSDOS /* true for Microsoft C and Lattice, assume former */
#define IBMPC 1 /* hardware */
#define MICROSOFT 1 /* C compiler type */
#endif /* MSDOS */
/*
* Define replacement names for the BSD names that we use.
*/
#ifdef SYS5
#define rindex strrchr
#define index strchr
#define u_char unchar
#define u_short ushort
#define u_int uint
#define u_long ulong
#endif
#ifdef MICROSOFT
#define rindex strrchr
#define index strchr
#define u_char unchar
#define u_short ushort
#define u_int uint
#define u_long ulong
#endif