| 1 | /* $Header$ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1990-1997 Sam Leffler |
| 5 | * Copyright (c) 1991-1997 Silicon Graphics, Inc. |
| 6 | * |
| 7 | * Permission to use, copy, modify, distribute, and sell this software and |
| 8 | * its documentation for any purpose is hereby granted without fee, provided |
| 9 | * that (i) the above copyright notices and this permission notice appear in |
| 10 | * all copies of the software and related documentation, and (ii) the names of |
| 11 | * Sam Leffler and Silicon Graphics may not be used in any advertising or |
| 12 | * publicity relating to the software without the specific, prior written |
| 13 | * permission of Sam Leffler and Silicon Graphics. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
| 16 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
| 17 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
| 18 | * |
| 19 | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
| 20 | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
| 21 | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 22 | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
| 23 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 24 | * OF THIS SOFTWARE. |
| 25 | */ |
| 26 | |
| 27 | #ifndef _COMPAT_ |
| 28 | #define _COMPAT_ |
| 29 | /* |
| 30 | * This file contains a hodgepodge of definitions and |
| 31 | * declarations that are needed to provide compatibility |
| 32 | * between the native system and the base implementation |
| 33 | * that the library assumes. |
| 34 | * |
| 35 | * NB: This file is a mess. |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * Setup basic type definitions and function declaratations. |
| 40 | */ |
| 41 | |
| 42 | /* |
| 43 | * Simplify Acorn RISC OS identifier (to avoid confusion with Acorn RISC iX |
| 44 | * and with defunct Unix Risc OS) |
| 45 | * No need to specify __arm - hey, Acorn might port the OS, no problem here! |
| 46 | */ |
| 47 | #ifdef __acornriscos |
| 48 | #undef __acornriscos |
| 49 | #endif |
| 50 | #if defined(__acorn) && defined(__riscos) |
| 51 | #define __acornriscos |
| 52 | #endif |
| 53 | |
| 54 | #if defined(__MWERKS__) || defined(THINK_C) |
| 55 | #include <unix.h> |
| 56 | #include <math.h> |
| 57 | #endif |
| 58 | |
| 59 | #include <stdio.h> |
| 60 | |
| 61 | #if defined(__PPCC__) || defined(__SC__) || defined(__MRC__) |
| 62 | #include <types.h> |
| 63 | #elif !defined(__MWERKS__) && !defined(THINK_C) && !defined(__acornriscos) && !defined(applec) |
| 64 | #include <sys/types.h> |
| 65 | #endif |
| 66 | |
| 67 | #if defined(VMS) |
| 68 | #include <file.h> |
| 69 | #include <unixio.h> |
| 70 | #elif !defined(__acornriscos) |
| 71 | #include <fcntl.h> |
| 72 | #endif |
| 73 | |
| 74 | /* |
| 75 | * This maze of checks controls defines or not the |
| 76 | * target system has BSD-style typdedefs declared in |
| 77 | * an include file and/or whether or not to include |
| 78 | * <unistd.h> to get the SEEK_* definitions. Some |
| 79 | * additional includes are also done to pull in the |
| 80 | * appropriate definitions we're looking for. |
| 81 | */ |
| 82 | #if defined(__MWERKS__) || defined(THINK_C) || defined(__PPCC__) || defined(__SC__) || defined(__MRC__) |
| 83 | #include <stdlib.h> |
| 84 | #define BSDTYPES |
| 85 | #define HAVE_UNISTD_H 0 |
| 86 | #elif defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows) |
| 87 | #define BSDTYPES |
| 88 | #elif defined(OS2_16) || defined(OS2_32) |
| 89 | #define BSDTYPES |
| 90 | #elif defined(__acornriscos) |
| 91 | #include <stdlib.h> |
| 92 | #define BSDTYPES |
| 93 | #define HAVE_UNISTD_H 0 |
| 94 | #elif defined(VMS) |
| 95 | #define HAVE_UNISTD_H 0 |
| 96 | #else |
| 97 | #define HAVE_UNISTD_H 1 |
| 98 | #endif |
| 99 | |
| 100 | /* |
| 101 | * The library uses the ANSI C/POSIX SEEK_* |
| 102 | * definitions that should be defined in unistd.h |
| 103 | * (except on system where they are in stdio.h and |
| 104 | * there is no unistd.h). |
| 105 | */ |
| 106 | #if !defined(SEEK_SET) && HAVE_UNISTD_H |
| 107 | #include <unistd.h> |
| 108 | #endif |
| 109 | |
| 110 | /* |
| 111 | * The library uses memset, memcpy, and memcmp. |
| 112 | * ANSI C and System V define these in string.h. |
| 113 | */ |
| 114 | #include <string.h> |
| 115 | |
| 116 | /* |
| 117 | * The BSD typedefs are used throughout the library. |
| 118 | * If your system doesn't have them in <sys/types.h>, |
| 119 | * then define BSDTYPES in your Makefile. |
| 120 | */ |
| 121 | #if defined(BSDTYPES) |
| 122 | typedef unsigned char u_char; |
| 123 | typedef unsigned short u_short; |
| 124 | typedef unsigned int u_int; |
| 125 | typedef unsigned long u_long; |
| 126 | #endif |
| 127 | |
| 128 | /* |
| 129 | * dblparam_t is the type that a double precision |
| 130 | * floating point value will have on the parameter |
| 131 | * stack (when coerced by the compiler). |
| 132 | */ |
| 133 | /* Note: on MacPowerPC "extended" is undefined. So only use it for 68K-Macs */ |
| 134 | #if defined(__SC__) || defined(THINK_C) |
| 135 | typedef extended dblparam_t; |
| 136 | #else |
| 137 | typedef double dblparam_t; |
| 138 | #endif |
| 139 | |
| 140 | /* |
| 141 | * If your compiler supports inline functions, then |
| 142 | * set INLINE appropriately to get the known hotspots |
| 143 | * in the library expanded inline. |
| 144 | */ |
| 145 | #if defined(__GNUC__) |
| 146 | #if defined(__STRICT_ANSI__) |
| 147 | #define INLINE __inline__ |
| 148 | #else |
| 149 | #define INLINE inline |
| 150 | #endif |
| 151 | #else /* !__GNUC__ */ |
| 152 | #define INLINE |
| 153 | #endif |
| 154 | |
| 155 | /* |
| 156 | * GLOBALDATA is a macro that is used to define global variables |
| 157 | * private to the library. We use this indirection to hide |
| 158 | * brain-damage in VAXC (and GCC) under VAX/VMS. In these |
| 159 | * environments the macro places the variable in a non-shareable |
| 160 | * program section, which ought to be done by default (sigh!) |
| 161 | * |
| 162 | * Apparently DEC are aware of the problem as this behaviour is the |
| 163 | * default under VMS on AXP. |
| 164 | * |
| 165 | * The GNU C variant is untested. |
| 166 | */ |
| 167 | #if defined(VAX) && defined(VMS) |
| 168 | #if defined(VAXC) |
| 169 | #define GLOBALDATA(TYPE,NAME) extern noshare TYPE NAME |
| 170 | #endif |
| 171 | #if defined(__GNUC__) |
| 172 | #define GLOBALDATA(TYPE,NAME) extern TYPE NAME \ |
| 173 | asm("_$$PsectAttributes_NOSHR$$" #NAME) |
| 174 | #endif |
| 175 | #else /* !VAX/VMS */ |
| 176 | #define GLOBALDATA(TYPE,NAME) extern TYPE NAME |
| 177 | #endif |
| 178 | |
| 179 | #if defined(__acornriscos) |
| 180 | /* |
| 181 | * osfcn.h is part of C++Lib on Acorn C/C++, and as such can't be used |
| 182 | * on C alone. For that reason, the relevant functions are |
| 183 | * implemented in tif_acorn.c, and the elements from the header |
| 184 | * file are included here. |
| 185 | */ |
| 186 | #if defined(__cplusplus) |
| 187 | #include <osfcn.h> |
| 188 | #else |
| 189 | #define O_RDONLY 0 |
| 190 | #define O_WRONLY 1 |
| 191 | #define O_RDWR 2 |
| 192 | #define O_APPEND 8 |
| 193 | #define O_CREAT 0x200 |
| 194 | #define O_TRUNC 0x400 |
| 195 | typedef long off_t; |
| 196 | extern int open(const char *name, int flags, int mode); |
| 197 | extern int close(int fd); |
| 198 | extern int write(int fd, const char *buf, int nbytes); |
| 199 | extern int read(int fd, char *buf, int nbytes); |
| 200 | extern off_t lseek(int fd, off_t offset, int whence); |
| 201 | extern int creat(const char *path, int mode); |
| 202 | #endif /* __cplusplus */ |
| 203 | #endif /* __acornriscos */ |
| 204 | |
| 205 | /* Bit and byte order, the default is MSB to LSB */ |
| 206 | #ifdef VMS |
| 207 | #undef HOST_FILLORDER |
| 208 | #undef HOST_BIGENDIAN |
| 209 | #define HOST_FILLORDER FILLORDER_LSB2MSB |
| 210 | #define HOST_BIGENDIAN 0 |
| 211 | #endif |
| 212 | |
| 213 | |
| 214 | #endif /* _COMPAT_ */ |