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296
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1 /* system description file for cygwin32.
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231
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2 Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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239
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21 /* Building under cygwin
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22 *
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410
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23 * The approach I have taken with this port is to use primarily the
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24 * UNIX code base adding stuff that is MS-Windows specific. This works
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25 * quite well, and is in keeping with my perception of the cygwin
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26 * philosophy. Note that if you make changes to this file you do NOT
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27 * want to define WIN32_NATIVE (formerly "WINDOWSNT"), I repeat - do
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28 * not define this, it will break everything horribly. What does get
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29 * defined is HAVE_MS_WINDOWS, but this is done by configure and only
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30 * applies to the window system.
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239
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31 *
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388
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32 * When building make sure your HOME path is unix style - i.e. without
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33 * a drive letter.
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259
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34 *
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388
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35 * once you have done this, configure and make.
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251
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36 *
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37 * windows '95 - I haven't tested this under '95, it will probably
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38 * build but I konw there are some limitations with cygwin under 95 so
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39 * YMMV. I build with NT4 SP3.
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40 *
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41 * Andy Piper <andy@xemacs.org> 8/1/98
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398
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42 * http://www.xemacs.freeserve.co.uk/ */
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231
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43
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410
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44 /* Identify ourselves */
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45 #define CYGWIN
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46
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251
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47 /* cheesy way to determine cygwin version */
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231
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48 #ifndef NOT_C_CODE
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404
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49 # include <signal.h>
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50 # ifdef HAVE_CYGWIN_VERSION_H
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51 # include <cygwin/version.h>
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52 # else
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53 # ifdef SIGIO
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54 # define CYGWIN_VERSION_DLL_MAJOR 19
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55 # define CYGWIN_VERSION_DLL_MINOR 0
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56 # define CYGWIN_B19
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57 # else
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58 # define CYGWIN_VERSION_DLL_MAJOR 18
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59 # define CYGWIN_VERSION_DLL_MINOR 0
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60 # define BROKEN_CYGWIN
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61 # endif
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62 # endif
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373
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63
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410
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64 void cygwin32_win32_to_posix_path_list (const char*, char*);
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65 int cygwin32_win32_to_posix_path_list_buf_size (const char*);
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66 void cygwin32_posix_to_win32_path_list (const char*, char*);
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67 int cygwin32_posix_to_win32_path_list_buf_size (const char*);
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404
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68 # if CYGWIN_VERSION_DLL_MAJOR < 20
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263
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69 struct timeval;
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70 struct timezone;
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278
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71 struct itimerval;
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72 struct stat;
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410
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73 int gettimeofday (struct timeval *tp, struct timezone *tzp);
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74 int gethostname (char* name, int namelen);
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75 char* mktemp (char *);
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76 double logb (double);
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77 void sync (void);
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78 int ioctl (int, int, ...);
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79 /* sys/stat.h */
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80 int lstat (const char *path, struct stat *buf);
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81 /* unistd.h */
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82 int readlink (const char *path, void *buf, unsigned int bufsiz);
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83 int symlink (const char *name1, const char *name2);
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84 /* sys/time.h */
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85 int setitimer (int which, const struct itimerval *value,
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86 struct itimerval *ovalue);
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87 int utimes (char *file, struct timeval *tvp);
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278
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88
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410
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89 int srandom (unsigned seed);
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90 long random (void);
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91
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92 # endif /* CYGWIN_VERSION_DLL_MAJOR < 20 */
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373
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93
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410
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94 # if CYGWIN_VERSION_DLL_MAJOR <= 20
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95 char *getpass (const char *prompt);
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96 double logb (double);
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97 # endif /* CYGWIN_VERSION_DLL_MAJOR <= 20 */
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355
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98
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245
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99 #endif
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231
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100
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101 #ifndef ORDINARY_LINK
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102 #define ORDINARY_LINK
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103 #endif
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104
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278
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105 #define C_SWITCH_SYSTEM -Wno-sign-compare -fno-caller-saves
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265
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106 #define LIBS_SYSTEM -lwinmm
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408
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107 #define WIN32_LEAN_AND_MEAN
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108
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109 #define TEXT_START -1
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110 #define TEXT_END -1
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111 #define DATA_END -1
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251
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112 #define HEAP_IN_DATA
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113 #define NO_LIM_DATA
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114 #define UNEXEC "unexcw.o"
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115
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116 #ifdef CYGWIN_VERSION_DLL_MAJOR
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392
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117 #if 0
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398
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118 /* #### FIXME: although defining BROKEN_SIGIO is correct for proper ^G
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392
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119 behavior, bugs in cygwin mean that xemacs locks up frequently if
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120 this is defined. */
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377
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121 #define BROKEN_SIGIO
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392
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122 #endif
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377
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123 #else
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296
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124 #define PROCESS_IO_BLOCKING
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377
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125 #endif
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251
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126 #define strnicmp strncasecmp
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127 #ifndef HAVE_SOCKETS
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128 #define HAVE_SOCKETS
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129 #endif
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265
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130 #define OBJECTS_SYSTEM ntplay.o
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131
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231
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132 #undef MAIL_USE_SYSTEM_LOCK
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133
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134 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
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135 * group of arguments and treat it as an array of the arguments. */
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136
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137 #define NO_ARG_ARRAY
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138
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139 /* Data type of load average, as read out of kmem. */
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140
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141 #define LOAD_AVE_TYPE long
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142
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143 /* Convert that into an integer that is 100 for a load average of 1.0 */
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144
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145 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
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146
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147 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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148 pure and impure space as loaded can vary, and even their
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149 relative order cannot be relied on.
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150
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151 Otherwise Emacs assumes that text space precedes data space,
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152 numerically. */
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153
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154 /* Text does precede data space, but this is never a safe assumption. */
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155 #define VIRT_ADDR_VARIES
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156
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157 /* If you are compiling with a non-C calling convention but need to
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158 declare vararg routines differently, put it here */
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159 #define _VARARGS_ __cdecl
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160
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161 /* If you are providing a function to something that will call the
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162 function back (like a signal handler and signal, or main) its calling
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163 convention must be whatever standard the libraries expect */
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164 #define _CALLBACK_ __cdecl
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165
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166 /* SYSTEM_TYPE should indicate the kind of system you are using.
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167 It sets the Lisp variable system-type. */
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168
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245
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169 #define SYSTEM_TYPE "cygwin32"
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231
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170
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171 #define NO_MATHERR
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172
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173 /* define MAIL_USE_FLOCK if the mailer uses flock
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174 to interlock access to /usr/spool/mail/$USER.
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175 The alternative is that a lock file named
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176 /usr/spool/mail/$USER.lock. */
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177
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178 /* If the character used to separate elements of the executable path
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179 is not ':', #define this to be the appropriate character constant. */
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245
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180 #define SEPCHAR ':'
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231
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181
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182 /* ============================================================ */
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183
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184 /* Here, add any special hacks needed
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185 to make Emacs work on this system. For example,
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186 you might define certain system call names that don't
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187 exist on your system, or that do different things on
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188 your system and must be used only through an encapsulation
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189 (Which you should place, by convention, in sysdep.c). */
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190
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191 /* Define this to be the separator between path elements */
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192 /* #define DIRECTORY_SEP XINT (Vdirectory_sep_char) */
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193
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194 /* Define this to be the separator between devices and paths */
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195 #define DEVICE_SEP ':'
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196
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197 /* We'll support either convention on NT. */
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198 #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\')
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199 #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_))
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200 #define EXEC_SUFFIXES ".exe:.com:.bat:.cmd:"
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201
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202 /* We need a little extra space, see ../../lisp/loadup.el */
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203 #define SYSTEM_PURESIZE_EXTRA 15000
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204
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205 #define CYGWIN_CONV_PATH(src, dst) \
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206 dst = alloca (cygwin32_win32_to_posix_path_list_buf_size(src)); \
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207 cygwin32_win32_to_posix_path_list(src, dst)
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265
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208 #define CYGWIN_WIN32_PATH(src, dst) \
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209 dst = alloca (cygwin32_posix_to_win32_path_list_buf_size(src)); \
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210 cygwin32_posix_to_win32_path_list(src, dst)
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259
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211
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251
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212 /*
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213 * stolen from usg.
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214 */
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215 #define HAVE_PTYS
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216 #define FIRST_PTY_LETTER 'z'
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217
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218 /* Pseudo-terminal support under SVR4 only loops to deal with errors. */
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219
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220 #define PTY_ITERATION for (i = 0, c = 0; i < 1; i++)
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221
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222 /* This sets the name of the master side of the PTY. */
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223
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224 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
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225
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226 /* This sets the name of the slave side of the PTY. On SysVr4,
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227 grantpt(3) forks a subprocess, so keep sigchld_handler() from
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228 intercepting that death. If any child but grantpt's should die
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229 within, it should be caught after EMACS_UNBLOCK_SIGNAL. */
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230
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231 #define PTY_OPEN \
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232 fd = open (pty_name, O_RDWR | O_NONBLOCK | OPEN_BINARY, 0)
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233
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234 #define PTY_TTY_NAME_SPRINTF \
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235 { \
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265
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236 extern char* ptsname(int); \
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237 char *ptyname; \
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238 \
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239 if (!(ptyname = ptsname (fd))) \
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240 { close (fd); return -1; } \
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241 strncpy (pty_name, ptyname, sizeof (pty_name)); \
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242 pty_name[sizeof (pty_name) - 1] = 0; \
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243 }
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244
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231
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245 /* ============================================================ */
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246
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