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428
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1 /* Synched up with: FSF 19.31. */
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2
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3 /* For building XEmacs under SunOS 4.1.* with static libraries. */
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4
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5 #ifndef _S_SUNOS4_H_
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6 #define _S_SUNOS4_H_
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7
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8 #include "bsd4-2.h"
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9
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10 #ifndef SUNOS4
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11 #define SUNOS4
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12 #endif
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13
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14 #if 0 /* This may have been needed for an earlier version of Sun OS 4.
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15 It seems to cause warnings in 4.0.3 and 4.1. */
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16 #define O_NDELAY FNDELAY /* Non-blocking I/O (4.2 style) */
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17 #endif
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18
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19 #ifdef NOT_C_CODE
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20 /* The new sunOS unexec eliminates the need for a custom crt0.o, so we
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21 can just let the compiler invoke the linker and don't have to guess
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22 what options it might have passed it. */
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23 # define ORDINARY_LINK
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24 # define START_FILES
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25 # define LD_CMD $(CC)
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26 # ifndef LD_SWITCH_SYSTEM
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27 # define LD_SWITCH_SYSTEM "-Bstatic"
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28 # endif
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29 # define UNEXEC "unexsunos4.o"
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30 #endif /* NOT_C_CODE */
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31
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32 #define RUN_TIME_REMAP
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33
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34 /* these don't matter, but we have to define something to keep
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35 sysdep.c from introducing bogus symbols */
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36 #define TEXT_START 0
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37 #define DATA_START 0
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38
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39 /* #### XEmacs: #define of SYSTEM_MALLOC removed. Is this OK? FSF says:
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40
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41 In SunOS 4.1, a static function called by tzsetwall reportedly
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42 clears the byte just past an eight byte region it mallocs, corrupting
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43 GNU malloc's memory pool. But Sun's malloc doesn't seem to mind. */
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44
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45 /* XEmacs: additions for proper prototyping. */
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46 #ifndef NOT_C_CODE
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47 #ifdef __STDC__
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48 /* Sun's headers are categorically losing.
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49 Mly uses broken-sun.h to get the protos for this, but lcc provides all
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50 of the prototypes for the ANSI routines. So I'm just going to put the
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51 protos of the non-ANSI routines that we use here (I guess that would
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52 be things that are Posix but not ANSI?) You're in a maze of twisty
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53 little standards, all alike...
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54 */
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55 /* Since lcc is not going to be heavily used anymore if it ever was, I'm
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56 putting broken-sun.h back in. */
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57 /* Since Gcc 2.8 appears to have fixed the problem, I'm conditionalizing */
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58 /* this ugly hack. */
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59
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60 #if defined (__GNUC__)
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61 #if defined (__GNUC_MINOR__)
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62 #if ((__GNUC__ == 2) && (__GNUC_MINOR__ > 7)) || ((__GNUC__ > 2))
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63 /* Don't include for gcc 2.8.0*/
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64 #else
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65 #include "../broken-sun.h"
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66 #endif
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67
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68 #else /* __GNUC_MINOR__ is undefined */
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69 #include "../broken-sun.h"
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70 #endif
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71
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72 #else
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73 /* Not GNU C */
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74 #endif
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75
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76 extern char *strdup ();
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77 extern char *ttyname (int);
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78 extern void tzsetwall (void);
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79 extern int getpagesize (void);
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80
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81 #include <memory.h>
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82 #ifdef __SUNPRO_C
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83 /* Suppress zillions of warnings from outdated SunOS4 prototypes */
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84 /* Bother! Sun can't even get the arg types right. */
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85 #include <string.h>
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86 #define memset(a,b,c) memset((char*) (a), b, c)
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87 #define memcpy(a,b,c) memcpy((char*) (a), (char*) (b), c)
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88 #define memcmp(a,b,c) memcmp((char*) (a), (char*) (b), c)
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89 #define memchr(a,b,c) memchr((char*) (a), b, c)
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90 void * __builtin_alloca(int);
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91 #ifdef HAVE_X_WINDOWS
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92 #include <X11/Xlib.h>
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93 #define XFree(p) XFree((char*)(p))
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94 #endif /* X Windows */
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95 #endif /* __SUNPRO_C */
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96
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97 #endif /* __STDC__ */
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98
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99 # ifdef __GNUC__
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100 /* XEmacs addition: */
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101 /* gcc has the bug that it claims to conform to the ANSI C standard
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102 (which is what setting __STDC__ to 1 means) but does not necessarily
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103 provide all of the library routines which the standard requires of a
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104 conforming compiler -- such as memmove. The other Sun ANSI compilers
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105 (Sun's acc and Lucid's lcc) do not have this bug. */
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106 # define memmove(to, from, size) bcopy ((char *) (from), (char *) (to), (size))
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107 /* We must define mkdir with this arg prototype
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108 to match GCC's fixed stat.h. */
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109 # define MKDIR_PROTOTYPE \
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110 int mkdir (const char *dpath, unsigned short dmode)
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111 # endif /* __GNUC__ */
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112
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551
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113 /* ANSI C requires that realloc accept a null pointer argument,
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114 but ancient implementations such as SunOS 4 don't allow this.
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115 We redefine realloc here so that the source code can be written to
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116 use the ANSI C API. */
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117 #include <sys/types.h>
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118 #ifdef __GNUC__
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119 inline /* Suppress warning: realloc_accepting_nullptr defined but not used */
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120 #endif
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121 static void*
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122 realloc_accepting_nullptr (void *ptr, size_t size)
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123 {
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124 extern char *realloc ();
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125 extern char *malloc ();
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126 return ptr ? (void *) realloc (ptr, size) : (void *) malloc (size);
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127 }
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128 #define realloc(ptr, size) realloc_accepting_nullptr (ptr, size)
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129
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428
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130 #endif /* C_CODE */
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131
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132 #endif /* _S_SUNOS4_H_ */
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