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annotate third_party/sqlite3/autosetup/cc-lib.tcl @ 279:b3b547563ec7

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Add Google connector service and agent wiki Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code. Co-authored-by: Copilot <[email protected]> Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d
author MrJuneJune <me@mrjunejune.com>
date Mon, 17 Aug 2026 22:22:36 -0700
parents 589bab390fb4
children
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167
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1 # Copyright (c) 2011 WorkWare Systems http://www.workware.net.au/
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2 # All rights reserved
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3
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4 # @synopsis:
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5 #
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6 # Provides a library of common tests on top of the 'cc' module.
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7
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8 use cc
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9
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10 # @cc-check-lfs
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11 #
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12 # The equivalent of the 'AC_SYS_LARGEFILE' macro.
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13 #
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14 # defines 'HAVE_LFS' if LFS is available,
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15 # and defines '_FILE_OFFSET_BITS=64' if necessary
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16 #
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17 # Returns 1 if 'LFS' is available or 0 otherwise
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18 #
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19 proc cc-check-lfs {} {
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20 cc-check-includes sys/types.h
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21 msg-checking "Checking if -D_FILE_OFFSET_BITS=64 is needed..."
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22 set lfs 1
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23 if {[msg-quiet cc-with {-includes sys/types.h} {cc-check-sizeof off_t}] == 8} {
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24 msg-result no
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25 } elseif {[msg-quiet cc-with {-includes sys/types.h -cflags -D_FILE_OFFSET_BITS=64} {cc-check-sizeof off_t}] == 8} {
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26 define _FILE_OFFSET_BITS 64
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27 msg-result yes
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28 } else {
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29 set lfs 0
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30 msg-result none
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31 }
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32 define-feature lfs $lfs
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33 return $lfs
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34 }
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35
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36 # @cc-check-endian
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37 #
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38 # The equivalent of the 'AC_C_BIGENDIAN' macro.
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39 #
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40 # defines 'HAVE_BIG_ENDIAN' if endian is known to be big,
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41 # or 'HAVE_LITTLE_ENDIAN' if endian is known to be little.
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42 #
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43 # Returns 1 if determined, or 0 if not.
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44 #
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45 proc cc-check-endian {} {
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46 cc-check-includes sys/types.h sys/param.h
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47 set rc 0
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48 msg-checking "Checking endian..."
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49 cc-with {-includes {sys/types.h sys/param.h}} {
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50 if {[cctest -code {
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51 #if !defined(BIG_ENDIAN) || !defined(BYTE_ORDER)
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52 #error unknown
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53 #elif BYTE_ORDER != BIG_ENDIAN
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54 #error little
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55 #endif
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56 }]} {
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57 define-feature big-endian
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58 msg-result "big"
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59 set rc 1
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60 } elseif {[cctest -code {
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61 #if !defined(LITTLE_ENDIAN) || !defined(BYTE_ORDER)
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62 #error unknown
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63 #elif BYTE_ORDER != LITTLE_ENDIAN
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64 #error big
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65 #endif
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66 }]} {
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67 define-feature little-endian
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68 msg-result "little"
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69 set rc 1
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70 } else {
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71 msg-result "unknown"
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72 }
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73 }
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74 return $rc
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75 }
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76
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77 # @cc-check-flags flag ?...?
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78 #
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79 # Checks whether the given C/C++ compiler flags can be used. Defines feature
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80 # names prefixed with 'HAVE_CFLAG' and 'HAVE_CXXFLAG' respectively, and
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81 # appends working flags to '-cflags' and 'AS_CFLAGS' or 'AS_CXXFLAGS'.
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82 proc cc-check-flags {args} {
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83 set result 1
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84 array set opts [cc-get-settings]
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85 switch -exact -- $opts(-lang) {
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86 c++ {
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87 set lang C++
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88 set prefix CXXFLAG
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89 }
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90 c {
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91 set lang C
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92 set prefix CFLAG
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93 }
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94 default {
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95 autosetup-error "cc-check-flags failed with unknown language: $opts(-lang)"
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96 }
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97 }
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98 foreach flag $args {
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99 msg-checking "Checking whether the $lang compiler accepts $flag..."
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100 if {[cctest -cflags $flag]} {
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101 msg-result yes
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102 define-feature $prefix$flag
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103 cc-with [list -cflags [list $flag]]
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104 define-append AS_${prefix}S $flag
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105 } else {
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106 msg-result no
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107 set result 0
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108 }
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109 }
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110 return $result
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111 }
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112
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113 # @cc-check-standards ver ?...?
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114 #
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115 # Checks whether the C/C++ compiler accepts one of the specified '-std=$ver'
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116 # options, and appends the first working one to '-cflags' and 'AS_CFLAGS' or
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117 # 'AS_CXXFLAGS'.
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118 proc cc-check-standards {args} {
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119 array set opts [cc-get-settings]
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120 foreach std $args {
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121 if {[cc-check-flags -std=$std]} {
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122 return $std
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123 }
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124 }
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125 return ""
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126 }
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127
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128 # Checks whether $keyword is usable as alignof
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129 proc cctest_alignof {keyword} {
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130 msg-checking "Checking for $keyword..."
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131 if {[cctest -code "int x = ${keyword}(char), y = ${keyword}('x');"]} then {
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132 msg-result ok
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133 define-feature $keyword
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134 } else {
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135 msg-result "not found"
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136 }
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137 }
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138
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139 # @cc-check-c11
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140 #
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141 # Checks for several C11/C++11 extensions and their alternatives. Currently
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142 # checks for '_Static_assert', '_Alignof', '__alignof__', '__alignof'.
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143 proc cc-check-c11 {} {
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144 msg-checking "Checking for _Static_assert..."
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145 if {[cctest -code {
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146 _Static_assert(1, "static assertions are available");
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147 }]} then {
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148 msg-result ok
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149 define-feature _Static_assert
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150 } else {
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151 msg-result "not found"
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152 }
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153
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154 cctest_alignof _Alignof
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155 cctest_alignof __alignof__
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156 cctest_alignof __alignof
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157 }
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158
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159 # @cc-check-alloca
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160 #
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161 # The equivalent of the 'AC_FUNC_ALLOCA' macro.
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162 #
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163 # Checks for the existence of 'alloca'
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164 # defines 'HAVE_ALLOCA' and returns 1 if it exists.
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165 proc cc-check-alloca {} {
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166 cc-check-some-feature alloca {
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167 cctest -includes alloca.h -code { alloca (2 * sizeof (int)); }
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168 }
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169 }
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170
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171 # @cc-signal-return-type
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172 #
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173 # The equivalent of the 'AC_TYPE_SIGNAL' macro.
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174 #
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175 # defines 'RETSIGTYPE' to 'int' or 'void'.
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176 proc cc-signal-return-type {} {
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177 msg-checking "Checking return type of signal handlers..."
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178 cc-with {-includes {sys/types.h signal.h}} {
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179 if {[cctest -code {return *(signal (0, 0)) (0) == 1;}]} {
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180 set type int
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181 } else {
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182 set type void
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183 }
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184 define RETSIGTYPE $type
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185 msg-result $type
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186 }
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187 }