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annotate third_party/sqlite3/autosetup/cc-lib.tcl @ 186:8cf4ec5e2191 hg-web

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Fixed merge conflict.
author MrJuneJune <me@mrjunejune.com>
date Fri, 23 Jan 2026 22:38:59 -0800
parents 589bab390fb4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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167
589bab390fb4 [ThirdParty] Added sqlite3 to the third_party.
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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 }