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util/dependencies.lua @ 10429:0b04d25c4ffb
mod_csi: Cache CSI module availability to improve readabilty
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 23 Nov 2019 17:15:34 +0100 |
parent | 10406:a7903de619b0 |
child | 10535:29c1a3bf1d29 |
rev | line source |
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1523
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Remove version number from copyright headers
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1 -- Prosody IM |
2923
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Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
6 -- COPYING file in the source package for more information. | |
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7 -- |
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8 |
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util.*: Remove use of module() function, make all module functions local and return them in a table at the end
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9 local function softreq(...) local ok, lib = pcall(require, ...); if ok then return lib; else return nil, lib; end end |
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10 |
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util.dependencies: Load luarocks.loader/luarocks.require
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11 -- Required to be able to find packages installed with luarocks |
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12 if not softreq "luarocks.loader" then -- LuaRocks 2.x |
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13 softreq "luarocks.require"; -- LuaRocks <1.x |
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14 end |
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15 |
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16 local function missingdep(name, sources, msg) |
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17 print(""); |
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18 print("**************************"); |
408
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19 print("Prosody was unable to find "..tostring(name)); |
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20 print("This package can be obtained in the following ways:"); |
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21 print(""); |
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22 local longest_platform = 0; |
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23 for platform in pairs(sources) do |
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24 longest_platform = math.max(longest_platform, #platform); |
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25 end |
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26 for platform, source in pairs(sources) do |
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27 print("", platform..":"..(" "):rep(4+longest_platform-#platform)..source); |
408
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28 end |
410
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29 print(""); |
408
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30 print(msg or (name.." is required for Prosody to run, so we will now exit.")); |
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31 print("More help can be found on our website, at https://prosody.im/doc/depends"); |
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32 print("**************************"); |
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33 print(""); |
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34 end |
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35 |
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36 local function check_dependencies() |
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37 if _VERSION < "Lua 5.1" then |
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38 print "***********************************" |
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39 print("Unsupported Lua version: ".._VERSION); |
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40 print("At least Lua 5.1 is required."); |
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41 print "***********************************" |
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42 return false; |
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43 end |
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44 |
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45 local fatal; |
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46 |
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47 local lxp = softreq "lxp" |
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48 |
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49 if not lxp then |
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50 missingdep("luaexpat", { |
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51 ["Debian/Ubuntu"] = "sudo apt-get install lua-expat"; |
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52 ["luarocks"] = "luarocks install luaexpat"; |
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53 ["Source"] = "http://matthewwild.co.uk/projects/luaexpat/"; |
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54 }); |
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55 fatal = true; |
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56 end |
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57 |
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58 local socket = softreq "socket" |
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59 |
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60 if not socket then |
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61 missingdep("luasocket", { |
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62 ["Debian/Ubuntu"] = "sudo apt-get install lua-socket"; |
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63 ["luarocks"] = "luarocks install luasocket"; |
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64 ["Source"] = "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/"; |
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65 }); |
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66 fatal = true; |
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67 elseif not socket.tcp4 then |
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68 -- COMPAT LuaSocket before being IP-version agnostic |
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69 socket.tcp4 = socket.tcp; |
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70 socket.udp4 = socket.udp; |
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71 end |
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72 |
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73 local lfs, err = softreq "lfs" |
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74 if not lfs then |
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75 missingdep("luafilesystem", { |
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76 ["luarocks"] = "luarocks install luafilesystem"; |
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77 ["Debian/Ubuntu"] = "sudo apt-get install lua-filesystem"; |
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78 ["Source"] = "http://www.keplerproject.org/luafilesystem/"; |
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79 }); |
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80 fatal = true; |
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81 end |
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82 |
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83 local ssl = softreq "ssl" |
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84 |
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85 if not ssl then |
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86 missingdep("LuaSec", { |
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87 ["Debian/Ubuntu"] = "sudo apt-get install lua-sec"; |
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88 ["luarocks"] = "luarocks install luasec"; |
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89 ["Source"] = "https://github.com/brunoos/luasec"; |
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90 }, "SSL/TLS support will not be available"); |
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91 end |
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92 |
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93 local bit = softreq"util.bitcompat"; |
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94 |
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95 if not bit then |
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96 missingdep("lua-bitops", { |
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97 ["Debian/Ubuntu"] = "sudo apt-get install lua-bitop"; |
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98 ["luarocks"] = "luarocks install luabitop"; |
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99 ["Source"] = "http://bitop.luajit.org/"; |
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100 }, "WebSocket support will not be available"); |
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101 end |
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102 |
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103 local encodings, err = softreq "util.encodings" |
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104 if not encodings then |
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105 if err:match("module '[^']*' not found") then |
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106 missingdep("util.encodings", { |
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107 ["Windows"] = "Make sure you have encodings.dll from the Prosody distribution in util/"; |
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108 ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so"; |
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109 }); |
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110 else |
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111 print "***********************************" |
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112 print("util/encodings couldn't be loaded. Check that you have a recent version of libidn"); |
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113 print "" |
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114 print("The full error was:"); |
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115 print(err) |
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116 print "***********************************" |
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117 end |
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118 fatal = true; |
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119 end |
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120 |
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121 local hashes, err = softreq "util.hashes" |
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122 if not hashes then |
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123 if err:match("module '[^']*' not found") then |
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124 missingdep("util.hashes", { |
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125 ["Windows"] = "Make sure you have hashes.dll from the Prosody distribution in util/"; |
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126 ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so"; |
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127 }); |
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128 else |
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129 print "***********************************" |
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130 print("util/hashes couldn't be loaded. Check that you have a recent version of OpenSSL (libcrypto in particular)"); |
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131 print "" |
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132 print("The full error was:"); |
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133 print(err) |
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134 print "***********************************" |
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135 end |
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136 fatal = true; |
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137 end |
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138 |
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139 return not fatal; |
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140 end |
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141 |
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142 local function log_warnings() |
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143 if _VERSION > "Lua 5.3" then |
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144 prosody.log("warn", "Support for %s is experimental, please report any issues", _VERSION); |
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145 end |
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146 local ssl = softreq"ssl"; |
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147 if ssl then |
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148 local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)"); |
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149 if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then |
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150 prosody.log("error", "This version of LuaSec contains a known bug that causes disconnects, see https://prosody.im/doc/depends"); |
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151 end |
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152 end |
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153 local lxp = softreq"lxp"; |
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154 if lxp then |
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155 if not pcall(lxp.new, { StartDoctypeDecl = false }) then |
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156 prosody.log("error", "The version of LuaExpat on your system leaves Prosody " |
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157 .."vulnerable to denial-of-service attacks. You should upgrade to " |
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158 .."LuaExpat 1.3.0 or higher as soon as possible. See " |
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159 .."https://prosody.im/doc/depends#luaexpat for more information."); |
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160 end |
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161 if not lxp.new({}).getcurrentbytecount then |
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162 prosody.log("error", "The version of LuaExpat on your system does not support " |
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163 .."stanza size limits, which may leave servers on untrusted " |
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164 .."networks (e.g. the internet) vulnerable to denial-of-service " |
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165 .."attacks. You should upgrade to LuaExpat 1.3.0 or higher as " |
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166 .."soon as possible. See " |
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167 .."https://prosody.im/doc/depends#luaexpat for more information."); |
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168 end |
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169 end |
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170 end |
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171 |
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172 return { |
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173 softreq = softreq; |
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174 missingdep = missingdep; |
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175 check_dependencies = check_dependencies; |
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176 log_warnings = log_warnings; |
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177 }; |