prosody
51ed468662a1
util/dependencies.lua

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util/dependencies.lua @ 4781:51ed468662a1

Merge with Zash
author Matthew Wild <mwild1@gmail.com>
date Sat, 28 Apr 2012 16:22:17 +0100
parent 4426:ee65aa40ef60
child 5776:bd0ff8ae98a8
child 6043:29d2dd705148
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Prosody IM
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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 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 module("dependencies", package.seeall)
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10
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11 function softreq(...) local ok, lib = pcall(require, ...); if ok then return lib; else return nil, lib; end end
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12
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13 -- Required to be able to find packages installed with luarocks
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14 if not softreq "luarocks.loader" then -- LuaRocks 2.x
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15 softreq "luarocks.require"; -- LuaRocks <1.x
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16 end
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17
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18 function missingdep(name, sources, msg)
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19 print("");
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20 print("**************************");
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21 print("Prosody was unable to find "..tostring(name));
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22 print("This package can be obtained in the following ways:");
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23 print("");
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24 local longest_platform = 0;
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25 for platform in pairs(sources) do
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26 longest_platform = math.max(longest_platform, #platform);
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27 end
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28 for platform, source in pairs(sources) do
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29 print("", platform..":"..(" "):rep(4+longest_platform-#platform)..source);
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30 end
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31 print("");
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32 print(msg or (name.." is required for Prosody to run, so we will now exit."));
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33 print("More help can be found on our website, at http://prosody.im/doc/depends");
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34 print("**************************");
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35 print("");
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36 end
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37
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38 -- COMPAT w/pre-0.8 Debian: The Debian config file used to use
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39 -- util.ztact, which has been removed from Prosody in 0.8. This
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40 -- is to log an error for people who still use it, so they can
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41 -- update their configs.
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42 package.preload["util.ztact"] = function ()
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43 if not package.loaded["core.loggingmanager"] then
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44 error("util.ztact has been removed from Prosody and you need to fix your config "
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45 .."file. More information can be found at http://prosody.im/doc/packagers#ztact", 0);
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46 else
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47 error("module 'util.ztact' has been deprecated in Prosody 0.8.");
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48 end
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49 end;
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50
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51 function check_dependencies()
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52 local fatal;
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53
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54 local lxp = softreq "lxp"
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55
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56 if not lxp then
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57 missingdep("luaexpat", {
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58 ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-expat0";
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59 ["luarocks"] = "luarocks install luaexpat";
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60 ["Source"] = "http://www.keplerproject.org/luaexpat/";
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61 });
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62 fatal = true;
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63 end
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64
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65 local socket = softreq "socket"
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66
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67 if not socket then
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68 missingdep("luasocket", {
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69 ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-socket2";
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70 ["luarocks"] = "luarocks install luasocket";
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71 ["Source"] = "http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/";
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72 });
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73 fatal = true;
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74 end
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75
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76 local lfs, err = softreq "lfs"
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77 if not lfs then
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78 missingdep("luafilesystem", {
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79 ["luarocks"] = "luarocks install luafilesystem";
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80 ["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-filesystem0";
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81 ["Source"] = "http://www.keplerproject.org/luafilesystem/";
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82 });
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83 fatal = true;
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84 end
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85
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86 local ssl = softreq "ssl"
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87
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88 if not ssl then
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89 missingdep("LuaSec", {
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90 ["Debian/Ubuntu"] = "http://prosody.im/download/start#debian_and_ubuntu";
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91 ["luarocks"] = "luarocks install luasec";
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92 ["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/";
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93 }, "SSL/TLS support will not be available");
413
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94 end
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95
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96 local encodings, err = softreq "util.encodings"
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97 if not encodings then
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98 if err:match("not found") then
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99 missingdep("util.encodings", { ["Windows"] = "Make sure you have encodings.dll from the Prosody distribution in util/";
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100 ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/encodings.so";
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101 });
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102 else
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103 print "***********************************"
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104 print("util/encodings couldn't be loaded. Check that you have a recent version of libidn");
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105 print ""
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106 print("The full error was:");
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107 print(err)
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108 print "***********************************"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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109 end
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110 fatal = true;
2169
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111 end
408
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112
2510
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113 local hashes, err = softreq "util.hashes"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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114 if not hashes then
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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115 if err:match("not found") then
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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116 missingdep("util.hashes", { ["Windows"] = "Make sure you have hashes.dll from the Prosody distribution in util/";
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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117 ["GNU/Linux"] = "Run './configure' and 'make' in the Prosody source directory to build util/hashes.so";
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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118 });
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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parents: 2299
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119 else
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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120 print "***********************************"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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121 print("util/hashes couldn't be loaded. Check that you have a recent version of OpenSSL (libcrypto in particular)");
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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122 print ""
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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123 print("The full error was:");
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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124 print(err)
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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125 print "***********************************"
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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parents: 2299
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126 end
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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127 fatal = true;
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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128 end
97b5ea975cb9 util.dependencies, prosody, prosodyctl: Give util.dependencies a check_dependencies() function so the caller can decide what to do when dependencies aren't met - update prosody/prosodyctl for this change
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129 return not fatal;
408
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130 end
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131
3904
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132 function log_warnings()
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133 if ssl then
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134 local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)");
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135 if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then
f93163081b3c prosody, prosodyctl, util.dependencies: Split checking and logging of dependencies so we can check hard deps before the config and logging is loaded
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136 log("error", "This version of LuaSec contains a known bug that causes disconnects, see http://prosody.im/doc/depends");
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137 end
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138 end
4426
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Waqas Hussain <waqas20@gmail.com>
parents: 4236
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139 if lxp then
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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parents: 4236
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140 if not pcall(lxp.new, { StartDoctypeDecl = false }) then
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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141 log("error", "The version of LuaExpat on your system leaves Prosody "
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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142 .."vulnerable to denial-of-service attacks. You should upgrade to "
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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143 .."LuaExpat 1.1.1 or higher as soon as possible. See "
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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144 .."http://prosody.im/doc/depends#luaexpat for more information.");
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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145 end
ee65aa40ef60 util.dependencies, util.xmppstream: Move LuaExpat version checking to util.dependencies.
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146 end
3904
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147 end
742
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148
2510
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diff changeset
149 return _M;