1 | <?xml version="1.0" encoding="UTF-8"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!ENTITY gnutls-download-http "&gnupg-http;/gnutls/v3.8/gnutls-&gnutls-version;.tar.xz">
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8 | <!ENTITY gnutls-download-ftp " ">
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9 | <!ENTITY gnutls-md5sum "74b468201ef7e9035f78d44c3f0906c4">
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10 | <!ENTITY gnutls-size "6.2 MB">
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11 | <!ENTITY gnutls-buildsize "147 MB (add 114 MB for tests)">
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12 | <!ENTITY gnutls-time "0.6 SBU (add 1.4 SBU for tests; both using parallelism=8)">
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13 | ]>
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14 |
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15 | <sect1 id="gnutls" xreflabel="GnuTLS-&gnutls-version;">
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16 | <?dbhtml filename="gnutls.html"?>
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17 |
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18 |
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19 | <title>GnuTLS-&gnutls-version;</title>
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20 |
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21 | <indexterm zone="gnutls">
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22 | <primary sortas="a-GnuTLS">GnuTLS</primary>
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23 | </indexterm>
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24 |
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25 | <sect2 role="package">
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26 | <title>Introduction to GnuTLS</title>
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27 |
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28 | <para>
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29 | The <application>GnuTLS</application> package contains libraries and
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30 | userspace tools which provide a secure layer over a reliable transport
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31 | layer. Currently the <application>GnuTLS</application> library implements
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32 | the proposed standards by the IETF's TLS working group. Quoting from the
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33 | <ulink url="https://datatracker.ietf.org/doc/rfc8446/">
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34 | TLS 1.3 protocol specification
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35 | </ulink>:
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36 | </para>
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37 |
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38 | <para>
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39 | <quote>
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40 | TLS allows client/server applications to communicate over the Internet
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41 | in a way that is designed to prevent eavesdropping, tampering, and
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42 | message forgery.
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43 | </quote>
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44 | </para>
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45 |
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46 | <para>
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47 | <application>GnuTLS</application> provides support for TLS 1.3, TLS 1.2,
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48 | TLS 1.1, TLS 1.0, and (optionally) SSL 3.0 protocols. It also supports
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49 | TLS extensions, including server name and max record size. Additionally,
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50 | the library supports authentication using the SRP protocol, X.509
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51 | certificates, and OpenPGP keys, along with support for the TLS
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52 | Pre-Shared-Keys (PSK) extension, the Inner Application (TLS/IA)
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53 | extension, and X.509 and OpenPGP certificate handling.
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54 | </para>
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55 |
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56 | &lfs121_checked;
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57 |
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58 | <bridgehead renderas="sect3">Package Information</bridgehead>
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59 | <itemizedlist spacing="compact">
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60 | <listitem>
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61 | <para>
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62 | Download (HTTP): <ulink url="&gnutls-download-http;"/>
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63 | </para>
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64 | </listitem>
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65 | <listitem>
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66 | <para>
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67 | Download (FTP): <ulink url="&gnutls-download-ftp;"/>
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68 | </para>
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69 | </listitem>
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70 | <listitem>
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71 | <para>
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72 | Download MD5 sum: &gnutls-md5sum;
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73 | </para>
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74 | </listitem>
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75 | <listitem>
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76 | <para>
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77 | Download size: &gnutls-size;
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78 | </para>
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79 | </listitem>
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80 | <listitem>
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81 | <para>
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82 | Estimated disk space required: &gnutls-buildsize;
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83 | </para>
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84 | </listitem>
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85 | <listitem>
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86 | <para>
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87 | Estimated build time: &gnutls-time;
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88 | </para>
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89 | </listitem>
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90 | </itemizedlist>
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91 |
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92 | <bridgehead renderas="sect3">GnuTLS Dependencies</bridgehead>
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93 |
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94 | <bridgehead renderas="sect4">Required</bridgehead>
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95 | <para role="required">
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96 | <xref linkend="nettle"/>
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97 | </para>
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98 |
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99 | <bridgehead renderas="sect4">Recommended</bridgehead>
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100 | <para role="recommended">
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101 | <xref linkend="make-ca"/>,
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102 | <xref linkend="libunistring"/>,
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103 | <xref linkend="libtasn1"/>, and
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104 | <xref linkend="p11-kit"/>
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105 | </para>
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106 |
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107 | <bridgehead renderas="sect4">Optional</bridgehead>
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108 | <para role="optional">
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109 | <xref linkend="brotli"/>,
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110 | <xref linkend="doxygen"/>,
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111 | <xref linkend="gtk-doc"/>,
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112 | <xref linkend="libidn"/> or
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113 | <xref linkend="libidn2"/>,
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114 | <xref linkend="libseccomp"/>,
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115 | <xref linkend="net-tools"/> (used during the test suite),
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116 | <xref linkend="texlive"/> or <xref linkend="tl-installer"/>,
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117 | <xref linkend="unbound"/> (to build the DANE library),
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118 | <xref linkend="valgrind"/> (used during the test suite),
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119 | <ulink url="&gnu-http;/autogen/">autogen</ulink>,
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120 | <ulink url="https://cmocka.org/">cmocka</ulink> and
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121 | <ulink url="https://ftp.debian.org/debian/pool/main/d/datefudge/">datefudge</ulink> (used during the test suite if the DANE library is built), and
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122 | <ulink url="&sourceforge-dl;/trousers/">Trousers</ulink> (Trusted Platform Module support)
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123 | </para>
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124 |
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125 | <note><para>
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126 | <!-- Note that if you do not install <xref linkend="libtasn1"/>, an older
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127 | 3.8.0 includes minitasn1 4.19 which is currnet at the moment. ken -->
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128 | Note that if you do not install <xref linkend="libtasn1"/>, a
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129 | version shipped in the <application>GnuTLS</application> tarball will be
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130 | used instead.
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131 | </para></note>
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132 |
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133 | </sect2>
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134 |
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135 | <sect2 role="installation">
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136 | <title>Installation of GnuTLS</title>
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137 |
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138 | <para>
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139 | Install <application>GnuTLS</application> by running the
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140 | following commands:
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141 | </para>
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142 |
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143 | <screen><userinput>./configure --prefix=/usr \
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144 | --docdir=/usr/share/doc/gnutls-&gnutls-version; \
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145 | --with-default-trust-store-pkcs11="pkcs11:" &&
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146 | make</userinput></screen>
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147 | <!-- - -disable-rpath \
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148 | Old gnutls versions (around 3.5) had a problem with rpath, because
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149 | libraries in the build tree were linked with rpath pointing to the
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150 | system libraries, so that tests failed. Present versions don't have
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151 | this problem, and do exactly what is expected without using the
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152 | disable-rpath option: rpath pointing to the build tree when libraries
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153 | are first linked, but rpath removed when libraries are relinked at
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154 | install time. -->
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155 |
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156 | <para>
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157 | To test the results, issue: <command>make check</command>.
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158 | </para>
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159 |
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160 | <para>
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161 | Now, as the <systemitem class="username">root</systemitem>
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162 | user:
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163 | </para>
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164 |
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165 | <screen role="root"><userinput>make install</userinput></screen>
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166 |
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167 | </sect2>
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168 |
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169 | <sect2 role="commands">
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170 | <title>Command Explanations</title>
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171 |
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172 | <para>
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173 | <parameter>--with-default-trust-store-pkcs11="pkcs11:"</parameter>: This
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174 | switch tells gnutls to use the PKCS #11 trust store as the default trust.
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175 | Omit this switch if <xref linkend="p11-kit"/> is not installed.
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176 | </para>
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177 | <!-- see above
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178 | <para>
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179 | <parameter>- -disable-rpath</parameter>: This switch prevents building
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180 | GnuTLS utilities and tests with hardcoded runtime library search path.
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181 | Hardcoded rpath is unneeded for BLFS, and it causes test failures if
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182 | an old version of GnuTLS is installed.
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183 | </para>
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184 | -->
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185 | <para>
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186 | <option>--with-default-trust-store-file=/etc/pki/tls/certs/ca-bundle.crt</option>:
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187 | This switch tells <command>configure</command> where to find the
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188 | legacy CA certificate bundle and to use it instead of PKCS #11 module
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189 | by default. Use this if <xref linkend="p11-kit"/> is not installed.
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190 | </para>
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191 |
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192 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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193 | href="../../xincludes/gtk-doc-rebuild.xml"/>
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194 |
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195 | <para>
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196 | <option>--enable-openssl-compatibility</option>:
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197 | Use this switch if you wish to build the OpenSSL compatibility library.
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198 | </para>
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199 |
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200 | <para>
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201 | <option>--without-p11-kit</option>: use this switch if you have not
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202 | installed <application>p11-kit</application>.
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203 | </para>
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204 |
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205 | <para>
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206 | <option>--with-included-unistring</option>: uses the bundled version of
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207 | libunistring, instead of the system one. Use this switch if you have not
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208 | installed <xref linkend="libunistring"/>.
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209 | </para>
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210 |
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211 | </sect2>
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212 |
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213 | <sect2 role="content">
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214 | <title>Contents</title>
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215 |
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216 | <segmentedlist>
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217 | <segtitle>Installed Programs</segtitle>
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218 | <segtitle>Installed Libraries</segtitle>
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219 | <segtitle>Installed Directories</segtitle>
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220 |
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221 | <seglistitem>
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222 | <seg>
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223 | certtool, danetool, gnutls-cli, gnutls-cli-debug,
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224 | gnutls-serv, ocsptool, p11tool, psktool, and srptool
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225 | </seg>
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226 | <seg>
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227 | libgnutls.so, libgnutls-dane.so, libgnutlsxx.so,
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228 | libgnutls-openssl.so (optional), and
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229 | /usr/lib/guile/3.0/extensions/guile-gnutls-v-2.so
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230 | </seg>
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231 | <seg>
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232 | /usr/include/gnutls,
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233 | /usr/lib/guile/3.0/site-ccache/gnutls,
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234 | /usr/share/guile/site/3.0/gnutls, and
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235 | /usr/share/doc/gnutls-&gnutls-version;
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236 | </seg>
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237 | </seglistitem>
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238 | </segmentedlist>
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239 |
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240 | <variablelist>
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241 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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242 | <?dbfo list-presentation="list"?>
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243 | <?dbhtml list-presentation="table"?>
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244 |
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245 | <varlistentry id="certtool">
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246 | <term><command>certtool</command></term>
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247 | <listitem>
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248 | <para>
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249 | is used to generate X.509 certificates, certificate requests,
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250 | and private keys
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251 | </para>
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252 | <indexterm zone="gnutls certtool">
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253 | <primary sortas="b-certtool">certtool</primary>
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254 | </indexterm>
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255 | </listitem>
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256 | </varlistentry>
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257 |
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258 | <varlistentry id="danetool">
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259 | <term><command>danetool</command></term>
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260 | <listitem>
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261 | <para>
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262 | is a tool used to generate and check DNS resource records
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263 | for the DANE protocol
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264 | </para>
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265 | <indexterm zone="gnutls danetool">
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266 | <primary sortas="b-danetool">danetool</primary>
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267 | </indexterm>
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268 | </listitem>
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269 | </varlistentry>
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270 |
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271 | <varlistentry id="gnutls-cli">
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272 | <term><command>gnutls-cli</command></term>
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273 | <listitem>
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274 | <para>
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275 | is a simple client program to set up a TLS connection to some
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276 | other computer
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277 | </para>
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278 | <indexterm zone="gnutls gnutls-cli">
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279 | <primary sortas="b-gnutls-cli">gnutls-cli</primary>
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280 | </indexterm>
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281 | </listitem>
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282 | </varlistentry>
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283 |
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284 | <varlistentry id="gnutls-cli-debug">
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285 | <term><command>gnutls-cli-debug</command></term>
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286 | <listitem>
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287 | <para>
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288 | is a simple client program to set up a TLS connection to some
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289 | other computer and produces very verbose progress results
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290 | </para>
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291 | <indexterm zone="gnutls gnutls-cli-debug">
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292 | <primary sortas="b-gnutls-cli-debug">gnutls-cli-debug</primary>
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293 | </indexterm>
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294 | </listitem>
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295 | </varlistentry>
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296 |
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297 | <varlistentry id="gnutls-serv">
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298 | <term><command>gnutls-serv</command></term>
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299 | <listitem>
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300 | <para>
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301 | is a simple server program that listens to incoming TLS
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302 | connections
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303 | </para>
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304 | <indexterm zone="gnutls gnutls-serv">
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305 | <primary sortas="b-gnutls-serv">gnutls-serv</primary>
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306 | </indexterm>
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307 | </listitem>
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308 | </varlistentry>
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309 |
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310 | <varlistentry id="ocsptool">
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311 | <term><command>ocsptool</command></term>
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312 | <listitem>
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313 | <para>
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314 | is a program that can parse and print information about OCSP
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315 | requests/responses, generate requests and verify responses
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316 | </para>
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317 | <indexterm zone="gnutls ocsptool">
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318 | <primary sortas="b-ocsptool">ocsptool</primary>
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319 | </indexterm>
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320 | </listitem>
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321 | </varlistentry>
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322 |
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323 | <varlistentry id="p11tool">
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324 | <term><command>p11tool</command></term>
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325 | <listitem>
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326 | <para>
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327 | is a program that allows handling data from PKCS #11 smart cards
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328 | and security modules
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329 | </para>
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330 | <indexterm zone="gnutls p11tool">
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331 | <primary sortas="b-p11tool">p11tool</primary>
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332 | </indexterm>
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333 | </listitem>
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334 | </varlistentry>
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335 |
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336 | <varlistentry id="psktool">
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337 | <term><command>psktool</command></term>
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338 | <listitem>
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339 | <para>
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340 | is a simple program that generates random keys for use with TLS-PSK
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341 | </para>
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342 | <indexterm zone="gnutls psktool">
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343 | <primary sortas="b-psktool">psktool</primary>
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344 | </indexterm>
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345 | </listitem>
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346 | </varlistentry>
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347 |
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348 | <varlistentry id="srptool">
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349 | <term><command>srptool</command></term>
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350 | <listitem>
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351 | <para>
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352 | is a simple program that emulates the programs in the Stanford
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353 | SRP (Secure Remote Password) libraries using GnuTLS
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354 | </para>
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355 | <indexterm zone="gnutls srptool">
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356 | <primary sortas="b-srptool">srptool</primary>
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357 | </indexterm>
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358 | </listitem>
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359 | </varlistentry>
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360 |
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361 | <varlistentry id="libgnutls">
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362 | <term><filename class="libraryfile">libgnutls.so</filename></term>
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363 | <listitem>
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364 | <para>
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365 | contains the core API functions and X.509 certificate API functions
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366 | </para>
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367 | <indexterm zone="gnutls libgnutls">
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368 | <primary sortas="c-libgnutls">libgnutls.so</primary>
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369 | </indexterm>
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370 | </listitem>
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371 | </varlistentry>
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372 |
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373 | </variablelist>
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374 |
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375 | </sect2>
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376 |
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377 | </sect1>
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