[331] | 1 |
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| 2 | OPENSSL INSTALLATION
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| 3 | --------------------
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| 4 |
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| 5 | This document describes installation on all supported operating
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| 6 | systems (the Linux/Unix family, OpenVMS and Windows)
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| 7 |
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| 8 | To install OpenSSL, you will need:
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| 9 |
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| 10 | * A make implementation
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| 11 | * Perl 5 with core modules (please read NOTES.PERL)
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| 12 | * The perl module Text::Template (please read NOTES.PERL)
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| 13 | * an ANSI C compiler
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| 14 | * a development environment in the form of development libraries and C
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| 15 | header files
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| 16 | * a supported operating system
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| 17 |
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| 18 | For additional platform specific requirements, solutions to specific
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| 19 | issues and other details, please read one of these:
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| 20 |
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| 21 | * NOTES.VMS (OpenVMS)
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| 22 | * NOTES.WIN (any supported Windows)
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| 23 | * NOTES.DJGPP (DOS platform with DJGPP)
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| 24 |
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| 25 | Notational conventions in this document
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| 26 | ---------------------------------------
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| 27 |
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| 28 | Throughout this document, we use the following conventions in command
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| 29 | examples:
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| 30 |
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| 31 | $ command Any line starting with a dollar sign
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| 32 | ($) is a command line.
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| 33 |
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| 34 | { word1 | word2 | word3 } This denotes a mandatory choice, to be
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| 35 | replaced with one of the given words.
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| 36 | A simple example would be this:
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| 37 |
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| 38 | $ echo { FOO | BAR | COOKIE }
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| 39 |
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| 40 | which is to be understood as one of
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| 41 | these:
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| 42 |
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| 43 | $ echo FOO
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| 44 | - or -
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| 45 | $ echo BAR
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| 46 | - or -
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| 47 | $ echo COOKIE
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| 48 |
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| 49 | [ word1 | word2 | word3 ] Similar to { word1 | word2 | word3 }
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| 50 | except it's optional to give any of
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| 51 | those. In addition to the examples
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| 52 | above, this would also be valid:
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| 53 |
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| 54 | $ echo
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| 55 |
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| 56 | {{ target }} This denotes a mandatory word or
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| 57 | sequence of words of some sort. A
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| 58 | simple example would be this:
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| 59 |
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| 60 | $ type {{ filename }}
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| 61 |
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| 62 | which is to be understood to use the
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| 63 | command 'type' on some file name
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| 64 | determined by the user.
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| 65 |
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| 66 | [[ options ]] Similar to {{ target }}, but is
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| 67 | optional.
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| 68 |
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| 69 | Note that the notation assumes spaces around {, }, [, ], {{, }} and
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| 70 | [[, ]]. This is to differentiate from OpenVMS directory
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| 71 | specifications, which also use [ and ], but without spaces.
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| 72 |
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| 73 | Quick Start
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| 74 | -----------
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| 75 |
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| 76 | If you want to just get on with it, do:
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| 77 |
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| 78 | on Unix:
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| 79 |
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| 80 | $ ./config
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| 81 | $ make
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| 82 | $ make test
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| 83 | $ make install
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| 84 |
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| 85 | on OpenVMS:
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| 86 |
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| 87 | $ @config
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| 88 | $ mms
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| 89 | $ mms test
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| 90 | $ mms install
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| 91 |
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| 92 | on Windows (only pick one of the targets for configuration):
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| 93 |
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| 94 | $ perl Configure { VC-WIN32 | VC-WIN64A | VC-WIN64I | VC-CE }
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| 95 | $ nmake
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| 96 | $ nmake test
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| 97 | $ nmake install
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| 98 |
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| 99 | If any of these steps fails, see section Installation in Detail below.
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| 100 |
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| 101 | This will build and install OpenSSL in the default location, which is:
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| 102 |
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| 103 | Unix: normal installation directories under /usr/local
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| 104 | OpenVMS: SYS$COMMON:[OPENSSL-'version'...], where 'version' is the
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| 105 | OpenSSL version number with underscores instead of periods.
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| 106 | Windows: C:\Program Files\OpenSSL or C:\Program Files (x86)\OpenSSL
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| 107 |
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| 108 | If you want to install it anywhere else, run config like this:
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| 109 |
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| 110 | On Unix:
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| 111 |
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| 112 | $ ./config --prefix=/opt/openssl --openssldir=/usr/local/ssl
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| 113 |
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| 114 | On OpenVMS:
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| 115 |
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| 116 | $ @config --prefix=PROGRAM:[INSTALLS] --openssldir=SYS$MANAGER:[OPENSSL]
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| 117 |
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| 118 |
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| 119 | Configuration Options
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| 120 | ---------------------
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| 121 |
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| 122 | There are several options to ./config (or ./Configure) to customize
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| 123 | the build (note that for Windows, the defaults for --prefix and
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| 124 | --openssldir depend in what configuration is used and what Windows
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| 125 | implementation OpenSSL is built on. More notes on this in NOTES.WIN):
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| 126 |
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| 127 | --api=x.y.z
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| 128 | Don't build with support for deprecated APIs below the
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| 129 | specified version number. For example "--api=1.1.0" will
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| 130 | remove support for all APIS that were deprecated in OpenSSL
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| 131 | version 1.1.0 or below.
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| 132 |
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| 133 | --cross-compile-prefix=PREFIX
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| 134 | The PREFIX to include in front of commands for your
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| 135 | toolchain. It's likely to have to end with dash, e.g.
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| 136 | a-b-c- would invoke GNU compiler as a-b-c-gcc, etc.
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| 137 | Unfortunately cross-compiling is too case-specific to
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| 138 | put together one-size-fits-all instructions. You might
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| 139 | have to pass more flags or set up environment variables
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| 140 | to actually make it work. Android and iOS cases are
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| 141 | discussed in corresponding Configurations/10-main.cf
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| 142 | sections. But there are cases when this option alone is
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| 143 | sufficient. For example to build the mingw64 target on
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| 144 | Linux "--cross-compile-prefix=x86_64-w64-mingw32-"
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| 145 | works. Naturally provided that mingw packages are
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| 146 | installed. Today Debian and Ubuntu users have option to
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| 147 | install a number of prepackaged cross-compilers along
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| 148 | with corresponding run-time and development packages for
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| 149 | "alien" hardware. To give another example
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| 150 | "--cross-compile-prefix=mipsel-linux-gnu-" suffices
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| 151 | in such case. Needless to mention that you have to
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| 152 | invoke ./Configure, not ./config, and pass your target
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| 153 | name explicitly.
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| 154 |
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| 155 | --debug
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| 156 | Build OpenSSL with debugging symbols.
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| 157 |
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| 158 | --libdir=DIR
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| 159 | The name of the directory under the top of the installation
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| 160 | directory tree (see the --prefix option) where libraries will
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| 161 | be installed. By default this is "lib". Note that on Windows
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| 162 | only ".lib" files will be stored in this location. dll files
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| 163 | will always be installed to the "bin" directory.
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| 164 |
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| 165 | --openssldir=DIR
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| 166 | Directory for OpenSSL configuration files, and also the
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| 167 | default certificate and key store. Defaults are:
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| 168 |
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| 169 | Unix: /usr/local/ssl
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| 170 | Windows: C:\Program Files\Common Files\SSL
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| 171 | or C:\Program Files (x86)\Common Files\SSL
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| 172 | OpenVMS: SYS$COMMON:[OPENSSL-COMMON]
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| 173 |
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| 174 | --prefix=DIR
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| 175 | The top of the installation directory tree. Defaults are:
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| 176 |
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| 177 | Unix: /usr/local
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| 178 | Windows: C:\Program Files\OpenSSL
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| 179 | or C:\Program Files (x86)\OpenSSL
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| 180 | OpenVMS: SYS$COMMON:[OPENSSL-'version']
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| 181 |
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| 182 | --release
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| 183 | Build OpenSSL without debugging symbols. This is the default.
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| 184 |
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| 185 | --strict-warnings
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| 186 | This is a developer flag that switches on various compiler
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| 187 | options recommended for OpenSSL development. It only works
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| 188 | when using gcc or clang as the compiler. If you are
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| 189 | developing a patch for OpenSSL then it is recommended that
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| 190 | you use this option where possible.
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| 191 |
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| 192 | --with-zlib-include=DIR
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| 193 | The directory for the location of the zlib include file. This
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| 194 | option is only necessary if enable-zlib (see below) is used
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| 195 | and the include file is not already on the system include
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| 196 | path.
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| 197 |
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| 198 | --with-zlib-lib=LIB
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| 199 | On Unix: this is the directory containing the zlib library.
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| 200 | If not provided the system library path will be used.
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| 201 | On Windows: this is the filename of the zlib library (with or
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| 202 | without a path). This flag must be provided if the
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| 203 | zlib-dynamic option is not also used. If zlib-dynamic is used
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| 204 | then this flag is optional and a default value ("ZLIB1") is
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| 205 | used if not provided.
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| 206 | On VMS: this is the filename of the zlib library (with or
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| 207 | without a path). This flag is optional and if not provided
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| 208 | then "GNV$LIBZSHR", "GNV$LIBZSHR32" or "GNV$LIBZSHR64" is
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| 209 | used by default depending on the pointer size chosen.
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| 210 |
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| 211 | no-afalgeng
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| 212 | Don't build the AFALG engine. This option will be forced if
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| 213 | on a platform that does not support AFALG.
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| 214 |
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| 215 | enable-asan
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| 216 | Build with the Address sanitiser. This is a developer option
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| 217 | only. It may not work on all platforms and should never be
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| 218 | used in production environments. It will only work when used
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| 219 | with gcc or clang and should be used in conjunction with the
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| 220 | no-shared option.
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| 221 |
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| 222 | no-asm
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| 223 | Do not use assembler code. On some platforms a small amount
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| 224 | of assembler code may still be used.
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| 225 |
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| 226 | no-async
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| 227 | Do not build support for async operations.
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| 228 |
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| 229 | no-autoalginit
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| 230 | Don't automatically load all supported ciphers and digests.
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| 231 | Typically OpenSSL will make available all of its supported
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| 232 | ciphers and digests. For a statically linked application this
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| 233 | may be undesirable if small executable size is an objective.
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| 234 | This only affects libcrypto. Ciphers and digests will have to
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| 235 | be loaded manually using EVP_add_cipher() and
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| 236 | EVP_add_digest() if this option is used. This option will
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| 237 | force a non-shared build.
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| 238 |
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| 239 | no-autoerrinit
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| 240 | Don't automatically load all libcrypto/libssl error strings.
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| 241 | Typically OpenSSL will automatically load human readable
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| 242 | error strings. For a statically linked application this may
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| 243 | be undesirable if small executable size is an objective.
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| 244 |
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| 245 |
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| 246 | no-capieng
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| 247 | Don't build the CAPI engine. This option will be forced if
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| 248 | on a platform that does not support CAPI.
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| 249 |
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| 250 | no-cms
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| 251 | Don't build support for CMS features
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| 252 |
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| 253 | no-comp
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| 254 | Don't build support for SSL/TLS compression. If this option
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| 255 | is left enabled (the default), then compression will only
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| 256 | work if the zlib or zlib-dynamic options are also chosen.
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| 257 |
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| 258 | enable-crypto-mdebug
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| 259 | Build support for debugging memory allocated via
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| 260 | OPENSSL_malloc() or OPENSSL_zalloc().
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| 261 |
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| 262 | enable-crypto-mdebug-backtrace
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| 263 | As for crypto-mdebug, but additionally provide backtrace
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| 264 | information for allocated memory.
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| 265 | TO BE USED WITH CARE: this uses GNU C functionality, and
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| 266 | is therefore not usable for non-GNU config targets. If
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| 267 | your build complains about the use of '-rdynamic' or the
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| 268 | lack of header file execinfo.h, this option is not for you.
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| 269 | ALSO NOTE that even though execinfo.h is available on your
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| 270 | system (through Gnulib), the functions might just be stubs
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| 271 | that do nothing.
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| 272 |
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| 273 | no-ct
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| 274 | Don't build support for Certificate Transparency.
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| 275 |
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| 276 | no-deprecated
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| 277 | Don't build with support for any deprecated APIs. This is the
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| 278 | same as using "--api" and supplying the latest version
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| 279 | number.
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| 280 |
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| 281 | no-dgram
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| 282 | Don't build support for datagram based BIOs. Selecting this
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| 283 | option will also force the disabling of DTLS.
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| 284 |
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| 285 | no-dso
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| 286 | Don't build support for loading Dynamic Shared Objects.
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| 287 |
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| 288 | no-dynamic-engine
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| 289 | Don't build the dynamically loaded engines. This only has an
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| 290 | effect in a "shared" build
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| 291 |
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| 292 | no-ec
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| 293 | Don't build support for Elliptic Curves.
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| 294 |
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| 295 | no-ec2m
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| 296 | Don't build support for binary Elliptic Curves
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| 297 |
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| 298 | enable-ec_nistp_64_gcc_128
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| 299 | Enable support for optimised implementations of some commonly
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| 300 | used NIST elliptic curves. This is only supported on some
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| 301 | platforms.
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| 302 |
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| 303 | enable-egd
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| 304 | Build support for gathering entropy from EGD (Entropy
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| 305 | Gathering Daemon).
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| 306 |
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| 307 | no-engine
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| 308 | Don't build support for loading engines.
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| 309 |
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| 310 | no-err
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| 311 | Don't compile in any error strings.
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| 312 |
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| 313 | no-filenames
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| 314 | Don't compile in filename and line number information (e.g.
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| 315 | for errors and memory allocation).
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| 316 |
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| 317 | enable-fuzz-libfuzzer, enable-fuzz-afl
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| 318 | Build with support for fuzzing using either libfuzzer or AFL.
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| 319 | These are developer options only. They may not work on all
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| 320 | platforms and should never be used in production environments.
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| 321 | See the file fuzz/README.md for further details.
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| 322 |
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| 323 | no-gost
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| 324 | Don't build support for GOST based ciphersuites. Note that
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| 325 | if this feature is enabled then GOST ciphersuites are only
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| 326 | available if the GOST algorithms are also available through
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| 327 | loading an externally supplied engine.
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| 328 |
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| 329 | enable-heartbeats
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| 330 | Build support for DTLS heartbeats.
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| 331 |
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| 332 | no-hw-padlock
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| 333 | Don't build the padlock engine.
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| 334 |
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| 335 | no-makedepend
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| 336 | Don't generate dependencies.
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| 337 |
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| 338 | no-multiblock
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| 339 | Don't build support for writing multiple records in one
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| 340 | go in libssl (Note: this is a different capability to the
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| 341 | pipelining functionality).
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| 342 |
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| 343 | no-nextprotoneg
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| 344 | Don't build support for the NPN TLS extension.
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| 345 |
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| 346 | no-ocsp
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| 347 | Don't build support for OCSP.
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| 348 |
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| 349 | no-pic
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| 350 | Don't build with support for Position Independent Code.
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| 351 |
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| 352 | no-posix-io
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| 353 | Don't use POSIX IO capabilities.
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| 354 |
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| 355 | no-psk
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| 356 | Don't build support for Pre-Shared Key based ciphersuites.
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| 357 |
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| 358 | no-rdrand
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| 359 | Don't use hardware RDRAND capabilities.
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| 360 |
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| 361 | no-rfc3779
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| 362 | Don't build support for RFC3779 ("X.509 Extensions for IP
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| 363 | Addresses and AS Identifiers")
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| 364 |
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| 365 | sctp
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| 366 | Build support for SCTP
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| 367 |
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| 368 | no-shared
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| 369 | Do not create shared libraries, only static ones. See "Note
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| 370 | on shared libraries" below.
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| 371 |
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| 372 | no-sock
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| 373 | Don't build support for socket BIOs
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| 374 |
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| 375 | no-srp
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| 376 | Don't build support for SRP or SRP based ciphersuites.
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| 377 |
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| 378 | no-srtp
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| 379 | Don't build SRTP support
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| 380 |
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| 381 | no-sse2
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| 382 | Exclude SSE2 code paths from 32-bit x86 assembly modules.
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| 383 | Normally SSE2 extension is detected at run-time, but the
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| 384 | decision whether or not the machine code will be executed
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| 385 | is taken solely on CPU capability vector. This means that
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| 386 | if you happen to run OS kernel which does not support SSE2
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| 387 | extension on Intel P4 processor, then your application
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| 388 | might be exposed to "illegal instruction" exception.
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| 389 | There might be a way to enable support in kernel, e.g.
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| 390 | FreeBSD kernel can be compiled with CPU_ENABLE_SSE, and
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| 391 | there is a way to disengage SSE2 code paths upon application
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| 392 | start-up, but if you aim for wider "audience" running
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| 393 | such kernel, consider no-sse2. Both the 386 and
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| 394 | no-asm options imply no-sse2.
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| 395 |
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| 396 | enable-ssl-trace
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| 397 | Build with the SSL Trace capabilities (adds the "-trace"
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| 398 | option to s_client and s_server).
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| 399 |
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| 400 | no-static-engine
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| 401 | Don't build the statically linked engines. This only
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| 402 | has an impact when not built "shared".
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| 403 |
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| 404 | no-stdio
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| 405 | Don't use any C "stdio" features. Only libcrypto and libssl
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| 406 | can be built in this way. Using this option will suppress
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| 407 | building the command line applications. Additionally since
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| 408 | the OpenSSL tests also use the command line applications the
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| 409 | tests will also be skipped.
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| 410 |
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| 411 | no-threads
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| 412 | Don't try to build with support for multi-threaded
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| 413 | applications.
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| 414 |
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| 415 | threads
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| 416 | Build with support for multi-threaded applications. Most
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| 417 | platforms will enable this by default. However if on a
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| 418 | platform where this is not the case then this will usually
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| 419 | require additional system-dependent options! See "Note on
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| 420 | multi-threading" below.
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| 421 |
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| 422 | no-ts
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| 423 | Don't build Time Stamping Authority support.
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| 424 |
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| 425 | enable-ubsan
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| 426 | Build with the Undefined Behaviour sanitiser. This is a
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| 427 | developer option only. It may not work on all platforms and
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| 428 | should never be used in production environments. It will only
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| 429 | work when used with gcc or clang and should be used in
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| 430 | conjunction with the "-DPEDANTIC" option (or the
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| 431 | --strict-warnings option).
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| 432 |
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| 433 | no-ui
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| 434 | Don't build with the "UI" capability (i.e. the set of
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| 435 | features enabling text based prompts).
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| 436 |
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| 437 | enable-unit-test
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| 438 | Enable additional unit test APIs. This should not typically
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| 439 | be used in production deployments.
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| 440 |
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| 441 | enable-weak-ssl-ciphers
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| 442 | Build support for SSL/TLS ciphers that are considered "weak"
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| 443 | (e.g. RC4 based ciphersuites).
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| 444 |
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| 445 | zlib
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| 446 | Build with support for zlib compression/decompression.
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| 447 |
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| 448 | zlib-dynamic
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| 449 | Like "zlib", but has OpenSSL load the zlib library
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| 450 | dynamically when needed. This is only supported on systems
|
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| 451 | where loading of shared libraries is supported.
|
---|
| 452 |
|
---|
| 453 | 386
|
---|
| 454 | In 32-bit x86 builds, when generating assembly modules,
|
---|
| 455 | use the 80386 instruction set only (the default x86 code
|
---|
| 456 | is more efficient, but requires at least a 486). Note:
|
---|
| 457 | This doesn't affect code generated by compiler, you're
|
---|
| 458 | likely to complement configuration command line with
|
---|
| 459 | suitable compiler-specific option.
|
---|
| 460 |
|
---|
| 461 | no-<prot>
|
---|
| 462 | Don't build support for negotiating the specified SSL/TLS
|
---|
| 463 | protocol (one of ssl, ssl3, tls, tls1, tls1_1, tls1_2, dtls,
|
---|
| 464 | dtls1 or dtls1_2). If "no-tls" is selected then all of tls1,
|
---|
| 465 | tls1_1 and tls1_2 are disabled. Similarly "no-dtls" will
|
---|
| 466 | disable dtls1 and dtls1_2. The "no-ssl" option is synonymous
|
---|
| 467 | with "no-ssl3". Note this only affects version negotiation.
|
---|
| 468 | OpenSSL will still provide the methods for applications to
|
---|
| 469 | explicitly select the individual protocol versions.
|
---|
| 470 |
|
---|
| 471 | no-<prot>-method
|
---|
| 472 | As for no-<prot> but in addition do not build the methods for
|
---|
| 473 | applications to explicitly select individual protocol
|
---|
| 474 | versions.
|
---|
| 475 |
|
---|
| 476 | enable-<alg>
|
---|
| 477 | Build with support for the specified algorithm, where <alg>
|
---|
| 478 | is one of: md2 or rc5.
|
---|
| 479 |
|
---|
| 480 | no-<alg>
|
---|
| 481 | Build without support for the specified algorithm, where
|
---|
| 482 | <alg> is one of: bf, blake2, camellia, cast, chacha, cmac,
|
---|
| 483 | des, dh, dsa, ecdh, ecdsa, idea, md4, mdc2, ocb, poly1305,
|
---|
| 484 | rc2, rc4, rmd160, scrypt, seed or whirlpool. The "ripemd"
|
---|
| 485 | algorithm is deprecated and if used is synonymous with rmd160.
|
---|
| 486 |
|
---|
| 487 | -Dxxx, -lxxx, -Lxxx, -fxxx, -mXXX, -Kxxx
|
---|
| 488 | These system specific options will be passed through to the
|
---|
| 489 | compiler to allow you to define preprocessor symbols, specify
|
---|
| 490 | additional libraries, library directories or other compiler
|
---|
| 491 | options. It might be worth noting that some compilers
|
---|
| 492 | generate code specifically for processor the compiler
|
---|
| 493 | currently executes on. This is not necessarily what you might
|
---|
| 494 | have in mind, since it might be unsuitable for execution on
|
---|
| 495 | other, typically older, processor. Consult your compiler
|
---|
| 496 | documentation.
|
---|
| 497 |
|
---|
| 498 |
|
---|
| 499 | Installation in Detail
|
---|
| 500 | ----------------------
|
---|
| 501 |
|
---|
| 502 | 1a. Configure OpenSSL for your operation system automatically:
|
---|
| 503 |
|
---|
| 504 | NOTE: This is not available on Windows.
|
---|
| 505 |
|
---|
| 506 | $ ./config [[ options ]] # Unix
|
---|
| 507 |
|
---|
| 508 | or
|
---|
| 509 |
|
---|
| 510 | $ @config [[ options ]] ! OpenVMS
|
---|
| 511 |
|
---|
| 512 | For the remainder of this text, the Unix form will be used in all
|
---|
| 513 | examples, please use the appropriate form for your platform.
|
---|
| 514 |
|
---|
| 515 | This guesses at your operating system (and compiler, if necessary) and
|
---|
| 516 | configures OpenSSL based on this guess. Run ./config -t to see
|
---|
| 517 | if it guessed correctly. If you want to use a different compiler, you
|
---|
| 518 | are cross-compiling for another platform, or the ./config guess was
|
---|
| 519 | wrong for other reasons, go to step 1b. Otherwise go to step 2.
|
---|
| 520 |
|
---|
| 521 | On some systems, you can include debugging information as follows:
|
---|
| 522 |
|
---|
| 523 | $ ./config -d [[ options ]]
|
---|
| 524 |
|
---|
| 525 | 1b. Configure OpenSSL for your operating system manually
|
---|
| 526 |
|
---|
| 527 | OpenSSL knows about a range of different operating system, hardware and
|
---|
| 528 | compiler combinations. To see the ones it knows about, run
|
---|
| 529 |
|
---|
| 530 | $ ./Configure # Unix
|
---|
| 531 |
|
---|
| 532 | or
|
---|
| 533 |
|
---|
| 534 | $ perl Configure # All other platforms
|
---|
| 535 |
|
---|
| 536 | For the remainder of this text, the Unix form will be used in all
|
---|
| 537 | examples, please use the appropriate form for your platform.
|
---|
| 538 |
|
---|
| 539 | Pick a suitable name from the list that matches your system. For most
|
---|
| 540 | operating systems there is a choice between using "cc" or "gcc". When
|
---|
| 541 | you have identified your system (and if necessary compiler) use this name
|
---|
| 542 | as the argument to Configure. For example, a "linux-elf" user would
|
---|
| 543 | run:
|
---|
| 544 |
|
---|
| 545 | $ ./Configure linux-elf [[ options ]]
|
---|
| 546 |
|
---|
| 547 | If your system isn't listed, you will have to create a configuration
|
---|
| 548 | file named Configurations/{{ something }}.conf and add the correct
|
---|
| 549 | configuration for your system. See the available configs as examples
|
---|
| 550 | and read Configurations/README and Configurations/README.design for
|
---|
| 551 | more information.
|
---|
| 552 |
|
---|
| 553 | The generic configurations "cc" or "gcc" should usually work on 32 bit
|
---|
| 554 | Unix-like systems.
|
---|
| 555 |
|
---|
| 556 | Configure creates a build file ("Makefile" on Unix, "makefile" on Windows
|
---|
| 557 | and "descrip.mms" on OpenVMS) from a suitable template in Configurations,
|
---|
| 558 | and defines various macros in include/openssl/opensslconf.h (generated from
|
---|
| 559 | include/openssl/opensslconf.h.in).
|
---|
| 560 |
|
---|
| 561 | 1c. Configure OpenSSL for building outside of the source tree.
|
---|
| 562 |
|
---|
| 563 | OpenSSL can be configured to build in a build directory separate from
|
---|
| 564 | the directory with the source code. It's done by placing yourself in
|
---|
| 565 | some other directory and invoking the configuration commands from
|
---|
| 566 | there.
|
---|
| 567 |
|
---|
| 568 | Unix example:
|
---|
| 569 |
|
---|
| 570 | $ mkdir /var/tmp/openssl-build
|
---|
| 571 | $ cd /var/tmp/openssl-build
|
---|
| 572 | $ /PATH/TO/OPENSSL/SOURCE/config [[ options ]]
|
---|
| 573 |
|
---|
| 574 | or
|
---|
| 575 |
|
---|
| 576 | $ /PATH/TO/OPENSSL/SOURCE/Configure {{ target }} [[ options ]]
|
---|
| 577 |
|
---|
| 578 | OpenVMS example:
|
---|
| 579 |
|
---|
| 580 | $ set default sys$login:
|
---|
| 581 | $ create/dir [.tmp.openssl-build]
|
---|
| 582 | $ set default [.tmp.openssl-build]
|
---|
| 583 | $ @[PATH.TO.OPENSSL.SOURCE]config [[ options ]]
|
---|
| 584 |
|
---|
| 585 | or
|
---|
| 586 |
|
---|
| 587 | $ @[PATH.TO.OPENSSL.SOURCE]Configure {{ target }} [[ options ]]
|
---|
| 588 |
|
---|
| 589 | Windows example:
|
---|
| 590 |
|
---|
| 591 | $ C:
|
---|
| 592 | $ mkdir \temp-openssl
|
---|
| 593 | $ cd \temp-openssl
|
---|
| 594 | $ perl d:\PATH\TO\OPENSSL\SOURCE\Configure {{ target }} [[ options ]]
|
---|
| 595 |
|
---|
| 596 | Paths can be relative just as well as absolute. Configure will
|
---|
| 597 | do its best to translate them to relative paths whenever possible.
|
---|
| 598 |
|
---|
| 599 | 2. Build OpenSSL by running:
|
---|
| 600 |
|
---|
| 601 | $ make # Unix
|
---|
| 602 | $ mms ! (or mmk) OpenVMS
|
---|
| 603 | $ nmake # Windows
|
---|
| 604 |
|
---|
| 605 | This will build the OpenSSL libraries (libcrypto.a and libssl.a on
|
---|
| 606 | Unix, corresponding on other platforms) and the OpenSSL binary
|
---|
| 607 | ("openssl"). The libraries will be built in the top-level directory,
|
---|
| 608 | and the binary will be in the "apps" subdirectory.
|
---|
| 609 |
|
---|
| 610 | If the build fails, look at the output. There may be reasons
|
---|
| 611 | for the failure that aren't problems in OpenSSL itself (like
|
---|
| 612 | missing standard headers). If you are having problems you can
|
---|
| 613 | get help by sending an email to the openssl-users email list (see
|
---|
| 614 | https://www.openssl.org/community/mailinglists.html for details). If
|
---|
| 615 | it is a bug with OpenSSL itself, please open an issue on GitHub, at
|
---|
| 616 | https://github.com/openssl/openssl/issues. Please review the existing
|
---|
| 617 | ones first; maybe the bug was already reported or has already been
|
---|
| 618 | fixed.
|
---|
| 619 |
|
---|
| 620 | (If you encounter assembler error messages, try the "no-asm"
|
---|
| 621 | configuration option as an immediate fix.)
|
---|
| 622 |
|
---|
| 623 | Compiling parts of OpenSSL with gcc and others with the system
|
---|
| 624 | compiler will result in unresolved symbols on some systems.
|
---|
| 625 |
|
---|
| 626 | 3. After a successful build, the libraries should be tested. Run:
|
---|
| 627 |
|
---|
| 628 | $ make test # Unix
|
---|
| 629 | $ mms test ! OpenVMS
|
---|
| 630 | $ nmake test # Windows
|
---|
| 631 |
|
---|
| 632 | NOTE: you MUST run the tests from an unprivileged account (or
|
---|
| 633 | disable your privileges temporarily if your platform allows it).
|
---|
| 634 |
|
---|
| 635 | If some tests fail, look at the output. There may be reasons for
|
---|
| 636 | the failure that isn't a problem in OpenSSL itself (like a
|
---|
| 637 | malfunction with Perl). You may want increased verbosity, that
|
---|
| 638 | can be accomplished like this:
|
---|
| 639 |
|
---|
| 640 | $ make VERBOSE=1 test # Unix
|
---|
| 641 |
|
---|
| 642 | $ mms /macro=(VERBOSE=1) test ! OpenVMS
|
---|
| 643 |
|
---|
| 644 | $ nmake VERBOSE=1 test # Windows
|
---|
| 645 |
|
---|
| 646 | If you want to run just one or a few specific tests, you can use
|
---|
| 647 | the make variable TESTS to specify them, like this:
|
---|
| 648 |
|
---|
| 649 | $ make TESTS='test_rsa test_dsa' test # Unix
|
---|
| 650 | $ mms/macro="TESTS=test_rsa test_dsa" test ! OpenVMS
|
---|
| 651 | $ nmake TESTS='test_rsa test_dsa' test # Windows
|
---|
| 652 |
|
---|
| 653 | And of course, you can combine (Unix example shown):
|
---|
| 654 |
|
---|
| 655 | $ make VERBOSE=1 TESTS='test_rsa test_dsa' test
|
---|
| 656 |
|
---|
| 657 | You can find the list of available tests like this:
|
---|
| 658 |
|
---|
| 659 | $ make list-tests # Unix
|
---|
| 660 | $ mms list-tests ! OpenVMS
|
---|
| 661 | $ nmake list-tests # Windows
|
---|
| 662 |
|
---|
| 663 | Have a look at the manual for the perl module Test::Harness to
|
---|
| 664 | see what other HARNESS_* variables there are.
|
---|
| 665 |
|
---|
| 666 | If you find a problem with OpenSSL itself, try removing any
|
---|
| 667 | compiler optimization flags from the CFLAGS line in Makefile and
|
---|
| 668 | run "make clean; make" or corresponding.
|
---|
| 669 |
|
---|
| 670 | Please send bug reports to <rt@openssl.org>.
|
---|
| 671 |
|
---|
| 672 | 4. If everything tests ok, install OpenSSL with
|
---|
| 673 |
|
---|
| 674 | $ make install # Unix
|
---|
| 675 | $ mms install ! OpenVMS
|
---|
| 676 | $ nmake install # Windows
|
---|
| 677 |
|
---|
| 678 | This will install all the software components in this directory
|
---|
| 679 | tree under PREFIX (the directory given with --prefix or its
|
---|
| 680 | default):
|
---|
| 681 |
|
---|
| 682 | Unix:
|
---|
| 683 |
|
---|
| 684 | bin/ Contains the openssl binary and a few other
|
---|
| 685 | utility scripts.
|
---|
| 686 | include/openssl
|
---|
| 687 | Contains the header files needed if you want
|
---|
| 688 | to build your own programs that use libcrypto
|
---|
| 689 | or libssl.
|
---|
| 690 | lib Contains the OpenSSL library files.
|
---|
| 691 | lib/engines Contains the OpenSSL dynamically loadable engines.
|
---|
| 692 |
|
---|
| 693 | share/man/man1 Contains the OpenSSL command line man-pages.
|
---|
| 694 | share/man/man3 Contains the OpenSSL library calls man-pages.
|
---|
| 695 | share/man/man5 Contains the OpenSSL configuration format man-pages.
|
---|
| 696 | share/man/man7 Contains the OpenSSL other misc man-pages.
|
---|
| 697 |
|
---|
| 698 | share/doc/openssl/html/man1
|
---|
| 699 | share/doc/openssl/html/man3
|
---|
| 700 | share/doc/openssl/html/man5
|
---|
| 701 | share/doc/openssl/html/man7
|
---|
| 702 | Contains the HTML rendition of the man-pages.
|
---|
| 703 |
|
---|
| 704 | OpenVMS ('arch' is replaced with the architecture name, "Alpha"
|
---|
| 705 | or "ia64", 'sover' is replaced with the shared library version
|
---|
| 706 | (0101 for 1.1), and 'pz' is replaced with the pointer size
|
---|
| 707 | OpenSSL was built with):
|
---|
| 708 |
|
---|
| 709 | [.EXE.'arch'] Contains the openssl binary.
|
---|
| 710 | [.EXE] Contains a few utility scripts.
|
---|
| 711 | [.include.openssl]
|
---|
| 712 | Contains the header files needed if you want
|
---|
| 713 | to build your own programs that use libcrypto
|
---|
| 714 | or libssl.
|
---|
| 715 | [.LIB.'arch'] Contains the OpenSSL library files.
|
---|
| 716 | [.ENGINES'sover''pz'.'arch']
|
---|
| 717 | Contains the OpenSSL dynamically loadable engines.
|
---|
| 718 | [.SYS$STARTUP] Contains startup, login and shutdown scripts.
|
---|
| 719 | These define appropriate logical names and
|
---|
| 720 | command symbols.
|
---|
| 721 | [.SYSTEST] Contains the installation verification procedure.
|
---|
| 722 | [.HTML] Contains the HTML rendition of the manual pages.
|
---|
| 723 |
|
---|
| 724 |
|
---|
| 725 | Additionally, install will add the following directories under
|
---|
| 726 | OPENSSLDIR (the directory given with --openssldir or its default)
|
---|
| 727 | for you convenience:
|
---|
| 728 |
|
---|
| 729 | certs Initially empty, this is the default location
|
---|
| 730 | for certificate files.
|
---|
| 731 | private Initially empty, this is the default location
|
---|
| 732 | for private key files.
|
---|
| 733 | misc Various scripts.
|
---|
| 734 |
|
---|
| 735 | Package builders who want to configure the library for standard
|
---|
| 736 | locations, but have the package installed somewhere else so that
|
---|
| 737 | it can easily be packaged, can use
|
---|
| 738 |
|
---|
| 739 | $ make DESTDIR=/tmp/package-root install # Unix
|
---|
| 740 | $ mms/macro="DESTDIR=TMP:[PACKAGE-ROOT]" install ! OpenVMS
|
---|
| 741 |
|
---|
| 742 | The specified destination directory will be prepended to all
|
---|
| 743 | installation target paths.
|
---|
| 744 |
|
---|
| 745 | Compatibility issues with previous OpenSSL versions:
|
---|
| 746 |
|
---|
| 747 | * COMPILING existing applications
|
---|
| 748 |
|
---|
| 749 | OpenSSL 1.1.0 hides a number of structures that were previously
|
---|
| 750 | open. This includes all internal libssl structures and a number
|
---|
| 751 | of EVP types. Accessor functions have been added to allow
|
---|
| 752 | controlled access to the structures' data.
|
---|
| 753 |
|
---|
| 754 | This means that some software needs to be rewritten to adapt to
|
---|
| 755 | the new ways of doing things. This often amounts to allocating
|
---|
| 756 | an instance of a structure explicitly where you could previously
|
---|
| 757 | allocate them on the stack as automatic variables, and using the
|
---|
| 758 | provided accessor functions where you would previously access a
|
---|
| 759 | structure's field directly.
|
---|
| 760 |
|
---|
| 761 | Some APIs have changed as well. However, older APIs have been
|
---|
| 762 | preserved when possible.
|
---|
| 763 |
|
---|
| 764 | Environment Variables
|
---|
| 765 | ---------------------
|
---|
| 766 |
|
---|
| 767 | A number of environment variables can be used to provide additional control
|
---|
| 768 | over the build process. Typically these should be defined prior to running
|
---|
| 769 | config or Configure. Not all environment variables are relevant to all
|
---|
| 770 | platforms.
|
---|
| 771 |
|
---|
| 772 | AR
|
---|
| 773 | The name of the ar executable to use.
|
---|
| 774 |
|
---|
| 775 | BUILDFILE
|
---|
| 776 | Use a different build file name than the platform default
|
---|
| 777 | ("Makefile" on Unixly platforms, "makefile" on native Windows,
|
---|
| 778 | "descrip.mms" on OpenVMS). This requires that there is a
|
---|
| 779 | corresponding build file template. See Configurations/README
|
---|
| 780 | for further information.
|
---|
| 781 |
|
---|
| 782 | CC
|
---|
| 783 | The compiler to use. Configure will attempt to pick a default
|
---|
| 784 | compiler for your platform but this choice can be overridden
|
---|
| 785 | using this variable. Set it to the compiler executable you wish
|
---|
| 786 | to use, e.g. "gcc" or "clang".
|
---|
| 787 |
|
---|
| 788 | CROSS_COMPILE
|
---|
| 789 | This environment variable has the same meaning as for the
|
---|
| 790 | "--cross-compile-prefix" Configure flag described above. If both
|
---|
| 791 | are set then the Configure flag takes precedence.
|
---|
| 792 |
|
---|
| 793 | NM
|
---|
| 794 | The name of the nm executable to use.
|
---|
| 795 |
|
---|
| 796 | OPENSSL_LOCAL_CONFIG_DIR
|
---|
| 797 | OpenSSL comes with a database of information about how it
|
---|
| 798 | should be built on different platforms as well as build file
|
---|
| 799 | templates for those platforms. The database is comprised of
|
---|
| 800 | ".conf" files in the Configurations directory. The build
|
---|
| 801 | file templates reside there as well as ".tmpl" files. See the
|
---|
| 802 | file Configurations/README for further information about the
|
---|
| 803 | format of ".conf" files as well as information on the ".tmpl"
|
---|
| 804 | files.
|
---|
| 805 | In addition to the standard ".conf" and ".tmpl" files, it is
|
---|
| 806 | possible to create your own ".conf" and ".tmpl" files and store
|
---|
| 807 | them locally, outside the OpenSSL source tree. This environment
|
---|
| 808 | variable can be set to the directory where these files are held
|
---|
| 809 | and will have Configure to consider them in addition to the
|
---|
| 810 | standard ones.
|
---|
| 811 |
|
---|
| 812 | PERL
|
---|
| 813 | The name of the Perl executable to use when building OpenSSL.
|
---|
| 814 |
|
---|
| 815 | HASHBANGPERL
|
---|
| 816 | The command string for the Perl executable to insert in the
|
---|
| 817 | #! line of perl scripts that will be publically installed.
|
---|
| 818 | Default: /usr/bin/env perl
|
---|
| 819 | Note: the value of this variable is added to the same scripts
|
---|
| 820 | on all platforms, but it's only relevant on Unix-like platforms.
|
---|
| 821 |
|
---|
| 822 | RC
|
---|
| 823 | The name of the rc executable to use. The default will be as
|
---|
| 824 | defined for the target platform in the ".conf" file. If not
|
---|
| 825 | defined then "windres" will be used. The WINDRES environment
|
---|
| 826 | variable is synonymous to this. If both are defined then RC
|
---|
| 827 | takes precedence.
|
---|
| 828 |
|
---|
| 829 | RANLIB
|
---|
| 830 | The name of the ranlib executable to use.
|
---|
| 831 |
|
---|
| 832 | WINDRES
|
---|
| 833 | See RC.
|
---|
| 834 |
|
---|
| 835 | Makefile targets
|
---|
| 836 | ----------------
|
---|
| 837 |
|
---|
| 838 | The Configure script generates a Makefile in a format relevant to the specific
|
---|
| 839 | platform. The Makefiles provide a number of targets that can be used. Not all
|
---|
| 840 | targets may be available on all platforms. Only the most common targets are
|
---|
| 841 | described here. Examine the Makefiles themselves for the full list.
|
---|
| 842 |
|
---|
| 843 | all
|
---|
| 844 | The default target to build all the software components.
|
---|
| 845 |
|
---|
| 846 | clean
|
---|
| 847 | Remove all build artefacts and return the directory to a "clean"
|
---|
| 848 | state.
|
---|
| 849 |
|
---|
| 850 | depend
|
---|
| 851 | Rebuild the dependencies in the Makefiles. This is a legacy
|
---|
| 852 | option that no longer needs to be used in OpenSSL 1.1.0.
|
---|
| 853 |
|
---|
| 854 | install
|
---|
| 855 | Install all OpenSSL components.
|
---|
| 856 |
|
---|
| 857 | install_sw
|
---|
| 858 | Only install the OpenSSL software components.
|
---|
| 859 |
|
---|
| 860 | install_docs
|
---|
| 861 | Only install the OpenSSL documentation components.
|
---|
| 862 |
|
---|
| 863 | install_man_docs
|
---|
| 864 | Only install the OpenSSL man pages (Unix only).
|
---|
| 865 |
|
---|
| 866 | install_html_docs
|
---|
| 867 | Only install the OpenSSL html documentation.
|
---|
| 868 |
|
---|
| 869 | list-tests
|
---|
| 870 | Prints a list of all the self test names.
|
---|
| 871 |
|
---|
| 872 | test
|
---|
| 873 | Build and run the OpenSSL self tests.
|
---|
| 874 |
|
---|
| 875 | uninstall
|
---|
| 876 | Uninstall all OpenSSL components.
|
---|
| 877 |
|
---|
| 878 | update
|
---|
| 879 | This is a developer option. If you are developing a patch for
|
---|
| 880 | OpenSSL you may need to use this if you want to update
|
---|
| 881 | automatically generated files; add new error codes or add new
|
---|
| 882 | (or change the visibility of) public API functions. (Unix only).
|
---|
| 883 |
|
---|
| 884 | Note on multi-threading
|
---|
| 885 | -----------------------
|
---|
| 886 |
|
---|
| 887 | For some systems, the OpenSSL Configure script knows what compiler options
|
---|
| 888 | are needed to generate a library that is suitable for multi-threaded
|
---|
| 889 | applications. On these systems, support for multi-threading is enabled
|
---|
| 890 | by default; use the "no-threads" option to disable (this should never be
|
---|
| 891 | necessary).
|
---|
| 892 |
|
---|
| 893 | On other systems, to enable support for multi-threading, you will have
|
---|
| 894 | to specify at least two options: "threads", and a system-dependent option.
|
---|
| 895 | (The latter is "-D_REENTRANT" on various systems.) The default in this
|
---|
| 896 | case, obviously, is not to include support for multi-threading (but
|
---|
| 897 | you can still use "no-threads" to suppress an annoying warning message
|
---|
| 898 | from the Configure script.)
|
---|
| 899 |
|
---|
| 900 | OpenSSL provides built-in support for two threading models: pthreads (found on
|
---|
| 901 | most UNIX/Linux systems), and Windows threads. No other threading models are
|
---|
| 902 | supported. If your platform does not provide pthreads or Windows threads then
|
---|
| 903 | you should Configure with the "no-threads" option.
|
---|
| 904 |
|
---|
| 905 | Notes on shared libraries
|
---|
| 906 | -------------------------
|
---|
| 907 |
|
---|
| 908 | For most systems the OpenSSL Configure script knows what is needed to
|
---|
| 909 | build shared libraries for libcrypto and libssl. On these systems
|
---|
| 910 | the shared libraries will be created by default. This can be suppressed and
|
---|
| 911 | only static libraries created by using the "no-shared" option. On systems
|
---|
| 912 | where OpenSSL does not know how to build shared libraries the "no-shared"
|
---|
| 913 | option will be forced and only static libraries will be created.
|
---|
| 914 |
|
---|
| 915 | Shared libraries are named a little differently on different platforms.
|
---|
| 916 | One way or another, they all have the major OpenSSL version number as
|
---|
| 917 | part of the file name, i.e. for OpenSSL 1.1.x, 1.1 is somehow part of
|
---|
| 918 | the name.
|
---|
| 919 |
|
---|
| 920 | On most POSIXly platforms, shared libraries are named libcrypto.so.1.1
|
---|
| 921 | and libssl.so.1.1.
|
---|
| 922 |
|
---|
| 923 | on Cygwin, shared libraries are named cygcrypto-1.1.dll and cygssl-1.1.dll
|
---|
| 924 | with import libraries libcrypto.dll.a and libssl.dll.a.
|
---|
| 925 |
|
---|
| 926 | On Windows build with MSVC or using MingW, shared libraries are named
|
---|
| 927 | libcrypto-1_1.dll and libssl-1_1.dll for 32-bit Windows, libcrypto-1_1-x64.dll
|
---|
| 928 | and libssl-1_1-x64.dll for 64-bit x86_64 Windows, and libcrypto-1_1-ia64.dll
|
---|
| 929 | and libssl-1_1-ia64.dll for IA64 Windows. With MSVC, the import libraries
|
---|
| 930 | are named libcrypto.lib and libssl.lib, while with MingW, they are named
|
---|
| 931 | libcrypto.dll.a and libssl.dll.a.
|
---|
| 932 |
|
---|
| 933 | On VMS, shareable images (VMS speak for shared libraries) are named
|
---|
| 934 | ossl$libcrypto0101_shr.exe and ossl$libssl0101_shr.exe. However, when
|
---|
| 935 | OpenSSL is specifically built for 32-bit pointers, the shareable images
|
---|
| 936 | are named ossl$libcrypto0101_shr32.exe and ossl$libssl0101_shr32.exe
|
---|
| 937 | instead, and when built for 64-bit pointers, they are named
|
---|
| 938 | ossl$libcrypto0101_shr64.exe and ossl$libssl0101_shr64.exe.
|
---|
| 939 |
|
---|
| 940 | Note on random number generation
|
---|
| 941 | --------------------------------
|
---|
| 942 |
|
---|
| 943 | Availability of cryptographically secure random numbers is required for
|
---|
| 944 | secret key generation. OpenSSL provides several options to seed the
|
---|
| 945 | internal PRNG. If not properly seeded, the internal PRNG will refuse
|
---|
| 946 | to deliver random bytes and a "PRNG not seeded error" will occur.
|
---|
| 947 | On systems without /dev/urandom (or similar) device, it may be necessary
|
---|
| 948 | to install additional support software to obtain a random seed.
|
---|
| 949 | Please check out the manual pages for RAND_add(), RAND_bytes(), RAND_egd(),
|
---|
| 950 | and the FAQ for more information.
|
---|
| 951 |
|
---|