提交 d5957691 编写于 作者: M Matt Caswell

More tweaks to the installation instructions

A few things were out of date and a few things were missing. Also some
formatting updates.
Reviewed-by: NRichard Levitte <levitte@openssl.org>
上级 a5aa63a4
INSTALLATION ON THE UNIX PLATFORM OPENSSL INSTALLATION
--------------------------------- --------------------
[Installation on DOS (with djgpp), Windows, MacOS (before MacOS X) [Installation on DOS (with djgpp), MacOS (before MacOS X)
and NetWare is described in INSTALL.DJGPP, INSTALL.MacOS and NetWare is described in INSTALL.DJGPP, INSTALL.MacOS
and INSTALL.NW. and INSTALL.NW.
This document describes installation on the main supported operating This document describes installation on the main supported operating
systems, currently the Unix family and OpenVMS.] systems, currently the Linux/Unix family, OpenVMS and Windows.]
To install OpenSSL, you will need: To install OpenSSL, you will need:
...@@ -15,7 +15,7 @@ ...@@ -15,7 +15,7 @@
* Perl 5 with core modules (please read README.PERL) * Perl 5 with core modules (please read README.PERL)
* The perl module Text::Template (please read README.PERL) * The perl module Text::Template (please read README.PERL)
* an ANSI C compiler * an ANSI C compiler
* a development environment in form of development libraries and C * a development environment in the form of development libraries and C
header files header files
* a supported operating system * a supported operating system
...@@ -76,83 +76,91 @@ ...@@ -76,83 +76,91 @@
There are several options to ./config (or ./Configure) to customize There are several options to ./config (or ./Configure) to customize
the build: the build:
--prefix=DIR The top of the installation directory tree. Defaults are: --prefix=DIR The top of the installation directory tree. Defaults are:
Unix: /usr/local Unix: /usr/local
OpenVMS: SYS$COMMON:[OPENSSL-'version'] OpenVMS: SYS$COMMON:[OPENSSL-'version']
--openssldir=DIR Directory for OpenSSL configuration files, and also the --openssldir=DIR Directory for OpenSSL configuration files, and also the
default certificate and key store. Defaults are: default certificate and key store. Defaults are:
Unix: PREFIX/ssl (PREFIX is given by --prefix) Unix: PREFIX/ssl (PREFIX is given by --prefix)
OpenVMS: SYS$COMMON:[SSL] OpenVMS: SYS$COMMON:[SSL]
no-autoalginit Don't automatically load all supported ciphers and digests. --api=x.y.z Don't build with support for deprecated APIs below the
Typically OpenSSL will make available all of its supported specified version number. For example "--api=1.1.0" will
ciphers and digests. For a statically linked application this remove support for all APIS that were deprecated in OpenSSL
may be undesirable if small executable size is an objective. version 1.1.0 or below.
This only affects libcrypto. Ciphers and digests will have to be
loaded manually using EVP_add_cipher() and EVP_add_digest() if no-deprecated Don't build with support for any deprecated APIs. This is the
this option is used. same as using "--api" and supplying the latest version
number.
no-autoerrinit Don't automatically load all libcrypto/libssl error strings.
Typically OpenSSL will automatically load human readable error no-autoalginit Don't automatically load all supported ciphers and digests.
strings. For a statically linked application this may be Typically OpenSSL will make available all of its supported
undesirable if small executable size is an objective. ciphers and digests. For a statically linked application this
may be undesirable if small executable size is an objective.
no-threads Don't try to build with support for multi-threaded This only affects libcrypto. Ciphers and digests will have to
applications. be loaded manually using EVP_add_cipher() and
EVP_add_digest() if this option is used.
threads Build with support for multi-threaded applications.
This will usually require additional system-dependent options! no-autoerrinit Don't automatically load all libcrypto/libssl error strings.
See "Note on multi-threading" below. Typically OpenSSL will automatically load human readable
error strings. For a statically linked application this may
no-zlib Don't try to build with support for zlib compression and be undesirable if small executable size is an objective.
decompression.
no-threads Don't try to build with support for multi-threaded
zlib Build with support for zlib compression/decompression. applications.
zlib-dynamic Like "zlib", but has OpenSSL load the zlib library dynamically threads Build with support for multi-threaded applications.
when needed. This is only supported on systems where loading This will usually require additional system-dependent
of shared libraries is supported. This is the default choice. options! See "Note on multi-threading" below.
no-shared Don't try to create shared libraries. no-zlib Don't try to build with support for zlib compression and
decompression.
shared In addition to the usual static libraries, create shared
libraries on platforms where it's supported. See "Note on zlib Build with support for zlib compression/decompression.
shared libraries" below.
zlib-dynamic Like "zlib", but has OpenSSL load the zlib library
no-asm Do not use assembler code. dynamically when needed. This is only supported on systems
where loading of shared libraries is supported. This is the
386 On Intel hardware, use the 80386 instruction set only default choice.
(the default x86 code is more efficient, but requires at
least a 486). Note: Use compiler flags for any other CPU no-shared Don't try to create shared libraries.
specific configuration, e.g. "-m32" to build x86 code on
an x64 system. shared In addition to the usual static libraries, create shared
libraries on platforms where it's supported. See "Note on
no-sse2 Exclude SSE2 code pathes. Normally SSE2 extension is shared libraries" below.
detected at run-time, but the decision whether or not the
machine code will be executed is taken solely on CPU no-asm Do not use assembler code.
capability vector. This means that if you happen to run OS
kernel which does not support SSE2 extension on Intel P4 386 On Intel hardware, use the 80386 instruction set only
processor, then your application might be exposed to (the default x86 code is more efficient, but requires at
"illegal instruction" exception. There might be a way least a 486). Note: Use compiler flags for any other CPU
to enable support in kernel, e.g. FreeBSD kernel can be specific configuration, e.g. "-m32" to build x86 code on
compiled with CPU_ENABLE_SSE, and there is a way to an x64 system.
disengage SSE2 code pathes upon application start-up,
but if you aim for wider "audience" running such kernel, no-sse2 Exclude SSE2 code pathes. Normally SSE2 extension is
consider no-sse2. Both 386 and no-asm options above imply detected at run-time, but the decision whether or not the
no-sse2. machine code will be executed is taken solely on CPU
capability vector. This means that if you happen to run OS
no-<cipher> Build without the specified cipher (bf, cast, des, dh, dsa, kernel which does not support SSE2 extension on Intel P4
hmac, md2, md5, mdc2, rc2, rc4, rc5, rsa, sha). processor, then your application might be exposed to
The crypto/<cipher> directory can be removed after running "illegal instruction" exception. There might be a way
"make depend". to enable support in kernel, e.g. FreeBSD kernel can be
compiled with CPU_ENABLE_SSE, and there is a way to
-Dxxx, -lxxx, -Lxxx, -fxxx, -mXXX, -Kxxx These system specific options will disengage SSE2 code pathes upon application start-up,
be passed through to the compiler to allow you to but if you aim for wider "audience" running such kernel,
define preprocessor symbols, specify additional libraries, consider no-sse2. Both 386 and no-asm options above imply
library directories or other compiler options. no-sse2.
no-<alg> Build without the specified algorithm (bf, cast, des, dh,
dsa, hmac, md2, md5, mdc2, rc2, rc4, rc5, rsa, sha).
-Dxxx, -lxxx, These system specific options will be passed through to the
-Lxxx, -fxxx, compiler to allow you to define preprocessor symbols, specify
-mXXX, -Kxxx additional libraries, library directories or other compiler
options.
Installation in Detail Installation in Detail
...@@ -272,9 +280,9 @@ ...@@ -272,9 +280,9 @@
report the problem to <rt@openssl.org> (note that your message report the problem to <rt@openssl.org> (note that your message
will be recorded in the request tracker publicly readable at will be recorded in the request tracker publicly readable at
https://www.openssl.org/community/index.html#bugs and will be https://www.openssl.org/community/index.html#bugs and will be
forwarded to a public mailing list). Include the output of "make forwarded to a public mailing list). Please check out the request
report" in your message. Please check out the request tracker. Maybe tracker. Maybe the bug was already reported or has already been
the bug was already reported or has already been fixed. fixed.
[If you encounter assembler error messages, try the "no-asm" [If you encounter assembler error messages, try the "no-asm"
configuration option as an immediate fix.] configuration option as an immediate fix.]
...@@ -325,11 +333,7 @@ ...@@ -325,11 +333,7 @@
compiler optimization flags from the CFLAGS line in Makefile and compiler optimization flags from the CFLAGS line in Makefile and
run "make clean; make" or corresponding. run "make clean; make" or corresponding.
Please send a bug report to <openssl-bugs@openssl.org>, and when Please send a bug reports to <rt@openssl.org>.
you do, please run the following and include the output in your
report:
$ make report
4. If everything tests ok, install OpenSSL with 4. If everything tests ok, install OpenSSL with
...@@ -352,7 +356,7 @@ ...@@ -352,7 +356,7 @@
lib/engines Contains the OpenSSL dynamically loadable engines. lib/engines Contains the OpenSSL dynamically loadable engines.
share/man/{man1,man3,man5,man7} share/man/{man1,man3,man5,man7}
Contains the OpenSSL man-pages. Contains the OpenSSL man-pages.
share/doc/openssl/html{man1,man3,man5,man7} share/doc/openssl/html/{man1,man3,man5,man7}
Contains the HTML rendition of the man-pages. Contains the HTML rendition of the man-pages.
OpenVMS ('arch' is replaced with the architecture name, "Alpha" OpenVMS ('arch' is replaced with the architecture name, "Alpha"
...@@ -443,13 +447,10 @@ ...@@ -443,13 +447,10 @@
use them would be to conserve memory on systems where several programs use them would be to conserve memory on systems where several programs
are using OpenSSL. are using OpenSSL.
For some systems, the OpenSSL Configure script knows what is needed to For most systems, the OpenSSL Configure script knows what is needed to
build shared libraries for libcrypto and libssl. On these systems, build shared libraries for libcrypto and libssl. On these systems,
the shared libraries are currently not created by default, but giving the shared libraries are currently not created by default, but giving
the option "shared" will get them created. This method supports Makefile the option "shared" will get them created.
targets for shared library creation, like linux-shared. Those targets
can currently be used on their own just as well, but this is expected
to change in future versions of OpenSSL.
Note on random number generation Note on random number generation
-------------------------------- --------------------------------
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