--------------------
This document describes installation on all supported operating
- systems (the Linux/Unix family, OpenVMS and Windows)
+ systems (the Unix/Linux family (which includes Mac OS/X), OpenVMS,
+ and Windows).
To install OpenSSL, you will need:
For additional platform specific requirements, solutions to specific
issues and other details, please read one of these:
+ * NOTES.UNIX (any supported Unix like system)
* NOTES.VMS (OpenVMS)
* NOTES.WIN (any supported Windows)
* NOTES.DJGPP (DOS platform with DJGPP)
If you want to just get on with it, do:
- on Unix:
+ on Unix (again, this includes Mac OS/X):
$ ./config
$ make
$ @config --prefix=PROGRAM:[INSTALLS] --openssldir=SYS$MANAGER:[OPENSSL]
+ (Note: if you do add options to the configuration command, please make sure
+ you've read more than just this Quick Start, such as relevant NOTES.* files,
+ the options outline below, as configuration options may change the outcome
+ in otherwise unexpected ways)
+
Configuration Options
---------------------
Don't build SRTP support
no-sse2
- Exclude SSE2 code paths. Normally SSE2 extension is
- detected at run-time, but the decision whether or not the
- machine code will be executed is taken solely on CPU
- capability vector. This means that if you happen to run OS
- kernel which does not support SSE2 extension on Intel P4
- processor, then your application might be exposed to
- "illegal instruction" exception. There might be a way
- to enable support in kernel, e.g. FreeBSD kernel can be
- compiled with CPU_ENABLE_SSE, and there is a way to
- disengage SSE2 code paths upon application start-up,
- but if you aim for wider "audience" running such kernel,
- consider no-sse2. Both the 386 and no-asm options imply
- no-sse2.
+ Exclude SSE2 code paths from 32-bit x86 assembly modules.
+ Normally SSE2 extension is detected at run-time, but the
+ decision whether or not the machine code will be executed
+ is taken solely on CPU capability vector. This means that
+ if you happen to run OS kernel which does not support SSE2
+ extension on Intel P4 processor, then your application
+ might be exposed to "illegal instruction" exception.
+ There might be a way to enable support in kernel, e.g.
+ FreeBSD kernel can be compiled with CPU_ENABLE_SSE, and
+ there is a way to disengage SSE2 code paths upon application
+ start-up, but if you aim for wider "audience" running
+ such kernel, consider no-sse2. Both the 386 and
+ no-asm options imply no-sse2.
enable-ssl-trace
Build with the SSL Trace capabilities (adds the "-trace"
has an impact when not built "shared".
no-stdio
- Don't use any C "stdio" features. Only libcrypto and libssl
- can be built in this way. Using this option will suppress
+ Don't use anything from the C header file "stdio.h" that
+ makes use of the "FILE" type. Only libcrypto and libssl can
+ be built in this way. Using this option will suppress
building the command line applications. Additionally since
the OpenSSL tests also use the command line applications the
tests will also be skipped.
where loading of shared libraries is supported.
386
- On Intel hardware, use the 80386 instruction set only
- (the default x86 code is more efficient, but requires at
- least a 486). Note: Use compiler flags for any other CPU
- specific configuration, e.g. "-m32" to build x86 code on
- an x64 system.
+ In 32-bit x86 builds, when generating assembly modules,
+ use the 80386 instruction set only (the default x86 code
+ is more efficient, but requires at least a 486). Note:
+ This doesn't affect code generated by compiler, you're
+ likely to complement configuration command line with
+ suitable compiler-specific option.
no-<prot>
Don't build support for negotiating the specified SSL/TLS
no-<alg>
Build without support for the specified algorithm, where
<alg> is one of: bf, blake2, camellia, cast, chacha, cmac,
- des, dh, dsa, ecdh, ecdsa, idea, md4, md5, mdc2, ocb,
- ploy1305, rc2, rc4, rmd160, scrypt, seed or whirlpool. The
- "ripemd" algorithm is deprecated and if used is synonymous
- with rmd160.
-
- -Dxxx, -lxxx, -Lxxx, -fxxx, -mXXX, -Kxxx
- These system specific options will be passed through to the
- compiler to allow you to define preprocessor symbols, specify
- additional libraries, library directories or other compiler
- options.
+ des, dh, dsa, ecdh, ecdsa, idea, md4, mdc2, ocb, poly1305,
+ rc2, rc4, rmd160, scrypt, seed or whirlpool. The "ripemd"
+ algorithm is deprecated and if used is synonymous with rmd160.
+
+ -Dxxx, lxxx, -Lxxx, -Wl, -rpath, -R, -framework, -static
+ These system specific options will be recocognised and
+ passed through to the compiler to allow you to define
+ preprocessor symbols, specify additional libraries, library
+ directories or other compiler options. It might be worth
+ noting that some compilers generate code specifically for
+ processor the compiler currently executes on. This is not
+ necessarily what you might have in mind, since it might be
+ unsuitable for execution on other, typically older,
+ processor. Consult your compiler documentation.
+
+ -xxx, +xxx
+ Additional options that are not otherwise recognised are
+ passed through as they are to the compiler as well. Again,
+ consult your compiler documentation.
Installation in Detail
("openssl"). The libraries will be built in the top-level directory,
and the binary will be in the "apps" subdirectory.
- If the build fails, look at the output. There may be reasons for
- the failure that aren't problems in OpenSSL itself (like missing
- standard headers). If you are having problems you can get help by
- sending an email to the openssl-users email list (see
- https://www.openssl.org/community/mailinglists.html for details). If it
- is a bug with OpenSSL itself, please report the problem to
- <rt@openssl.org> (note that your message will be recorded in the request
- tracker publicly readable at
- https://www.openssl.org/community/index.html#bugs and will be
- forwarded to a public mailing list). Please check out the request
- tracker. Maybe the bug was already reported or has already been
+ If the build fails, look at the output. There may be reasons
+ for the failure that aren't problems in OpenSSL itself (like
+ missing standard headers). If you are having problems you can
+ get help by sending an email to the openssl-users email list (see
+ https://www.openssl.org/community/mailinglists.html for details). If
+ it is a bug with OpenSSL itself, please open an issue on GitHub, at
+ https://github.com/openssl/openssl/issues. Please review the existing
+ ones first; maybe the bug was already reported or has already been
fixed.
(If you encounter assembler error messages, try the "no-asm"
compiler optimization flags from the CFLAGS line in Makefile and
run "make clean; make" or corresponding.
- Please send bug reports to <rt@openssl.org>.
+ To report a bug please open an issue on GitHub, at
+ https://github.com/openssl/openssl/issues.
4. If everything tests ok, install OpenSSL with
AR
The name of the ar executable to use.
+ BUILDFILE
+ Use a different build file name than the platform default
+ ("Makefile" on Unixly platforms, "makefile" on native Windows,
+ "descrip.mms" on OpenVMS). This requires that there is a
+ corresponding build file template. See Configurations/README
+ for further information.
+
CC
The compiler to use. Configure will attempt to pick a default
compiler for your platform but this choice can be overridden
OPENSSL_LOCAL_CONFIG_DIR
OpenSSL comes with a database of information about how it
- should be built on different platforms. This information is
- held in ".conf" files in the Configurations directory. See the
+ should be built on different platforms as well as build file
+ templates for those platforms. The database is comprised of
+ ".conf" files in the Configurations directory. The build
+ file templates reside there as well as ".tmpl" files. See the
file Configurations/README for further information about the
- format of ".conf" files. As well as the standard ".conf" files
- it is possible to create your own ".conf" files and store them
- locally, outside the OpenSSL source tree. This environment
- variable can be set to the directory where these files are held.
+ format of ".conf" files as well as information on the ".tmpl"
+ files.
+ In addition to the standard ".conf" and ".tmpl" files, it is
+ possible to create your own ".conf" and ".tmpl" files and store
+ them locally, outside the OpenSSL source tree. This environment
+ variable can be set to the directory where these files are held
+ and will have Configure to consider them in addition to the
+ standard ones.
PERL
The name of the Perl executable to use when building OpenSSL.
supported. If your platform does not provide pthreads or Windows threads then
you should Configure with the "no-threads" option.
- Note on shared libraries
- ------------------------
+ Notes on shared libraries
+ -------------------------
For most systems the OpenSSL Configure script knows what is needed to
build shared libraries for libcrypto and libssl. On these systems
where OpenSSL does not know how to build shared libraries the "no-shared"
option will be forced and only static libraries will be created.
+ Shared libraries are named a little differently on different platforms.
+ One way or another, they all have the major OpenSSL version number as
+ part of the file name, i.e. for OpenSSL 1.1.x, 1.1 is somehow part of
+ the name.
+
+ On most POSIXly platforms, shared libraries are named libcrypto.so.1.1
+ and libssl.so.1.1.
+
+ on Cygwin, shared libraries are named cygcrypto-1.1.dll and cygssl-1.1.dll
+ with import libraries libcrypto.dll.a and libssl.dll.a.
+
+ On Windows build with MSVC or using MingW, shared libraries are named
+ libcrypto-1_1.dll and libssl-1_1.dll for 32-bit Windows, libcrypto-1_1-x64.dll
+ and libssl-1_1-x64.dll for 64-bit x86_64 Windows, and libcrypto-1_1-ia64.dll
+ and libssl-1_1-ia64.dll for IA64 Windows. With MSVC, the import libraries
+ are named libcrypto.lib and libssl.lib, while with MingW, they are named
+ libcrypto.dll.a and libssl.dll.a.
+
+ On VMS, shareable images (VMS speak for shared libraries) are named
+ ossl$libcrypto0101_shr.exe and ossl$libssl0101_shr.exe. However, when
+ OpenSSL is specifically built for 32-bit pointers, the shareable images
+ are named ossl$libcrypto0101_shr32.exe and ossl$libssl0101_shr32.exe
+ instead, and when built for 64-bit pointers, they are named
+ ossl$libcrypto0101_shr64.exe and ossl$libssl0101_shr64.exe.
+
Note on random number generation
--------------------------------
projects / openssl.git / blobdiff