To install OpenSSL, you will need:
- * Perl
- * C compiler
- * A supported Unix operating system
+ * Perl 5
+ * ANSI C compiler
+ * a supported Unix operating system
Quick Start
-----------
This will build and install OpenSSL in the default location, which is (for
historical reasons) /usr/local/ssl. If you want to install it anywhere else,
- do this after running `sh config':
+ do this after running `./config':
$ perl util/ssldir.pl /new/install/path
+ There are several options to ./config to customize the build:
+
+ rsaref Build with RSADSI's RSAREF toolkit.
+ no-asm Build with no assembler code.
+ 386 Use the 80386 instruction set only (the default x86 code is
+ more efficient, but requires at least a 486).
+
If anything goes wrong, follow the detailed instructions below. If your
operating system is not (yet) supported by OpenSSL, see the section on
porting to a new system.
If your system is not available, you will have to edit the Configure
program and add the correct configuration for your system.
- Configure configures various files by converting an existing .org file
- into the real file. If you edit any files, remember that if a
- corresponding .org file exists them the next time you run ./Configure
- your changes will be lost when the file gets re-created from the .org
- file. The files that are created from .org files are:
-
- Makefile.ssl
- crypto/des/des.h
- crypto/des/des_locl.h
- crypto/md2/md2.h
- crypto/rc4/rc4.h
- crypto/rc4/rc4_enc.c
- crypto/rc2/rc2.h
- crypto/bf/bf_locl.h
- crypto/idea/idea.h
- crypto/bn/bn.h
+ Configure creates the Makefile.ssl from Makefile.org and defines
+ various macros in crypto/opensslconf.h (generated from
+ crypto/opensslconf.h.in).
2. Set the install directory
for private key files.
+ NOTE: The header files used to reside directly in the include
+ directory, but have now been moved to include/openssl so that
+ OpenSSL can co-exist with other libraries which use some of the
+ same filenames. This means that applications that use OpenSSL
+ should now use C preprocessor directives of the form
+
+ #include <openssl/ssl.h>
+
+ instead of "#include <ssl.h>", which was used with library versions
+ up to OpenSSL 0.9.2b.
+
+ If you install a new version of OpenSSL over an old library version,
+ you should delete the old header files in the include directory.
+
+ Compatibility issues:
+
+ * COMPILING existing applications
+
+ To compile an application that uses old filenames -- e.g.
+ "#include <ssl.h>" --, it will usually be enough to find
+ the CFLAGS definition in the application's Makefile and
+ add a C option such as
+
+ -I/usr/local/ssl/include/openssl
+
+ to it.
+
+ But don't delete the existing -I option that points to
+ the ..../include directory! Otherwise, OpenSSL header files
+ could not #include each other.
+
+ * WRITING applications
+
+ To write an application that is able to handle both the new
+ and the old directory layout, so that it can still be compiled
+ with library versions up to OpenSSL 0.9.2b without bothering
+ the user, you can proceed as follows:
+
+ - Always use the new filename of OpenSSL header files,
+ e.g. #include <openssl/ssl.h>.
+
+ - Create a directory "incl" that contains only a symbolic
+ link named "openssl", which points to the "include" directory
+ of OpenSSL.
+ For example, your application's Makefile might contain the
+ following rule, if OPENSSLDIR is a pathname (absolute or
+ relative) of the directory where OpenSSL resides:
+
+ incl/openssl:
+ -mkdir incl
+ cd $(OPENSSLDIR) # Check whether the directory really exists
+ -ln -s `cd $(OPENSSLDIR); pwd`/include incl/openssl
+
+ You will have to add "incl/openssl" to the dependencies
+ of those C files that include some OpenSSL header file.
+
+ - Add "-Iincl" to your CFLAGS.
+
+ With these additions, the OpenSSL header files will be available
+ under both name variants if an old library version is used:
+ Your application can reach them under names like <openssl/foo.h>,
+ while the header files still are able to #include each other
+ with names of the form <foo.h>.
+
+
+
--------------------------------------------------------------------------------
The orignal Unix build instructions from SSLeay follow.
Note: some of this may be out of date and no longer applicable
projects / openssl.git / blobdiff