X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=INSTALL;h=63c88523c3a945f0bcade4eef3f3a618dca83aef;hp=7cbde1663bd0a863b9f48eba1dafb8361c612755;hb=d742bd882e7b9c124c56a97f4c0d86e34a8b3ec5;hpb=2d99cee790041acbf345bc0b04ea308ce76cd092 diff --git a/INSTALL b/INSTALL index 7cbde1663b..63c88523c3 100644 --- a/INSTALL +++ b/INSTALL @@ -2,13 +2,18 @@ INSTALLATION ON THE UNIX PLATFORM --------------------------------- - [Installation on Windows, OpenVMS and MacOS (before MacOS X) is described - in INSTALL.W32, INSTALL.VMS and INSTALL.MacOS.] + [Installation on DOS (with djgpp), Windows, OpenVMS and MacOS (before MacOS X) + is described in INSTALL.DJGPP, INSTALL.W32, INSTALL.VMS and INSTALL.MacOS. + This document describes installation on operating systems in the Unix + family.] To install OpenSSL, you will need: + * make * Perl 5 * an ANSI C compiler + * a development environment in form of development libraries and C + header files * a supported Unix operating system Quick Start @@ -43,9 +48,6 @@ --openssldir=DIR Directory for OpenSSL files. If no prefix is specified, the library files and binaries are also installed there. - rsaref Build with RSADSI's RSAREF toolkit (this assumes that - librsaref.a is in the library search path). - no-threads Don't try to build with support for multi-threaded applications. @@ -53,6 +55,21 @@ This will usually require additional system-dependent options! See "Note on multi-threading" below. + no-zlib Don't try to build with support for zlib compression and + decompression. + + zlib Build with support for zlib compression/decompression. + + zlib-dynamic Like "zlib", but has OpenSSL load the zlib library dynamically + when needed. This is only supported on systems where loading + of shared libraries is supported. This is the default choice. + + no-shared Don't try to create shared libraries. + + shared In addition to the usual static libraries, create shared + libraries on platforms where it's supported. See "Note on + shared libraries" below. + no-asm Do not use assembler code. 386 Use the 80386 instruction set only (the default x86 code is @@ -118,9 +135,15 @@ OpenSSL binary ("openssl"). The libraries will be built in the top-level directory, and the binary will be in the "apps" directory. - If "make" fails, please report the problem to - (note that your message will be forwarded to a public mailing list). - Include the output of "make report" in your message. + If "make" fails, look at the output. There may be reasons for + the failure that aren't problems in OpenSSL itself (like missing + standard headers). If it is a problem with OpenSSL itself, please + report the problem to (note that your + message will be recorded in the request tracker publicly readable + via http://www.openssl.org/rt2.html and will be forwarded to a public + mailing list). Include the output of "make report" in your message. + Please check out the request tracker. Maybe the bug was already + reported or has already been fixed. [If you encounter assembler error messages, try the "no-asm" configuration option as an immediate fix.] @@ -132,10 +155,14 @@ $ make test - If a test fails, try removing any compiler optimization flags from - the CFLAGS line in Makefile.ssl and run "make clean; make". Please - send a bug report to , including the - output of "make report". + If a test fails, look at the output. There may be reasons for + the failure that isn't a problem in OpenSSL itself (like a missing + or malfunctioning bc). If it is a problem with OpenSSL itself, + try removing any compiler optimization flags from the CFLAGS line + in Makefile.ssl and run "make clean; make". Please send a bug + report to , including the output of + "make report" in order to be added to the request tracker at + http://www.openssl.org/rt2.html. 4. If everything tests ok, install OpenSSL with @@ -253,3 +280,31 @@ you can still use "no-threads" to suppress an annoying warning message from the Configure script.) + + Note on shared libraries + ------------------------ + + Shared library is currently an experimental feature. The only reason to + have them would be to conserve memory on systems where several program + are using OpenSSL. Binary backward compatibility can't be guaranteed + before OpenSSL version 1.0. + + For some systems, the OpenSSL Configure script knows what is needed to + build shared libraries for libcrypto and libssl. On these systems, + the shared libraries are currently not created by default, but giving + the option "shared" will get them created. This method supports Makefile + 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 + -------------------------------- + + Availability of cryptographically secure random numbers is required for + secret key generation. OpenSSL provides several options to seed the + internal PRNG. If not properly seeded, the internal PRNG will refuse + to deliver random bytes and a "PRNG not seeded error" will occur. + On systems without /dev/urandom (or similar) device, it may be necessary + to install additional support software to obtain random seed. + Please check out the manual pages for RAND_add(), RAND_bytes(), RAND_egd(), + and the FAQ for more information.