Make an extra note about shared libraries and backward compatibility.

[openssl.git] / INSTALL

diff --git a/INSTALL b/INSTALL
index ca4d403a3695a371616bc5d81395bed5f8941537..6634316cca93ae2b270a93ea5285ec9bdf77aa6f 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -7,8 +7,11 @@
 
  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
@@ -122,7 +125,7 @@
      directory, and the binary will be in the "apps" directory.
 
      If "make" fails, look at the output.  There may be reasons for
-     the failure that isn't a problem in OpenSSL itself (like missing
+     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 <openssl-bugs@openssl.org> (note that your
      message will be forwarded to a public mailing list).  Include the
@@ -266,6 +269,11 @@
  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