X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=INSTALL;h=7eaa8147c3b8563699d5e51ed9f3428ee6bd9c14;hp=ca4d403a3695a371616bc5d81395bed5f8941537;hb=daba492c3a461bbcc0df69d609124936a19205f6;hpb=ccb9643f02cbc57f2e88927ca8eef0189d92fc5a

diff --git a/INSTALL b/INSTALL
index ca4d403a36..7eaa8147c3 100644
--- 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
@@ -50,6 +53,15 @@
                 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
@@ -122,7 +134,7 @@
      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 +278,11 @@
  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