add documentation for SSLeay_version(SSLEAY_DIR) and

'openssl version -d'

use some descriptions from Lutz' redundant manual page
instead of the previous ones

doc/apps/version.pod

@@ -46,6 +46,10 @@ compilation flags.
 
 platform setting.
 
+=item B<-d>
+
+OPENSSLDIR setting.
+
 =back
 
 =head1 NOTES
@@ -53,4 +57,8 @@ platform setting.
 The output of B<openssl version -a> would typically be used when sending
 in a bug report.
 
+=head1 HISTORY
+
+The B<-d> option was added in OpenSSL 0.9.7.
+
 =cut

doc/crypto/OPENSSL_VERSION_NUMBER.pod

@@ -55,23 +55,33 @@ SSLeay_version() returns different strings depending on B<t>:
 =over 4
 
 =item SSLEAY_VERSION
+
 The text variant of the version number and the release date.  For example,
 "OpenSSL 0.9.5a 1 Apr 2000".
 
 =item SSLEAY_CFLAGS
-The flags given to the C compiler when compiling OpenSSL are returned in a
-string.
+
+The compiler flags set for the compilation process in the form
+"compiler: ..."  if available or "compiler: information not available"
+otherwise.
+
+=item SSLEAY_BUILT_ON
+
+The date of the build process in the form "built on: ..." if available
+or "built on: date not available" otherwise.
 
 =item SSLEAY_PLATFORM
-The platform name used when OpenSSL was configured is returned.
+
+The "Configure" target of the library build in the form "platform: ..."
+if available or "platform: information not available" otherwise.
+
+=item SSLEAY_DIR
+
+The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
+if available or "OPENSSLDIR: N/A" otherwise.
 
 =back
 
-If the data request isn't available, a text saying that the information is
-not available is returned.
-
-For an unknown B<t>, the text "not available" is returned.
-
 =head1 RETURN VALUE
 
 The version number.
@@ -84,5 +94,6 @@ L<crypto(3)|crypto(3)>
 
 SSLeay() and SSLEAY_VERSION_NUMBER are available in all versions of SSLeay and OpenSSL.
 OPENSSL_VERSION_NUMBER is available in all versions of OpenSSL.
+B<SSLEAY_DIR> was added in OpenSSL 0.9.7.
 
 =cut

doc/crypto/SSLeay_version.pod

@@ -0,0 +1,74 @@
+=pod
+
+=head1 NAME
+
+SSLeay_version - retrieve version/build information about OpenSSL library
+
+=head1 SYNOPSIS
+
+ #include <openssl/crypto.h>
+
+ const char *SSLeay_version(int type);
+
+=head1 DESCRIPTION
+
+SSLeay_version() returns a pointer to a constant string describing the
+version of the OpenSSL library or giving information about the library
+build.
+
+The following B<type> values are supported:
+
+=over 4
+
+=item SSLEAY_VERSION
+
+The version of the OpenSSL library including the release date.
+
+=item SSLEAY_CFLAGS
+
+The compiler flags set for the compilation process in the form
+"compiler: ..."  if available or "compiler: information not available"
+otherwise.
+
+=item SSLEAY_BUILT_ON
+
+The date of the build process in the form "built on: ..." if available
+or "built on: date not available" otherwise.
+
+=item SSLEAY_PLATFORM
+
+The "Configure" target of the library build in the form "platform: ..."
+if available or "platform: information not available" otherwise.
+
+=item SSLEAY_DIR
+
+The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
+if available or "OPENSSLDIR: N/A" otherwise.
+
+=back
+
+=head1 RETURN VALUES
+
+The following return values can occur:
+
+=over 4
+
+=item "not available"
+
+An invalid value for B<type> was given.
+
+=item Pointer to constant string
+
+Textual description.
+
+=back
+
+=head1 SEE ALSO
+
+L<crypto(3)|crypto(3)>
+
+=head1 HISTORY
+
+B<SSLEAY_DIR> was added in OpenSSL 0.9.7.
+
+=cut