Building on HP OpenVMS
======================
You'll need to either build and install OpenSSL from source using the authoritative
sources from openssl.org or install the HP-supplied PCSI kit.  The former is more likely
to be up-to-date and gets you SSL object libraries that that will be linked into the
Net::SSLeay shareable image.  That means no updates to SSL without updating Net::SSLeay,
but that could be a good thing if OpenSSL changes the API and breaks binary compability
again.  The latter (HP install) gives you the possibility of SSL updates without
rebuilding Net::SSLeay assuming the upgrade is binary compatible, and also gets you the
possibility of support from HP if you encounter a problem that is within the SSL
libraries.  If you don't know what any of this means, just use whatever is already on
your system (if anything) or install whatever is easiest.

Once you've got a working installation of the SSL libraries, the steps to build
Net::SSLeay on VMS are really the same as building any other package,and should look
something like:

 $ gzip -d Net-SSLeay-xx.xx.tar.gz
 $ vmstar -xvf Net-SSLeay-xx.xx.tar
 $ rename Net-SSLeay-xx.xx.DIR Net-SSLeay-xx_xx.DIR ! avoid dots in dirname
 $ set default [.Net-SSLeay-xx_xx]
 $ perl Makefile.PL
 $ mmk
 $ mmk test
 $ mmk install

Note that Net::SSLeay uses Module::Install, which as of 1.06 does not work on VMS. A patch
has been sent upstream but in case it hasn't made its way back downstream yet and you
bomb out trying to run the Makefile.PL for Net::SSLeay, try the following patch, which
patches the local [.inc] version of Module::Install embedded in Net::SSLeay.  (It may also
be applicable other modules that use Module::Install.)

--- inc/Module/Install.pm.orig	2012-09-03 11:40:44 -0500
+++ inc/Module/Install.pm	2012-09-21 16:19:55 -0500
@@ -244,6 +244,8 @@ sub new {
 	}
 	return $args{_self} if $args{_self};
 
+	$base_path = VMS::Filespec::unixify($base_path) if $^O eq 'VMS';
+
 	$args{dispatch} ||= 'Admin';
 	$args{prefix}   ||= 'inc';
 	$args{author}   ||= ($^O eq 'VMS' ? '_author' : '.author');
@@ -322,7 +325,7 @@ sub find_extensions {
 	my ($self, $path) = @_;
 
 	my @found;
-	File::Find::find( sub {
+	File::Find::find( {no_chdir => 1, wanted => sub {
 		my $file = $File::Find::name;
 		return unless $file =~ m!^\Q$path\E/(.+)\.pm\Z!is;
 		my $subpath = $1;
@@ -336,9 +339,9 @@ sub find_extensions {
 		# correctly.  Otherwise, root through the file to locate the case-preserved
 		# version of the package name.
 		if ( $subpath eq lc($subpath) || $subpath eq uc($subpath) ) {
-			my $content = Module::Install::_read($subpath . '.pm');
+			my $content = Module::Install::_read($File::Find::name);
 			my $in_pod  = 0;
-			foreach ( split //, $content ) {
+			foreach ( split /\n/, $content ) {
 				$in_pod = 1 if /^=\w/;
 				$in_pod = 0 if /^=cut/;
 				next if ($in_pod || /^=cut/);  # skip pod text
@@ -351,7 +354,7 @@ sub find_extensions {
 		}
 
 		push @found, [ $file, $pkg ];
-	}, $path ) if -d $path;
+	}}, $path ) if -d $path;
 
 	@found;
 }
--- inc/Module/Install/Can.pm;-0	2012-09-03 11:38:43 -0500
+++ inc/Module/Install/Can.pm	2012-09-21 17:07:15 -0500
@@ -121,6 +121,15 @@ END_C
 # Can we locate a (the) C compiler
 sub can_cc {
 	my $self   = shift;
+
+        if ($^O eq 'VMS') {
+            require ExtUtils::CBuilder;
+            my $builder = ExtUtils::CBuilder->new(
+		quiet => 1,
+            );
+            return $builder->have_compiler;
+        }
+
 	my @chunks = split(/ /, $Config::Config{cc}) or return;
 
 	# $Config{cc} may contain args; try to find out the program part
[end of patch to Module::Install]