Fix MSVC builds for contrib transforms modules.

With this patch the MSVC build and installation will work correctly with
the transforms. However the python transform tests for hstore and ltree
are still disabled pending some further adjustments.

Michael Paquier with some tweaks from me.

src/tools/msvc/Install.pm

@@ -439,9 +439,12 @@ sub CopyContribFiles
 		while (my $d = readdir($D))
 		{
 			# These configuration-based exclusions must match vcregress.pl
-			next if ($d eq "uuid-ossp" && !defined($config->{uuid}));
-			next if ($d eq "sslinfo"   && !defined($config->{openssl}));
-			next if ($d eq "xml2"      && !defined($config->{xml}));
+			next if ($d eq "uuid-ossp"       && !defined($config->{uuid}));
+			next if ($d eq "sslinfo"         && !defined($config->{openssl}));
+			next if ($d eq "xml2"            && !defined($config->{xml}));
+			next if ($d eq "hstore_plperl"   && !defined($config->{perl}));
+			next if ($d eq "hstore_plpython" && !defined($config->{python}));
+			next if ($d eq "ltree_plpython"  && !defined($config->{python}));
 			next if ($d eq "sepgsql");
 
 			CopySubdirFiles($subdir, $d, $config, $target);

src/tools/msvc/vcregress.pl

@@ -262,9 +262,12 @@ sub contribcheck
 	foreach my $module (glob("*"))
 	{
 		# these configuration-based exclusions must match Install.pm
-		next if ($module eq "uuid-ossp" && !defined($config->{uuid}));
-		next if ($module eq "sslinfo"   && !defined($config->{openssl}));
-		next if ($module eq "xml2"      && !defined($config->{xml}));
+		next if ($module eq "uuid-ossp"       && !defined($config->{uuid}));
+		next if ($module eq "sslinfo"         && !defined($config->{openssl}));
+		next if ($module eq "xml2"            && !defined($config->{xml}));
+		next if ($module eq "hstore_plperl"   && !defined($config->{perl}));
+		next if ($module eq "hstore_plpython");
+		next if ($module eq "ltree_plpython");
 		next if ($module eq "sepgsql");
 
 		subdircheck("$topdir/contrib", $module);
@@ -375,7 +378,6 @@ sub fetchRegressOpts
 	$m =~ s{\\\r?\n}{}g;
 	if ($m =~ /^\s*REGRESS_OPTS\s*=(.*)/m)
 	{
-
 		# Substitute known Makefile variables, then ignore options that retain
 		# an unhandled variable reference.  Ignore anything that isn't an
 		# option starting with "--".