--- a/Build.PL	Wed Apr 01 11:19:29 2015 +0200
+++ b/Build.PL	Thu Apr 02 16:10:49 2015 +0200
@@ -6,38 +6,9 @@
 # b0rken umlauts in MYMETA.* files otherwise
 use utf8;
 
-use Module::Build;
-
-my $class = Module::Build->subclass
-(
-    class => 'My::Builder',
-    relpath => { nagiosplugins => 'lib/nagios/plugins/ius' },
-    code => q{
-        sub ACTION_install {
-                my $self = shift;
-                my $relpath;
-                $relpath->{nagiosplugins} = 'lib/nagios/plugins/ius';
-#                for (qw(nagiosplugins)) {
-#                    $self->install_base_relpaths($_, $relpath->{$_});
-#                    $self->prefix_base_relpaths($_, $relpath->{$_});
-#                }
-                use Data::Dumper;
-                print Dumper($self);
-                print Dumper($self->install_base_relpaths());
-                print Dumper($self->prefix_relpaths());
-                print Dumper($self->installdirs());
-                print Dumper($self->install_path());
-                print Dumper($self->install_base());
-                print Dumper($self->install_destination('nagiosplugins'));
-                print Dumper($self->install_types());
-                $self->SUPER::ACTION_install;
-        }
-    },
-);
-
-#my $build = Module::Build->new
-my $build = $class->new
-(
+use lib '.';
+use My::Builder;
+my $build = My::Builder->new(
     dist_name => 'nagios-plugin-cert',
     dist_author => 'Matthias Förste',
     dist_version_from => 'check_cert.pl',
@@ -46,23 +17,10 @@
         'Crypt::OpenSSL::PKCS12' => 0,
         'Crypt::OpenSSL::X509' => 0
     },
-    extra_files => {
+    check_files => {
         'check_cert.pl' => 'nagiosplugins/check_cert'
     }
 );
-$build->add_build_element('extra');
-for my $e (qw(nagiosplugins)) {
-    # these seem to be used only when --install-base or --prefix is explicitly given; if only --installdirs or nothing at all is given we probably need to set install_path
-    $build->install_base_relpaths($e => $build->{relpath}->{$e});
-    $build->prefix_relpaths($_, $e => $build->{relpath}->{$e}) for (qw(site core vendor));
-}
-#$build->install_path(nagiosplugin => Module::Build::install_base() . 'lib/nagios/plugins/ius');
 
+$build->add_build_element('check');
 $build->create_build_script;
-use Data::Dumper;
-#print Dumper($build->install_base_relpaths());
-#print Dumper($build->prefix_relpaths());
-#print Dumper($build->installdirs());
-#print Dumper($build->install_path());
-#print Dumper($build->install_base());
-print Dumper($build);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/My/Builder.pm	Thu Apr 02 16:10:49 2015 +0200
@@ -0,0 +1,20 @@
+use strict;
+use warnings;
+
+package My::Builder;
+use Module::Build;
+our @ISA = qw(Module::Build);
+
+sub ACTION_install {
+
+    my $self = shift;
+    my $prefix = $self->install_base()
+        // $self->prefix()
+        // $self->config( { site => 'siteprefix', vendor => 'vendorprefix', core => 'prefix' }->{$self->installdirs()} )
+        // die 'this should not happen';
+
+    $self->install_path('nagiosplugins', "$prefix/lib/nagios/plugins/ius");
+    $self->SUPER::ACTION_install;
+
+}
+1;