Makefile.PL: let Alien::gdal provide all the GDAL details

Makefile.PL

@@ -1,70 +1,10 @@
 use strict;
 use warnings;
 
-my $have_alien;
-BEGIN {
-    my $gdal = 'Alien::gdal';
-    my @argv = ();
-    for (@ARGV) {
-        if (/GDAL=(.+)/) {
-            $gdal = $1;
-        } else {
-            push @argv, $_;
-        }
-    }
-    @ARGV = @argv;
-    eval "use Alien::gdal" if $gdal eq 'Alien::gdal';
-    if ($gdal ne 'Alien::gdal' or $@) {
-        if ($gdal eq 'Alien::gdal') {
-            print "I can't find Alien::gdal.\n";
-            $gdal = '/usr';
-        }
-        print "Trying GDAL from '$gdal'.\n";
-        $have_alien = 0;
-        my $version = `$gdal/bin/gdalinfo --version`;
-        unless ($version) {
-            print "I can't find gdal in '$gdal', I'm sorry.\n";
-            exit(1);
-        }
-        $version = $1 if $version =~ /(\d+\.\d+\.\d+)/;
-        my @a = (grep {-l} glob("$gdal/lib/libgdal*"));
-        my $lib = $a[0];
-        my $data = "$gdal/share/gdal";
-        print "I'm creating Geo::GDAL::gdal as a wrapper to $lib, which I believe is GDAL $version.\n";
-        my $fh = IO::File->new;
-        $fh->open("lib/Geo/GDAL/gdal.pm","w");
-        print $fh <<EOF;
-package Geo::GDAL::gdal;
-use strict;
-use warnings;
-sub new {
-    return shift;
-}
-sub version {
-    return '$version';
-}
-sub data_dir {
-    return ('$data');
-}
-sub dynamic_libs {
-    return '$lib';
-}
-1;
-EOF
-    } else {
-        eval "use Alien::Base::Wrapper qw(Alien::gdal !export)";
-        $have_alien = 1;
-        my $fh = IO::File->new;
-        $fh->open("lib/Geo/GDAL/gdal.pm","w");
-        print $fh <<EOF;
-package Geo::GDAL::gdal;
-use strict;
-use warnings;
-1;
-EOF
-    }
-}
-use ExtUtils::MakeMaker;
+
+use ExtUtils::MakeMaker 6.52;
+
+
 use Config;
 my %args = (
     AUTHOR => ['Ari Jolma <ari.jolma at gmail.com>'],
@@ -104,8 +44,5 @@ my %args = (
         },
     },
 );
-if ($have_alien) {
-    %args = (%args, Alien::Base::Wrapper->mm_args);
-}
 
 WriteMakefile(%args);