--- Makefile.PL.orig	2024-12-09 01:33:50 UTC
+++ Makefile.PL
@@ -16,7 +16,6 @@ WriteMakefile(
     'ExtUtils::MakeMaker' => 0,
     'PDL' => '2.094',
     'ExtUtils::Depends' => '0.402',
-    'Alien::HDF4' => 0,
   },
   PREREQ_PM => {
     'PDL' => '2.094',
--- SD/Makefile.PL.orig	2024-12-03 03:29:01 UTC
+++ SD/Makefile.PL
@@ -4,8 +4,9 @@ my $package = [ qw(SD.pd SD PDL::IO::HDF::SD) ];
 use Config;
 
 my $package = [ qw(SD.pd SD PDL::IO::HDF::SD) ];
-my $pkg = ExtUtils::Depends->new(qw(PDL::IO::HDF::SD Alien::HDF4));
+my $pkg = ExtUtils::Depends->new(qw(PDL::IO::HDF::SD));
 $pkg->set_inc(&PDL_INCLUDE());
+$pkg->set_libs("-ldf -lmfhdf");
 $pkg->add_typemaps(&PDL_TYPEMAP());
 $pkg->add_pm(
     'SD.pm' => '$(INST_LIBDIR)/SD.pm',
--- VS/Makefile.PL.orig	2024-12-03 03:29:08 UTC
+++ VS/Makefile.PL
@@ -8,8 +8,9 @@ undef &MY::postamble; # suppress warning
 undef &MY::postamble; # suppress warning
 *MY::postamble = sub { pdlpp_postamble($package); };
 
-my $pkg = ExtUtils::Depends->new(qw(PDL::IO::HDF::VS Alien::HDF4));
+my $pkg = ExtUtils::Depends->new(qw(PDL::IO::HDF::VS));
 $pkg->set_inc(&PDL_INCLUDE());
+$pkg->set_libs("-ldf -lmfhdf");
 $pkg->add_typemaps(&PDL_TYPEMAP());
 $pkg->add_pm(
     'VS.pm' => '$(INST_LIBDIR)/VS.pm',