Support for HDF5

[Tux]

PDL tries to use Alien::HDF4 to find support for PDL::IO::HDF

My box with openSUSE Tumbleweed only has hdf5:

hdf5-1.12.3-1.1.x86_64
hdf5-devel-1.12.3-1.1.x86_64
hdf5-devel-data-1.12.3-1.1.x86_64
libhdf5-200-1.12.3-1.1.x86_64
libhdf5_cpp200-1.12.3-1.1.x86_64
libhdf5_fortran200-1.12.3-1.1.x86_64
libhdf5_hl200-1.12.3-1.1.x86_64
libhdf5_hl_cpp200-1.12.3-1.1.x86_64
libhdf5hl_fortran200-1.12.3-1.1.x86_64

Of course Alien::HDF4 will not find that, so PDL won't be able to support hdf5

[mohawk2]

Use https://metacpan.org/pod/PDL::IO::HDF5 for HDF5.

[mohawk2]

For posterity; thank you @Tux for supplying your build log. That showed the build process saying it was skipping HDF, no problem.

The actual failure was that t/inlinepdlpp.t was generating code using the installed (pre-2.086) PDL::PP, then C-compiling that against 2.089 pdlcore.h, which unsurprisingly failed. This is likely to be because the test_harness did not pass on its PERL5LIB correctly.