File Coverage

blib/lib/CPAN/Plugin/Sysdeps/Mapping.pm

Criterion	Covered	Total	%
statement	73	73	100.0
branch	1	2	50.0
condition			n/a
subroutine	25	25	100.0
pod	1	1	100.0
total	100	101	99.0

package CPAN::Plugin::Sysdeps::Mapping;

use strict;
use warnings;

our $VERSION = '0.81';

# shortcuts
#  os and distros
use constant os_freebsd  => (os => 'freebsd');
use constant os_dragonfly => (os => 'dragonfly');
use constant os_openbsd  => (os => 'openbsd');
use constant os_windows  => (os => 'MSWin32');
use constant os_darwin   => (os => 'darwin'); # really means installer=homebrew
use constant like_debian => (linuxdistro => '~debian');
use constant before_ubuntu_trusty  => (linuxdistrocodename => [qw(squeeze precise wheezy)]);
use constant before_ubuntu_xenial  => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie)]);
use constant before_debian_stretch => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial)]);
use constant before_ubuntu_bionic  => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch)]);
use constant before_debian_buster  => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic)]);
use constant before_ubuntu_focal   => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic buster)]);
use constant before_debian_bullseye=> (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic buster focal)]);
use constant before_ubuntu_jammy   => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic buster focal bullseye)]);
use constant before_debian_bookworm=> (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic buster focal bullseye jammy)]);
use constant before_ubuntu_noble   => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic buster focal bullseye jammy bookworm)]);
use constant before_debian_trixie  => (linuxdistrocodename => [qw(squeeze precise wheezy trusty jessie xenial stretch bionic buster focal bullseye jammy bookworm noble)]);
use constant like_fedora => (linuxdistro => '~fedora');
use constant like_alpine => (linuxdistro => '~alpine');
#  package shortcuts
use constant freebsd_old_jpeg => 'jpeg | jpeg-turbo'; # older freebsd (e.g. 8, 9)
use constant freebsd_new_jpeg => 'jpeg-turbo | jpeg'; # newer freebsd (e.g. 13, 14, 15)
use constant freebsd_new_jpeg_osvers => 13;

sub mapping {
    (
     [cpanmod => 'AI::LibNeural',
      [os_freebsd,
       [package => 'libneural']], # but marked as broken (unfetchable)
      # not available for debian or centos
     ],

     [cpanmod => 'AI::PBDD',
      [os_freebsd,
       # but does not work, kernel.h is also required
       [package => 'bddsolve']],
      [like_debian,
       # but does not work, kernel.h is also required
       [package => 'libbdd-dev']]],

     [cpanmod => ['Algorithm::ConstructDFA::XS', 'Algorithm::LibLinear'],
      # FreeBSD has c++ in the base system
      [like_debian,
       [package => 'g++']],
     ],

     ## Does not help, tests still fail (Alien-Electron-0.102):
     #[cpanmod => 'Alien::Electron',
     # [like_debian,
     #  [package => 'libnotify4']]],

     [cpanmod => 'Alien::ffmpeg',
      [os_freebsd,
       [package => 'yasm']],
      [like_debian,
       [package => 'yasm']],
      [like_fedora,
       [package => 'yasm']],
      [os_darwin,
       [package => 'yasm']],
     ],

     [cpanmod => 'Alien::FFTW3',
      [os_freebsd,
       [package => ['fftw3', 'pkgconf']]],
      [like_debian,
       [package => ['libfftw3-dev', 'pkg-config | pkgconf']]],
     ],

     [cpanmod => 'Alien::HDF4',
      [os_freebsd,
       [package => 'hdf']],
      [like_debian,
       # "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
       [package => ['libhdf4-dev', 'yasm']]],
      [like_fedora,
       [package => 'hdf-devel']],
      [os_darwin,
       [package => 'hdf4']], # but does not work, module expects static libdf.a which is not provided
     ],

     [cpanmod => 'Alien::IUP',
      [os_freebsd,
       [package => [qw(gtk2 cairo freeglut)]]],
      [like_debian,
       [package => [qw(libgtk-3-dev libcairo2-dev libx11-dev libglu-dev freeglut3-dev)]]],
      [like_fedora,
       [package => [qw(gtk2-devel cairo-devel libX11-devel libGLU-devel freeglut-devel)]]],
     ],

     [cpanmod => 'Alien::LibJIT',
      [like_debian,
       [package => [qw(autoconf libtool flex bison texinfo)]]], # but no success building it
     ],

     [cpanmod => 'Alien::libtickit',
      [like_debian,
       [before_ubuntu_bionic,
	[package => []]],
       [package => 'libtickit-dev']],
     ],

     [cpanmod => 'Alien::LibUSBx',
      # XXX what about freebsd?
      [like_debian,
       [package => 'libudev-dev']]],

     [cpanmod => 'Alien::LibYAML',
      [like_debian,
       [package => 'autoconf']],
      # XXX what about freebsd?
     ],

     [cpanmod => 'Alien::libtermkey',
      [os_freebsd,
       [osvers => {'>=', 10}, # proxy check for clang system
	[package => ['libtool', 'gmake', 'pkgconf', 'libtermkey']], # see also RT #91873
       ],
       [package => ['libtool', 'gmake', 'pkgconf']]],
      [like_debian,
       [linuxdistrocodename => ['squeeze','wheezy'],
	[package => ['libtool', 'libncurses5-dev']]],
       [package => ['libtool-bin', 'libncurses5-dev']]],
      [like_fedora,
       [package => ['libtool', 'ncurses-devel']]],
     ],

     [cpanmod => 'Alien::NSS', # cannot install external package, see https://github.com/0xxon/alien-nss/issues/5#issuecomment-488220899
      [os_freebsd,
       [package => 'nss']],
      [like_debian,
       [before_ubuntu_trusty, # at least not available in debian/wheezy
	[package => []]],
       [package => 'libnss3-dev']],
      [like_fedora,
       [package => 'nss-devel']],
     ],

     [cpanmod => 'Alien::proj',
      [os_freebsd,
       [osvers => {'>=', 13},
	[package => ['proj']]]],
      [like_debian,
       [before_ubuntu_focal, # Alien::proj needs at least version 6.1, see https://metacpan.org/release/SLAFFAN/Alien-proj-1.27/source/alienfile#L60 which is satisfied with https://packages.ubuntu.com/search?keywords=libproj-dev&searchon=names&suite=all§ion=all and later. Building from source currently fails.
	[package => ['g++']]],
       [package => ['libproj-dev', 'g++']]],
      [like_fedora,
       [package => ['gcc-c++']]],
     ],

     [cpanmod => 'Alien::ProtoBuf',
      # but why? shouldn't an alien module care about its own external library?
      [os_freebsd,
       [package => 'protobuf']],
      [like_debian,
       [package => 'libprotobuf-dev']],
      [like_fedora,
       [package => 'protobuf-devel']],
     ],

     [cpanmod => 'Alien::raylib',
      [os_freebsd,
       [package => [qw(alsa-lib)]]], # XXX maybe more?
      [like_debian,
       [package => [qw(libasound2-dev libxcursor-dev libxinerama-dev mesa-common-dev libx11-dev libxrandr-dev libxi-dev libgl1-mesa-dev libglu1-mesa-dev)]]],
      [like_fedora,
       [package => 'libXrandr-devel']], # XXX maybe more?
     ],

     [cpanmod => 'Alien::RRDtool',
      [os_freebsd,
       [package => ['pkgconf', 'glib', 'cairo', 'pango', 'libxml2']]],
      [like_debian,
       [package => 'pkg-config | pkgconf']]], # XXX pkg-config probably needed by much more CPAN distributions...

     [cpanmod => 'Alien::sispmctl',
      [like_debian,
       [package => 'libusb-dev']]],

     [cpanmod => 'Alien::SVN',
      [os_freebsd,
       # does not work, configure does not recognize sqlite
       [package => ['apr', 'sqlite3']]],
      [like_debian,
       [package => ['libapr1-dev', 'libaprutil1-dev', 'libsqlite3-dev', 'zlib1g-dev']]],
      [like_fedora,
       [package => [qw(apr-devel apr-util-devel sqlite-devel)]]],
     ],

     [cpanmod => 'Alien::unibilium',
      # XXX what about freebsd?
      [os_freebsd,
       [package => ['gmake', 'libtool', 'pkgconf']]],
      [like_debian,
       [linuxdistrocodename => ['squeeze','wheezy'],
	[package => 'libtool']],
       [package => 'libtool-bin']],
     ],

     [cpanmod => 'Alien::Uninum', # probably!
      [os_freebsd,
       # XXX does not work, configure does not accept -lgmp
       [package => 'gmp']],
      # XXX what about debian?
     ],

     [cpanmod => 'Alien::uPB',
      # freebsd and darwin have /usr/bin/unzip in the base system
      [os => 'linux',
       [package => 'unzip']],
     ],

     [cpanmod => 'Alien::wxWidgets',
      [os_freebsd,
      # XXX what about freebsd?
       [package => ['gtk2', 'pkgconf']]],
      [like_debian,
       [package => 'libgtk2.0-dev']]],

     # needed because of https://github.com/PerlAlien/Alien-xz/issues/11
     [cpanmod => 'Alien::xz',
      [like_fedora,
       [package => [qw(xz xz-devel)]]],
      [like_debian,
       [package => [qw(xz-utils liblzma-dev)]]],
     ],

     [cpanmod => 'App::Stacktrace',
      # does not work with freebsd anyway
      [like_debian,
       [package => 'gdb']],
      [like_fedora,
       [package => 'gdb']],
     ],

     [cpanmod => 'Archive::Peek::Libarchive',
      [os_freebsd,
       [package => 'libarchive']],
      [like_debian,
       [package => 'libarchive-dev']],
      [like_fedora,
       [package => 'libarchive-devel']],
     ],

     [cpanmod => 'Archive::Rar',
      [os_freebsd,
       [package => 'rar'], # restricted, no binary package available, must build from ports
      ],
      [like_debian,
       [package => 'rar'], # available in jessie/non-free
      ]],

     [cpanmod => 'Archive::Raw',
      [os_freebsd,
       [package => []]], # FreeBSD has archive.h in the base system, and works for freebsd 11 .. 13
      [like_debian,
       [package => 'libarchive-dev']], # but seems to work only with bullseye, not with wheezy .. buster
      [like_fedora,
       [package => 'libarchive-devel']], # but seems to work only with fedora28, not with CentOS6+7+8
     ],

     [cpanmod => 'Archive::SevenZip',
      [os_freebsd,
       [package => 'p7zip']],
      [os_dragonfly,
       [package => 'p7zip']],
      [like_debian,
       [package => 'p7zip-full']]],

     [cpanmod => 'Astro::FITS::CFITSIO',
      [os_freebsd,
       [package => 'cfitsio']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise xenial)],
	[package => 'libcfitsio3-dev']],
       [package => 'libcfitsio-dev']],
      [like_fedora,
       [package => 'cfitsio-devel']], # but test fails on CentOS7 (undefined symbol: ffgsky)
      [os_darwin,
       [package => 'homebrew/science/cfitsio']],
     ],

     [cpanmod => 'Astro::WCS::LibWCS',
      ## not checked:
      #[os_freebsd,
      # [package => 'astrometry']],
      [like_debian,
       [package => 'libwcstools-dev']]],

     [cpanmod => 'Audio::Ao',
      [os_freebsd,
       [package => 'libao']],
      [like_debian,
       [package => 'libao-dev']],
      [like_fedora,
       [package => 'libao-devel']],
     ],

     [cpanmod => 'Audio::Audiere',
      [os_freebsd,
       [package => 'audiere']], # but compilation failures
      # no package for Debian & CentOS7
     ],

     [cpanmod => 'Audio::CD',
      [os_freebsd,
       [package => 'libcdaudio']],
      [os_dragonfly,
       [package => 'libcdaudio']],
      [like_debian,
       [package => 'libcdaudio-dev']],
      [like_fedora,
       [package => 'libcdaudio-devel']],
     ],

     [cpanmod => 'Audio::Extract::PCM',
      # but does not work with freebsd, see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205732
      [package => 'sox']],

     [cpanmod => 'Audio::FLAC::Decoder',
      [os_freebsd,
       [package => 'flac']],
      [like_debian,
       [package => 'libflac-dev']],
      [like_fedora,
       [package => 'flac-devel']],
     ],

     [cpanmod => 'Audio::GSM',
      [os_freebsd,
       [package => 'gsm']],
      [os_dragonfly,
       [package => 'gsm']],
      [like_debian,
       [package => 'libgsm1-dev']],
      [like_fedora,
       [package => 'gsm-devel']],
     ],

     [cpanmod => 'Audio::LibSampleRate',
      [os_freebsd,
       [package => 'libsamplerate']],
      [like_debian,
       [package => 'libsamplerate0-dev']]],

     [cpanmod => 'Audio::MPEG',
      [os_freebsd,
       [package => 'lame']], # restricted, no binary package available, must build from ports
      [like_debian,
       [package => 'libmp3lame-dev']], # but compilation fails
     ],

     [cpanmod => 'Audio::Ofa',
      ## from freebsd's MOVED: "2017-03-01|Has expired: MusicDNS service has been discontinued"
      #[os_freebsd,
      # [package => 'libofa']],
      [like_debian,
       [package => 'libofa0-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^[68]\.},
	package => []], # N/A for centos6+8
       [package => 'libofa-devel']],
     ],

     [cpanmod => 'Audio::Opusfile',
      [os_freebsd,
       [package => 'opusfile']],
      [like_debian,
       [package => 'libopusfile-dev']]],

     [cpanmod => 'Audio::PortAudio',
      [os_freebsd,
       [package => ['portaudio', 'pkgconf']]],
      [like_debian,
       # conflicts with libjack0
       [package => 'portaudio19-dev']],
      [like_fedora,
       [package => 'portaudio-devel']],
     ],

     [cpanmod => 'Audio::SndFile',
      [os_freebsd,
       [package => ['libsndfile', 'pkgconf']]],
      [like_debian,
       [package => 'libsndfile1-dev']],
      [like_fedora,
       [package => 'libsndfile-devel']],
     ],

     [cpanmod => 'Audio::TagLib',
      [os_freebsd,
       [package => 'taglib']],
      [like_debian,
       # but does only work with newer debians (like stretch), because the module wants taglib 1.9.1 (e.g. wheezy has 1.7.2-1)
       [package => ['libtag1-dev', 'g++']]],
      [like_fedora,
       [package => 'taglib-devel']], # at least on centos6 does not work: provided taglib is 1.6.1, but module wants 1.11 or greater
      [os_darwin, # ... but does not seem to build
       [package => 'taglib']],
     ],

     [cpanmod => ['Authen::Krb5Password', 'GSSAPI'],
      [os_freebsd,
       [package => 'krb5 | heimdal']], # heimdal shadows tools like "su", so put it behind krb5
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie)],
	[package => 'heimdal-dev | libkrb5-dev']],
       [package => 'libkrb5-dev']],
      [like_fedora,
       [package => 'krb5-devel']],
      [os_darwin,
       [package => 'krb5']],
     ],

     [cpanmod => ['Authen::SASL::Cyrus', 'Authen::SASL::XS'],
      [os_freebsd,
       [package => 'cyrus-sasl']],
      [like_debian,
       [package => 'libsasl2-dev']]],

     [cpanmod => 'Barcode::ZBar',
      [os_freebsd,
       [package => 'zbar']],
      [like_debian,
       [package => 'libzbar-dev']],
      [like_fedora,
       [package => 'zbar-devel']],
      [os_darwin,
       [package => 'zbar']], # but tests fails (Barcode-ZBar-0.04)
     ],

     [cpanmod => ['BerkeleyDB', 'BDB'],
      [os_freebsd,
       # FreeBSD has libdb in the base system, but this version is too old.
       # Make sure that a corresponding distroprefs file matches this library.
       [package => 'db18']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'libdb4.8-dev']],
       [linuxdistrocodename => ['wheezy', 'precise'],
	[package => 'libdb5.1-dev']],
       [package => 'libdb5.3-dev']], # e.g. jessie, stretch, trusty, xenial, yakkety, zesty
      [os_darwin,
       # Make sure that a corresponding distroprefs file matches this library (see srezic-cpan-distroprefs).
       [package => 'berkeley-db']],
      [like_fedora,
       [package => 'libdb-devel']],
     ],

     [cpanmod => 'Bio::HTS',
      [os_freebsd,
       # htslib exists, but does not seem to be compatible with the perl module
       [package => 'htslib']],
      [like_debian,
       # also does not work...
       [package => 'libhts-dev']]],

     [cpanmod => 'Bio::Phylo::Beagle',
      # XXX what about freebsd?
      [like_debian,
       [package => ['libhmsbeagle-dev', 'pkg-config | pkgconf']]]],

     [cpanmod => 'Bio::SCF',
      [os_freebsd,
       [package => 'io_lib']],
      [like_debian,
       [package => ['libstaden-read-dev', 'zlib1g-dev']]],
      [like_fedora,
       [linuxdistro => 'fedora', # not available for centos6+7, only for fedora28
	[package => 'staden-io_lib-devel']]],
     ],

     [cpanmod => 'Cache::Memcached::XS',
      [os_freebsd,
       [package => 'libmemcache']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy', 'xenial'], # but tests fail on xenial
	[package => 'libmemcache-dev']],
       [package => []], # in jessie there's no package containing include/memcache.h
      ]],

     [cpanmod => 'Cache::RedisDB',
      # real testing with redis-server
      [os_freebsd,
       [package => 'redis']],
      [os_openbsd,
       [package => 'redis']],
      [like_debian,
       [package => 'redis-server']]],

     [cpanmod => ['Cairo', 'Prima::Cairo'],
      [os_freebsd,
       [package => 'cairo']],
      [os_dragonfly,
       [package => 'cairo']],
      [os_openbsd,
       [package => 'cairo']],
      [like_debian,
       [package => 'libcairo2-dev']],
      [like_fedora,
       [package => 'cairo-devel']],
      [os_darwin,
       [package => 'cairo']]],

     [cpanmod => 'Cairo::GObject',
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => []]],
       [package => 'cairo-gobject-devel']],
     ],

     [cpanmod => 'Capstone',
      [os_freebsd,
       [package => 'capstone']],
      [like_debian,
       [package => 'libcapstone-dev']], # but test failures with Capstone 0.6 @ jessie
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	package => []], # N/A for centos6
       [package => 'capstone-devel']],
     ],

     [cpanmod => 'CDB::TinyCDB',
      [os_freebsd,
       [package => 'tinycdb']],
      [like_debian,
       [package => 'libcdb-dev']],
      [like_fedora,
       [package => 'tinycdb-devel']],
      [os_darwin,
       [package => 'tinycdb']], # but test failures
     ],

     [cpanmod => 'CDB_File::Generator',
      [os_freebsd,
       [package => 'cdb']],
      [like_debian,
       [package => 'freecdb']]],

     [cpanmod => 'Ceph::Rados',
      #[os_freebsd,
      # [package => 'ceph']], # XXX installation takes ~375MB --- could it be made smaller?
      [like_debian,
       [package => 'librados-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^7\.},
	package => 'librados2-devel'],
       [linuxdistro => 'fedora',
	linuxdistroversion => '28',
	package => 'librados-devel'], # XXX but compilation errors
      ],
     ],

     [cpanmod => 'Ceph::Rados::Striper',
      [like_debian,
       [before_ubuntu_xenial,
	[package => []]],
       [package => 'libradosstriper-dev']],
     ],

     [cpanmod => 'Chandra',
      [like_debian,
       [before_ubuntu_trusty, # at least not available in debian/wheezy
	[package => []]],
       [before_ubuntu_noble,
	[package => 'libwebkit2gtk-4.0-dev']],
       [package => 'libwebkit2gtk-4.1-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^[67]\.},
	package => []], # N/A for centos6+7
       [linuxdistro => 'rocky',
	[package => 'webkit2gtk3-devel']], # at least rocky 9
       [linuxdistro => 'fedora', linuxdistroversion => {'<', 37},
	[package => 'webkit2gtk3-devel']],
       [linuxdistro => 'fedora', linuxdistroversion => {'<', 38},
	[package => 'webkit2gtk4.0-devel']],
       [linuxdistro => 'fedora',
	[package => 'webkit2gtk4.1-devel']],
       [package => []]],
      ## XXX does not seem to exist, at least in standard alpine:3.21
      #[like_alpine,
      # [package => 'webkit2gtk-dev']],
      [os_freebsd,
       [osvers => {'>=', 13},
	[package => 'webkit2-gtk_40']]], # XXX does not seem to be sufficient...
     ],

     [cpanmod => 'Chipcard::PCSC',
      # XXX what about freebsd?
      [os_freebsd,
       [package => 'pcsc-lite']],
      [like_debian,
       [package => ['bzip2', 'libpcsclite-dev', 'pkg-config | pkgconf']]]], # bzip2 needed for extraction

     [cpanmod => ['ClamAV::Client', 'File::Scan::ClamAV'],
      [os_freebsd,
       [package => 'clamav']], # additionally freshclam has to be run at least once, and the clamav-clamd service has to be started
      [like_debian,
       [package => ['clamav-daemon', 'clamav-data']]]],

     [cpanmod => 'Comedi::Lib',
      # Not available for FreeBSD or CentOS7
      [like_debian,
       [package => 'libcomedi-dev']],
      [like_fedora,
       [linuxdistro => 'fedora',
	[package => 'comedilib-devel']]], # but still does not build
     ],

     [cpanmod => 'CommonMark',
      [os_freebsd,
       [package => 'cmark']],
     ],

     [cpanmod => 'Compress::LZMA::Simple',
      [os_freebsd,
       [package => 'lzmalib']], # warning: installing this package would cause subsequent failures in the Compress::Raw::Lzma test suite!
     ],

     [cpanmod => 'Compress::Raw::Lzma',
      [os_openbsd,
       [package => 'xz']],
      [like_debian,
       [package => 'liblzma-dev']],
      [os_darwin,
       [package => 'xz']],
     ],

     # Try also the patches listed in
     # https://rt.cpan.org/Ticket/Display.html?id=86115
     # (or the corresponding srezic-cpan-distroprefs file)
     [cpanmod => 'Compress::LZO',
      [os_freebsd,
       [package => 'lzo2']],
      [like_debian,
       [package => 'liblzo2-dev']],
      [like_fedora,
       [package => 'lzo-devel']],
      [os_darwin,
       [package => 'lzo']],
     ],

     [cpanmod => 'Compress::Zstd',
      [os_freebsd,
       [package => 'gmake']],
     ],

     [cpanmod => 'Config::Augeas',
      [os_freebsd,
       [package => ['augeas', 'pkgconf']]],
      [like_debian,
       # but the wheezy version is too old, module wants 1.0.0, wheezy has 0.10.0
       [package => ['libaugeas-dev', 'pkg-config | pkgconf']]],
      [like_fedora,
       [package => 'augeas-devel']],
      [os_darwin,
       [package => 'augeas']],
     ],

     [cpanmod => 'Config::UCL',
      [os_freebsd,
       [package => 'libucl']],
      ## libucl @ debian+fedora is probably something different
      #[like_debian,
      # [package => 'libucl-dev']],
      #[like_fedora,
      # [linuxdistro => 'fedora',
      #	[package => 'libucl-devel']]],
     ],

     [cpanmod => 'Convert::Recode',
      [os_freebsd,
       [package => 'recode']],
      [os_openbsd,
       [package => 'recode']],
      [like_debian,
       [package => 'recode']],
      [like_fedora,
       [package => 'recode']],
     ],

     [cpanmod => 'CORBA::ORBit',
      #[os_freebsd,
      # [package => 'ORBit']], # does not exist anymore, just ORBit2
      [like_fedora,
       [package => [qw(ORBit-devel libIDL-devel)]]
       # XXX still does not work, at least on CentOS6
       # either -I/usr/include/libIDL-1.0 or libIDL-2.0 has
       # to be specified, but not possible in the standard
       # Makefile.PL
      ],
     ],

     [cpanmod => 'Couchbase',
      [os_freebsd,
       [package => 'libcouchbase']],
      ## Requires also libcouchbase/api3.h which does not seem to exist for fedora
      #[like_fedora,
      # [linuxdistro => 'fedora', # not available for centos7, only for fedora36
      #	[package => 'libcouchbase-devel']]],
     ],

     [cpanmod => 'Crypt::Cracklib',
      [os_freebsd,
       [package => 'cracklib']],
      [like_debian,
       [package => 'libcrack2-dev']],
      [like_fedora,
       [package => 'cracklib-devel']],
     ],

     [cpanmod => [qw(Crypt::DH::GMP Math::GMPq Math::GMPz Math::BigInt::GMP)],
      [os_freebsd,
       [package => 'gmp']],
      [os_openbsd,
       [package => 'gmp']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'libgmp3-dev']],
       [package => 'libgmp-dev']],
      [like_fedora,
       [package => 'gmp-devel']],
      [os_darwin,
       [package => 'gmp']],
     ],

     [cpanmod => 'Crypt::GCrypt',
      [os_freebsd,
       # Does not work, see the patches in the p5-Crypt-GCrypt port
       [package => 'libgcrypt']],
      [like_debian,
       # Neither libgcrypt11 nor libgcrypt20 seem to work.
       [package => 'libgcrypt11-dev']]],

     [cpanmod => 'Crypt::HC128',
      [os_freebsd,
       [package => 'wolfssl']],
      [like_debian,
       [linuxdistrocodename => 'xenial',
	[package => 'libwolfssl-dev']]],
     ],

     [cpanmod => ['Crypt::MCrypt', 'Mcrypt'],
      [os_freebsd,
       [package => 'libmcrypt']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => []], # N/A in squeeze
       ],
       [package => 'libmcrypt-dev']],
      [like_fedora,
       [package => [qw(libmcrypt-devel libtool-ltdl-devel)]]],
     ],

     [cpanmod => ['Crypt::OpenSSL::DSA', 'Crypt::OpenSSL::PKCS12', 'Crypt::OpenSSL::Random', 'Crypt::OpenSSL::RSA', 'Crypt::OpenSSL::X509', 'IO::Socket::SSL'],
      # freebsd has all libssl in the base system
      [like_debian,
       [package => ['libssl-dev', 'zlib1g-dev']]],
      [like_fedora,
       [package => 'openssl-devel']],
      [os_windows,
       [package => 'openssl.light']], # XXX create openssl.dev
     ],

     [cpanmod => 'Crypt::OpenSSL::X509',
      [os_darwin,
       [package => 'openssl']]],

     [cpanmod => 'Crypt::OTR',
      [os_freebsd,
       [package => 'libotr']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => 'libotr2-dev']],
       [package => 'libotr5-dev']]],

     [cpanmod => 'Crypt::secp256k1',
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise trusty xenial)],
	[package => []], # not available before stretch
       ],
       [package => 'libsecp256k1-dev']],
     ],

     # XXX may be removed if Crypt::secp256k1 got its first stable release
     [cpandist => qr{^Crypt-secp256k1-\d},
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise trusty xenial)],
	[package => []], # not available before stretch
       ],
       [package => 'libsecp256k1-dev']],
     ],

     [cpanmod => 'Crypt::LibSCEP',
      [os_freebsd,
       [osvers => {'>=', 11},
	[package => 'libscep']],
       [package => []]],
     ],

     [cpanmod => 'Crypt::Sodium',
      [os_freebsd,
       [package => 'libsodium']],
      [os_openbsd,
      # does not work
       [package => 'libsodium']],
      [os_openbsd,
       [package => 'libsodium']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => []], # not available before jessie
       ],
       [package => 'libsodium-dev']],
      [like_fedora,
       [package => 'libsodium-devel']],
      [os_darwin,
       [package => 'libsodium']],
     ],

     [cpanmod => 'Crypt::U2F::Server',
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie)],
	[package => []], # not available before xenial and stretch
       ],
       [package => 'libu2f-server-dev']],
      [os_darwin,
       [package => 'libu2f-server']],
      [linuxdistro => 'fedora', # not available for CentOS6 or 7 or rockylinux 9
       [package => 'libu2f-server-devel']],
     ],

     [cpanmod => 'CSS::Croco',
      [os_freebsd,
       [package => ['libcroco', 'pkgconf']]],
      [like_debian,
       [package => 'libcroco3-dev']],
      [like_fedora,
       [package => 'libcroco-devel']],
     ],

     [cpanmod => 'Curses',
      # ncurses.h is included in FreeBSD base install
      [like_debian,
       [package => 'libncurses5-dev']],
      [like_fedora,
       [package => 'ncurses-devel']],
     ],

     [cpanmod => 'Curses::UI::Mousehandler::GPM',
      [like_debian,
       [package => ['libgpm-dev', 'libncurses5-dev']]],
      [like_fedora,
       [package => ['gpm-devel']]],
     ],

     [cpanmod => 'Database::Cassandra::Client',
      [os_freebsd,
       # but does not work, and neither does cassandra2
       [package => 'cassandra']],
      # cassandra package not available on debian
     ],

     [cpanmod => ['Data::UUID::LibUUID', 'UUID'],
      [os_freebsd,
       [package => 'libuuid']],
      [os_openbsd,
       [package => 'ossp-uuid']],
      [like_debian,
       [package => 'uuid-dev']],
      [like_fedora,
       [package => 'libuuid-devel']],
     ],

     [cpanmod => 'Date::LibICal',
      [os_freebsd,
       [package => 'libical']],
      [like_debian,
       [package => 'libical-dev']],
      [like_fedora,
       [package => 'libical-devel']],
     ],

     [cpanmod => 'DateLocale',
      [os_freebsd,
       [package => 'gettext-tools']],
      # XXX what about debian?
     ],

     [cpanmod => ['DateTime::Astro', 'Math::MPFR'],
      [os_freebsd,
       [package => 'mpfr']],
      [like_debian,
       [package => 'libmpfr-dev']],
      [like_fedora,
       [package => 'mpfr-devel']],
      [os_darwin,
       [package => 'mpfr']],
     ],

     [cpanmod => 'DB_File',
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'libdb4.8-dev']],
       [linuxdistrocodename => ['wheezy', 'precise'],
	[package => 'libdb5.1-dev']],
       [package => 'libdb5.3-dev']], # e.g. jessie, stretch, trusty, xenial, yakkety, zesty
      # FreeBSD and MacOSX have libdb in the base system
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^6\.},
	package => 'db4-devel'],
       [package => 'libdb-devel'],
      ],
     ],

     [cpanmod => 'DBD::Firebird',
      [os_freebsd,
       [package => 'firebird40-server | firebird30-server | firebird25-server']],
      [os_dragonfly,
       [package => 'firebird40-server | firebird30-server | firebird25-server']],
      [like_debian,
       [before_debian_stretch,
	[package => 'firebird-dev']],
       [package => [qw(firebird-dev firebird3.0-server-core)]] # for stretch (and newer?)
      ],
      [like_fedora,
       [package => 'firebird-devel']],
     ],

     [cpanmod => 'DBD::MariaDB',
      [os_freebsd,
       [package => 'mysql80-client']], # same like used in https://www.freshports.org/databases/p5-DBD-MariaDB/
      [os_openbsd,
       [package => 'mariadb-connector-c']],
      [like_debian,
       [package => 'libmariadb-dev | libmariadbclient-dev | libmariadbd-dev | libmysqlclient-dev | libmysqld-dev']], # see https://metacpan.org/dist/DBD-MariaDB/view/lib/DBD/MariaDB/INSTALL.pod#PREREQUISITES
      [like_fedora,
       [package => 'mariadb-devel | mariadb-embedded-devel | mysql-devel | mysql-embedded-devel']], # see https://metacpan.org/dist/DBD-MariaDB/view/lib/DBD/MariaDB/INSTALL.pod#PREREQUISITES
      [os_darwin,
       [package => 'mysql-client | mysql-connector-c | mysql']],
      [os_windows,
       [package => 'mariadb-cli']],
     ],

     [cpanmod => 'DBD::mysql',
      [os_freebsd,
       [package => 'mysql80-client | mysql57-client | mysql56-client | mysql55-client | mariadb103-client | mariadb102-client | mariadb101-client | mariadb100-client | mariadb55-client | percona56-client | percona55-client | mysql-connector-c']],
      [os_dragonfly,
       [package => 'mariadb101-client | mariadb100-client | mariadb55-client-5.5.58']],
      [os_openbsd,
       [package => 'mariadb-client']],
      [like_debian,
       [before_debian_stretch,
	[package => 'libmysqlclient-dev']],
       [package => 'default-libmysqlclient-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => qr{^6\.},
	[package => 'mysql-devel']],
       [package => 'mariadb-devel']],
      [os_darwin,
       [package => 'mysql-connector-c | mysql']],
     ],

     [cpanmod => 'DBD::ODBC',
      [os_freebsd,
       [package => 'unixODBC']],
      [os_dragonfly,
       [package => 'unixODBC']],
      [like_debian,
       [package => 'unixodbc-dev']],
      [like_fedora,
       [package => 'libiodbc-devel']], # but building does not work out of the box, Makefile.PL needs patching
      [os_darwin,
       [package => 'unixodbc']],
     ],

     [cpanmod => 'DBD::Pg',
      [os_freebsd,
       [package => 'postgresql12-client | postgresql11-client | postgresql10-client | postgresql96-client | postgresql95-client | postgresql94-client | postgresql93-client']],
      [os_dragonfly,
       [package => 'postgresql10-server | postgresql96-server | postgresql94-server | postgresql93-server | postgresql92-server']],
      [os_openbsd,
       [package => 'postgresql-server']],
      [like_debian,
       [package => 'libpq-dev']],
      [like_fedora,
       [package => [qw(postgresql postgresql-devel)]]],
      [os_darwin,
       [package => 'postgresql']],
     ],

     [cpanmod => 'Deliantra::Client',
      [os_freebsd,
       [package => ['sdl2', 'sdl2_image', 'sdl2_mixer']]],
      [like_debian,
       [package => ['libsdl1.2-dev', 'libsdl-image1.2-dev', 'libsdl-mixer1.2-dev', 'libglib2.0-dev']]]],

     [cpanmod => 'Devel::IPerl',
      [like_debian,
       [package => [qw(libzmq3-dev jupyter-console jupyter-notebook)]]], # as documented in https://metacpan.org/release/ZMUGHAL/Devel-IPerl-0.012/source/README.md
     ],

     [cpanmod => 'Devel::Jemallctl',
      [like_debian,
       [package => 'libjemalloc-dev']],
      [like_fedora,
       [package => 'jemalloc-devel']],
      [os_darwin,
       [package => 'jemalloc']],
     ],

     [cpanmod => 'Devel::Valgrind::Client',
      [os_freebsd,
       [package => 'valgrind']], # untested
      [like_debian,
       [package => 'valgrind']], # but compilation errors
     ],

     [cpanmod => 'Device::Cdio',
      [os_freebsd,
       # but it's too old, even on freebsd11 (1.1 needed, 0.94 installed)
       [package => 'libcdio']],
      [like_debian,
       # but still does not work
       [package => ['libcdio-dev', 'libiso9660-dev']]],
      [os_darwin,
       [package => 'libcdio']],
     ],

     [cpanmod => 'Device::Serdisp',
      [os_freebsd,
       [package => 'serdisplib']], # but segfault in tests
      # no package for debian
     ],

     [cpanmod => 'Device::USB',
      [like_debian,
       [package => 'libusb-dev']],
      [like_fedora,
	[linuxdistro => 'fedora',
	 linuxdistroversion => {'>=', 39}, # what about older versions?
	 package => 'libusb1-devel'],
       [package => 'libusb-devel']],
     ],

     [cpanmod => 'Device::Velleman::K8055::libk8055',
      [os_freebsd,
       [package => 'libk8055']],
      # not available on debian
     ],

     [cpanmod => 'DLM::Client',
      # libdlm does not seem to exist on FreeBSD
      [like_debian,
       [package => 'libdlm-dev']],
      [like_fedora,
       [package => 'dlm-devel']],
     ],

     [cpanmod => 'DNS::LDNS',
      [os_freebsd,
       [package => 'ldns']],
      [os_dragonfly,
       [package => 'ldns']],
      [like_debian,
       [package => 'libldns-dev']],
      [like_fedora,
       [package => 'ldns-devel']],
      # additionally needs to be patched, see https://github.com/eserte/srezic-cpan-distroprefs/blob/master/DNS-LDNS.yml
      [os_darwin,
       [package => 'ldns']]],

     [cpanmod => ['DNS::Unbound', 'Net::DNS::Resolver::Unbound'],
     #[cpandist => qr{^DNS-Unbound-\d},
      [os_freebsd,
       [package => 'unbound']], # build problems with DNS::Unbound: port's pkg-config file references ssl & crypto, but these are already in base system
      [like_debian,
       [package => 'libunbound-dev']],
      [like_fedora,
       [package => 'unbound-devel']],
     ],

     [cpanmod => 'DVD::Read',
      [os_freebsd,
       [package => 'libdvdread']],
      [like_debian,
       [package => 'libdvdread-dev']],
      [like_fedora,
       [package => 'libdvdread-devel']],
     ],

     [cpanmod => 'EFL',
      [os_freebsd,
       # build is not successful anyway (Evas.h cannot be found), additionally the prereqs install also gcc on a freebsd10 system
       [package => ['evas-core', 'elementary']]],
      [like_debian,
       # here too: build is not successful anyway (Evas.h cannot be found)
       [package => ['libevas-dev', 'libelementary-dev']]]],

     [cpanmod => 'Encode::TECkit',
      [os_freebsd,
       [package => 'teckit']],
      # no package for Debian (jessie, stretch) and CentOS7
     ],

     [cpanmod => 'Erlang::Interface',
      [like_debian,
       [package => 'erlang-dev']],
     ],

     [cpanmod => ['EV::ADNS', 'Net::ADNS'],
      [os_freebsd,
       [package => 'adns']],
      [like_debian,
       [package => 'libadns1-dev']],
      [os_darwin,
       [package => 'adns']],
      [like_fedora,
       [linuxdistro => 'fedora', # not available for CentOS6 or 7
	[package => 'adns-devel']]],
     ],

     [cpanmod => 'Event::Lib',
      [os_freebsd,
       [package => 'libevent2']],
      [like_debian,
       [package => 'libevent-dev']]],

     [cpanmod => 'ExtUtils::CppGuess',
      # FreeBSD has c++ in the base system
      [like_debian,
       [package => 'g++']]],

     [cpanmod => 'ExtUtils::F77',
      # XXX TBD FreeBSD: provided by gcc, which is in the base system for osvers < 10, and has to be installed separately for osvers >= 10
      [like_debian,
       [package => 'gfortran']],
      [like_fedora,
       [package => 'gcc-gfortran']],
      # XXX TBD MacOSX: "GNU Fortran is now provided as part of GCC, and can be installed with: brew install gcc"
     ],

     [cpanmod => 'ExtUtils::PkgConfig',
      [os_freebsd,
       [package => 'pkgconf']],
      [like_debian,
       [package => 'pkg-config | pkgconf']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 8},
	[package => 'pkgconfig']],
       [linuxdistro => 'fedora', linuxdistroversion => {'<', 31},
	[package => 'pkgconfig']],
       [package => 'pkgconf-pkg-config']],
      [os_darwin,
       [package => 'pkg-config']],
     ],

     [cpanmod => 'FFI::Platypus::Lang::Pascal',
      [like_debian,
       [package => 'fp-compiler']],
     ],

     [cpanmod => 'File::ExtAttr',
      [like_debian,
       [package => 'libattr1-dev']],
      [like_fedora,
       [package => 'libattr-devel']],
      # no special packages needed on freebsd and macosx
     ],

     [cpanmod => 'File::LibMagic',
      # XXX what about freebsd?
      [like_debian,
       [package => 'libmagic-dev']],
      [like_fedora,
       [package => 'file-devel']],
      [os_darwin,
       [package => 'libmagic']]],

     [cpanmod => 'File::MimeInfo',
      [os_freebsd,
       [# actually, this module installs without the package, but
        # depending modules like IO-All which really use it may fail
	[package => 'shared-mime-info']]]],

     [cpanmod => 'File::Rdiff',
      [os_freebsd,
       [package => 'librsync2 | librsync']],
      [like_debian,
       [package => 'librsync-dev']],
      [like_fedora,
       [package => 'librsync-devel']], # but compilation failures on CentOS7
     ],

     [cpanmod => 'Filesys::SmbClient',
      ## XXX does not work out-of-the box, maybe needs some -I and -L settings
      #[os_freebsd,
      # [package => 'samba416 | samba413 | samba41 | samba4 | samba-libsmbclient']],
      [like_debian,
       [package => 'libsmbclient-dev']],
      ## XXX does not seem to build, neither with centos7 nor with fedora39
      #[like_fedora,
      # [package => 'libsmbclient-devel']],
     ],

     [cpanmod => 'Finance::MICR::GOCR::Check',
      [package => 'gocr']],

     [cpanmod => 'Finance::TA',
      [os_freebsd,
       [package => 'ta-lib']]], # alternative would be Alien::TALib

     [cpanmod => 'Firefox::Marionette',
      [os_freebsd,
       [package => [ 'firefox', 'xorg-vfbserver', 'xauth' ]]],
      [os_openbsd,
       [package => [ 'firefox' ]]],
      [like_debian,
       [linuxdistro => 'ubuntu',
	[package => [qw(firefox xvfb xauth)]]], # there's no firefox-esr for Ubuntu
       [package => [ 'firefox-esr', 'xvfb', 'xauth' ]]],
      [like_fedora,
       [package => [ 'firefox', 'xorg-x11-server-Xvfb', 'xorg-x11-xauth' ]]],
      [os_windows,
       [package => [ 'firefox' ]]],
     ],

     [cpanmod => ['FTDI::D2XX', 'Device::FTDI'],
      # neither libftdi nor libftdi1 seem to work on FreeBSD
      [like_debian,
       [package => 'libftdi-dev']]],

     [cpanmod => 'Fuse',
      # Fuse.pm does not work on freebsd
      [like_debian,
       [package => 'libfuse-dev']],
      [like_fedora,
       [package => 'fuse-devel']],
     ],

     [cpanmod => 'Games::Chipmunk',
      [os_freebsd,
       [package => 'ChipmunkPhysics']],
      [like_debian,
       [package => 'chipmunk-dev']],
     ],

     [cpanmod => 'Games::Irrlicht',
      [os_freebsd,
       [package => 'irrlicht']], # but does not build
      [like_debian,
       [package => 'libirrlicht-dev']], # but does not build
     ],

     [cpanmod => 'Games::Poker::HandEvaluator',
      [os_freebsd,
       [package => 'poker-eval']], # but does not build out of the box
      [like_debian,
       [package => 'libpoker-eval-dev']], # but does not build out of the box
     ],

     [cpanmod => 'GCCJIT',
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise)],
	[package => []]], # N/A in older Debian+Ubuntu versions
       [linuxdistrocodename => [qw(xenial)],
	[package => 'libgccjit-5-dev']],
       [linuxdistrocodename => [qw(stretch)],
	[package => 'libgccjit-6-dev']],
       [linuxdistrocodename => [qw(bionic)],
	[package => 'libgccjit-7-dev']], # use matching with current gcc, don't use libgccjit-8-dev | libgccjit-6-dev | libgccjit-5-dev
       [linuxdistrocodename => [qw(buster)],
	[package => 'libgccjit-8-dev']], # use matching with current gcc, don't use libgccjit-7-dev | libgccjit-6-dev
      ],
      [like_fedora,
       [linuxdistro => 'fedora', # not available for CentOS6 or 7
	[package => 'libgccjit-devel']]],
     ],

     [cpanmod => 'GD',
      [os_freebsd,
       [package => 'libgd']],
      [os_dragonfly,
       [package => 'libgd']],
      [os_openbsd,
       [package => 'gd']],
      [like_debian,
       [linuxdistrocodename => ['precise', 'wheezy'],
	[package => 'libgd2-noxpm-dev | libgd2-xpm-dev']],
       [package => 'libgd-dev']],
      [like_fedora,
       [package => 'gd-devel']],
      [like_alpine,
       [package => 'gd-dev']],
      [os_darwin,
       [package => 'gd']],
     ],

     [cpanmod => 'Gearman::XS',
      [os_freebsd,
       [package => 'gearmand-devel'], # untested; not for small disks, needs boost-libs
      ],
      [like_debian,
       [package => 'libgearman-dev']],
      [like_fedora,
       [package => 'libgearman-devel']],
     ],

     [cpanmod => 'Geo::Hex::V3::XS',
      [package => 'cmake']],

     [cpanmod => 'Geo::Proj4',
      [os_freebsd,
       [package => 'proj']],
      [like_debian,
       [package => ['libproj-dev', 'proj-bin']]],
      [like_fedora,
       [package => ['proj-devel', 'proj']]],
      [os_darwin,
       [package => 'proj']],
     ],

     [cpanmod => 'Geo::Shapelib',
      [os_freebsd,
       [package => 'shapelib']],
      [like_debian,
       [package => 'libshp-dev']],
      [like_fedora,
       [package => 'shapelib-devel']],
     ],

     [cpanmod => ['Gimp', 'Alien::Gimp'],
      [os_freebsd,
       [package => 'gimp-app']],
      [like_debian,
       [package => 'libgimp2.0-dev'], # 90 MB for package + deps
      ]],

     [cpanmod => 'GitDDL::Migrator',
      # XXX freebsd?
      [like_debian,
       [package => ['mysql-server-5.7 | mysql-server-5.5']], # possible alternative: mariadb-server-10.0; mysql-server-core-5.5 is not enough as resolveip is usually required
      ]],

     [cpanmod => 'Git::Raw',
      [os_freebsd,
       [package => 'libssh2']],
      [like_debian,
       [package => 'libssh2-1-dev']],
      # libgit2 is already bundled with Git::Raw
     ],

     [cpanmod => 'Git::XS',
      [os_freebsd,
       [package => 'libgit2']],
      [os_openbsd,
       [package => 'libgit2']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => []]], # N/A
       [package => 'libgit2-dev']],
      [like_fedora,
       [package => 'libgit2-devel']],
     ],

     [cpanmod => 'Glib',
      [like_debian,
       [package => 'libglib2.0-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => []]],
       [package => 'gobject-introspection-devel']],
      [os_darwin,
       [package => 'glib']],
     ],

     [cpanmod => 'Glib::JSON',
      [os_freebsd,
       [package => 'json-glib']],
      [like_debian,
       [package => 'libjson-glib-dev']],
      [like_fedora,
       [package => 'json-glib-devel']],
      [os_darwin,
       [package => 'json-glib']],
     ],

     [cpanmod => 'Glib::Object::Introspection',
      [os_freebsd,
       [package => 'gobject-introspection']],
      [os_openbsd,
       [package => 'gobject-introspection']],
      [like_debian,
       [package => 'libgirepository1.0-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => []]],
       [package => 'gobject-introspection-devel']],
      [os_darwin,
       [package => [qw(gobject-introspection libffi)]]],
     ],

     [cpanmod => 'Gnome2',
      [os_freebsd,
       [package => 'libgnomeui']],
      [like_debian,
       [package => 'libgnomeui-dev']]],

     [cpanmod => 'Gnome2::Canvas',
      [os_freebsd,
       [package => 'libgnomecanvas']],
      [like_debian,
       [package => 'libgnomecanvas2-dev']],
      [like_fedora,
       [package => 'libgnomecanvas-devel']],
     ],

     [cpanmod => 'Gnome2::GConf',
      [os_freebsd,
       [package => 'gconf2']],
      [like_debian,
       [package => 'libgconf2-dev']],
      [like_fedora,
       [package => 'GConf2-devel']],
     ],

     [cpanmod => 'Gnome2::Print',
      [os_freebsd,
       [package => 'libgnomeprintui']],
      [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
       [package => 'libgnomeprintui22-devel']],
     ],

     [cpanmod => 'Gnome2::Wnck',
      [os_freebsd,
       [package => 'libwnck']],
      [like_debian,
       [package => 'libwnck-dev']],
      [like_fedora,
       [package => 'libwnck-devel']],
     ],

     [cpanmod => ['Gnome2::VFS', 'VFS::Gnome'],
      [os_freebsd,
       [package => 'gnome-vfs']],
      [like_debian,
       [package => 'libgnomevfs2-dev']]],

     [cpanmod => 'Gnome::Sound',
      [like_debian,
       [package => 'libgnome2-dev']], # does not work, module does not look into /usr/include/libgnome-2.0/
     ],

     [cpanmod => ['GnuPG', 'Module::Signature'],
      [os_freebsd,
       [package => 'gnupg1'] #  XXX what about gnupg (version 2)?
      ],
      [os_dragonfly,
       [package => 'gnupg']],
      [os_openbsd,
       [package => 'gnupg']],
      [like_debian,
       [package => 'gnupg']],
      [like_fedora,
       [package => 'gnupg2']],
     ],

     [cpanmod => 'GnuPG::Interface',
      [os_freebsd,
       [package => 'gnupg1'] #  XXX what about gnupg (version 2)?
      ],
      [os_dragonfly,
       [package => 'gnupg']],
      [os_openbsd,
       [package => 'gnupg']],
      [like_debian,
       [package => 'gnupg']],
      [like_fedora,
       [package => 'gnupg']], # does not work with gnupg2
     ],

     [cpanmod => 'Goo::Canvas',
      [os_freebsd,
       [package => 'goocanvas']],
      [like_debian,
       [package => 'libgoocanvas-dev']],
      [like_fedora,
       [package => 'goocanvas2']],
     ],

     [cpanmod => 'GooCanvas2',
      [os_freebsd,
       [package => 'goocanvas2']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie)], # not available before xenial/stretch
	[package => []]],
       [package => 'gir1.2-goocanvas-2.0']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => qr{^6\.},
	[package => []]],
       [package => 'goocanvas2-devel']],
      [os_darwin,
       [package => 'goocanvas']], # untested
     ],

     [cpanmod => 'Google::ProtocolBuffers::Dynamic',
      [os_freebsd,
       [package => 'protobuf']],
      [like_debian,
       [package => 'libprotoc-dev']],
      [like_fedora,
       [package => 'protobuf-c-devel']],
     ],

     [cpanmod => ['Graphics::GnuplotIF', 'Gnuplot::Simple', 'Chart::Gnuplot'],
      [package => 'gnuplot']],

     [cpanmod => 'Graph::Nauty',
      [os_freebsd,
       [package => []]], # there is a nauty package, but this seems to be something different
      [like_debian,
       [before_ubuntu_trusty,
	[package => []]],
       [package => 'libnauty2-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	[package => []]],
       [package => 'libnauty-devel']],
      [os_darwin,
       [package => 'nauty']]
     ],

     [cpanmod => 'Graphics::Plotter',
      [os_freebsd,
       [package => 'plotutils']],
      [like_debian,
       [package => 'libplot-dev']],
      [like_fedora,
       [package => 'plotutils-devel']],
     ],

     [cpanmod => ['Graphics::PLplot', 'PDL::Graphics::PLplot'],
      [os_freebsd,
       [package => 'plplot']],
      [like_debian,
       [package => 'libplplot-dev']],
      [like_fedora,
       [package => 'plplot-devel']],
     ],

     [cpanmod => ['Graphics::SANE', 'Sane', 'Image::Sane'],
      [os_freebsd,
       [package => 'sane-backends']],
      [like_debian,
       [package => 'libsane-dev']],
      [like_fedora,
       [package => 'sane-backends-devel']],
      [os_darwin,
       [package => 'sane-backends']],
     ],

     [cpanmod => ['GraphViz', 'GraphViz2', 'GraphViz2::Marpa'],
      # package named the same in freebsd, debian and macosx/homebrew, maybe everywhere?
      [package => 'graphviz']],

     [cpanmod => 'GSM::Gnokii',
      # XXX what about freebsd?
      [like_debian,
       [package => 'libgnokii-dev']]],

     [cpanmod => 'Gtk2',
      # XXX freebsd?
      [like_debian,
       [package => 'libgtk2.0-dev']],
      [like_fedora,
       [package => 'gtk2-devel']],
     ],

     [cpanmod => 'Gtk2::AppIndicator',
      # no package for freebsd or centos7
      [like_debian,
       [package => 'libappindicator-dev']],
     ],

     [cpanmod=> 'Gtk2::CV',
      [linuxdistro => 'fedora',
       [package => 'perlmulticore-devel']],
     ],

     [cpanmod => 'Gtk2::GladeXML',
      [os_freebsd,
       [package => 'libglade2']],
      [like_debian,
       [package => 'libglade2-dev']],
      [like_fedora,
       [package => 'libglade2-devel']],
     ],

     [cpanmod => 'Gtk2::GLExt',
      # But does not build anywhere...
      [os_freebsd,
       [package => 'gtkglext']],
      [like_debian,
       [package => 'libgtkglext1-dev']],
      [like_fedora,
       [package => 'gtkglext-devel']],
     ],

     [cpanmod => 'Gtk2::ImageView',
      [os_freebsd,
       [package => 'gtkimageview']],
      [like_debian,
       [package => 'libgtkimageview-dev']]],

     [cpanmod => ['Gtk2::Notify', 'Gtk3::Notify'], # but compilation errors, see https://rt.cpan.org/Ticket/Display.html?id=67467
      [os_freebsd,
       [package => 'libnotify']],
      [like_debian,
       [package => 'libnotify-dev']],
      [like_fedora,
       [package => 'libnotify-devel']],
     ],

     [cpanmod => 'Gtk2::Spell',
      [os_freebsd,
       [package => 'gtkspell']],
      [like_debian,
       [package => 'libgtkspell-dev']],
      [like_fedora,
       [package => 'gtkspell-devel']],
     ],

     [cpanmod => 'Gtk2::Unique',
      [os_freebsd,
       [package => 'unique']],
      [like_debian,
       [package => 'libunique-dev']],
      [like_fedora,
       [package => 'unique-devel']],
     ],

     [cpanmod => 'Gtk3',
      [os_freebsd,
       # additionally dbus has to be enabled and started
       [package => ['gtk3', 'dbus']]],
      [like_debian,
       [package => 'libgtk-3-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => []]],
       [package => 'gtk3-devel']],
     ],

     [cpanmod => 'Gtk3::SourceView',
      [os_freebsd,
       [package => 'gtksourceview3']],
      [like_debian,
       [package => 'libgtksourceview-3.0-dev']],
      [like_fedora,
       [package => 'gtksourceview3-devel']],
     ],

     [cpanmod => 'Gtk3::WebKit',
      [os_freebsd,
       [osvers => {'<', 11},
	[package => 'webkit-gtk3']],
       [package => []]], # does not exist in newer freebsd versions
      [like_debian,
       [before_debian_buster, # only available until ubuntu:bionic
	[package => 'libwebkitgtk-3.0-dev']],
       [package => []]],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^[7]\.}, # exists for centos 7, does not exist for fedora 36
	package => 'webkitgtk3-devel'],
       [package => []]],
     ],

     [cpanmod => 'Gtk3::WebKit2',
      [like_debian,
       [before_ubuntu_trusty, # at least not available in debian/wheezy
	[package => []]],
       [before_ubuntu_noble,
	[package => 'libwebkit2gtk-4.0-dev']],
       [package => 'libwebkit2gtk-4.1-dev']], # but does not work with Gtk3-WebKit2-0.013: Typelib file for namespace 'WebKit2', version '4.0' not found
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^[67]\.},
	package => []], # N/A for centos6+7
       [package => 'webkit2gtk3-devel']],
     ],

     [cpanmod => 'GTop',
      [os_freebsd,
       [package => 'libgtop']],
      [like_debian,
       [package => 'libgtop2-dev']],
      [os_darwin,
       [package => 'libgtop']],
     ],

     [cpanmod => 'Heimdal::Kadm5',
      [os_freebsd,
       [package => 'heimdal']],
      [like_debian,
       # conflicts with libkrb5-dev
       [package => 'heimdal-dev']],
      [like_fedora,
       # but does not build
       [package => 'heimdal-devel']],
     ],

     [cpanmod => 'Hiredis::Raw',
      [os_freebsd,
       [package => 'hiredis']],
      [like_debian,
       [package => 'libhiredis-dev']]],

     [cpanmod => 'Hobocamp',
      # XXX what about freebsd
      [like_debian,
       [package => ['dialog', 'libncursesw5-dev']]]],

     [cpanmod => 'HTML::CTPP2',
      [os_freebsd,
       [package => 'ctpp2']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => []], # not available before jessie
       ],
       [package => 'libctpp2-dev']],
      # ctpp2 not available for homebrew
     ],

     [cpanmod => 'HTML::HTMLDoc',
      [os_freebsd,
       [package => 'htmldoc']],
      [like_debian,
       [before_ubuntu_trusty,
	[package => []]], # not available in wheezy
       [package => 'htmldoc']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'>=', 8}, # not available for CentOS8
	[package => []]],
       [linuxdistro => 'rocky', # not available for rockylinux
	[package => []]],
       [linuxdistro => 'fedora', # not available for (newer) fedora
	[package => []]],
       [package => 'htmldoc']],
     ],

     [cpanmod => 'HTML::Parser',
      [os_freebsd,
       [package => []]],
      [like_debian,
       [package => 'libc6-dev']],
      [like_fedora,
       [package => 'glibc-headers']],
      [os_darwin,
       [package => []]],
     ],

     [cpanmod => 'HTTP::Webdav',
      [os_freebsd,
       [package => 'neon | neon29']], # untested
      [like_debian,
       [package => 'libneon27-dev | libneon27-gnutls-dev']], # compilation fails: ne_cookies.h: No such file or directory
      [like_fedora,
       [package => 'neon-devel']], # compilation fails: ne_cookies.h: No such file or directory
     ],

     [cpanmod => 'HTML::Tidy5',
      [os_freebsd,
       [package => 'tidy-html5']],
      [like_debian,
       [before_debian_stretch,
	[package => []]], # not available?
       [package => 'libtidy-dev']],
      [like_fedora,
       [package => 'libtidy-devel']], # but compilation fails on centos6, some test failures on centos7, fedora28 currently OK
      [os_darwin,
       [package => 'tidy-html5']], # but does not work (-L and -I needs to be adjusted, Symbol not found: _tidyBufFree)
     ],

     [cpanmod => 'HTML::Tidy',
      [os_freebsd,
       [package => 'tidyp']],
      [os_darwin,
       [package => 'tidyp']],
      # linux: Alien::Tidyp works fine, no external dependency required
     ],

     [cpanmod => 'HTTP::Soup::Gnome',
      [os_freebsd,
       [package => 'libsoup-gnome']],
      [like_debian,
       [package => 'libsoup-gnome2.4-dev']]],

     [cpanmod => 'Image::DecodeQR',
      #[os_freebsd,
      # [package => 'opencv']], # package for decodeqr missing
      [like_debian,
       [before_debian_stretch,
	[package => ['libopencv-dev', 'libdecodeqr-dev']]],
       [package => []], # not available anymore in stretch, bionic or buster, but currently available in sid for at least arm64
      ],
      #[like_fedora,
      # [package => 'opencv-devel']], # package for decodeqr missing
     ],

     [cpanmod => ['Image::ObjectDetect', 'Image::Resize::OpenCV'],
      [os_freebsd,
       [package => 'opencv']],
      [like_debian,
       [package => 'libopencv-dev']],
      [like_fedora,
       [package => 'opencv-devel']],
     ],

     [cpanmod => 'Image::GeoTIFF::Tiled',
      [os_freebsd,
       [package => ['libgeotiff', 'tiff']]],
      [like_debian,
       [package => ['libgeotiff-dev']]], # conflict between libtiff4 and libtiff5 possible
     ],

     [cpanmod => ['Image::Imlib2', 'Ithumb::XS'],
      [os_freebsd,
       [package => 'imlib2']],
      [like_debian,
       [package => 'libimlib2-dev']],
      [like_fedora,
       [package => 'imlib2-devel']],
      [os_darwin,
       [package => 'imlib2']],
     ],

     [cpanmod => 'Image::LibExif',
      [os_freebsd,
       [package => 'libexif']],
      [like_debian,
       [package => 'libexif-dev']],
      [os_darwin,
       [package => 'libexif']],
      [like_fedora,
       [package => 'libexif-devel']],
     ],

     [cpanmod => 'Image::Libpuzzle',
      [os_freebsd,
       [package => 'libpuzzle']],
      [like_debian,
       [package => 'libpuzzle-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => {'>=', 7},
	package => []], # for some reason not available for centos7 (but it is for centos6)
       [package => 'libpuzzle-devel']],
     ],

     [cpanmod => 'Image::LibRaw',
      [os_freebsd,
       [package => 'libraw']],
      [like_debian,
       [before_ubuntu_trusty, # not available in debian/wheezy
	[package => []]],
       [package => 'libraw-dev']],
      [os_darwin,
       [package => 'libraw']],
     ],

     [cpanmod => ['Image::LibRSVG', 'Gnome2::Rsvg'],
      [os_freebsd,
       [package => 'librsvg2']],
      [like_debian,
       [package => 'librsvg2-dev']],
      [like_fedora,
       [package => 'librsvg2-devel']],
      [os_darwin,
       [package => 'librsvg']],
     ],

     [cpanmod => 'Image::Magick',  # typically needs manual work
      ## XXX needs to be either ImageMagick6 or ImageMagick7 nowadays, but does not install without manual work anyway
      #[os_freebsd,
      # [package => 'ImageMagick']],
      [like_debian,
       [package => 'libmagickcore-dev']]],

     [cpanmod => 'Image::PNGwriter',
      [os_freebsd,
       [package => 'pngwriter']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'libpngwriter0-dev']],
       # not available in wheezy and later
       ]],

     [cpanmod => 'Image::Ocrad',
      [package => 'ocrad']],

     [cpanmod => 'Image::Resize::OpenCV',
      [os_freebsd,
       [package => 'opencv']],
      [like_debian,
       [package => ['libcv-dev', 'libhighgui-dev']]],
      [like_fedora,
       [package => 'opencv-devel']],
     ],

     [cpanmod => 'Image::Scale',
      [os_freebsd,
       [osvers => {'<', freebsd_new_jpeg_osvers}, [package => ['png', freebsd_old_jpeg]]],
       [package => ['png', freebsd_new_jpeg]]],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise xenial)],
	[package => [qw(libjpeg-dev libpng12-dev)]]],
       [package => [qw(libjpeg-dev libpng-dev)]],
      ],
     ],

     [cpanmod => 'Image::SubImageFind',
      # XXX what about freebsd?
      [like_debian,
       [package => ['libmagick++-dev | graphicsmagick-libmagick-dev-compat']]]],

     [cpanmod => 'Image::XFace', # compiles only for old perls
      [os_freebsd,
       [package => 'faces']],
      [like_debian,
       [package => 'libcompfaceg1-dev']],
      [like_fedora,
       [package => 'compface-devel']],
     ],

     [cpanmod => 'Imager',
      [os_freebsd,
       [osvers => {'<', freebsd_new_jpeg_osvers}, [package => [qw(freetype2 giflib png tiff), freebsd_old_jpeg]]], # in former days giflib-nox11 had to be specified
       [package => [qw(freetype2 giflib png tiff), freebsd_new_jpeg]]],
      [like_debian,
       [linuxdistrocodename => [qw(wheezy precise)],
	[package => [qw(libfreetype6-dev libgif-dev libpng12-dev libjpeg-dev), 'libtiff5-dev | libtiff4-dev']]],
       [linuxdistrocodename => [qw(jessie xenial)],
	[package => [qw(libfreetype6-dev libgif-dev libpng12-dev libjpeg-dev libtiff5-dev)]]],
       [package => [qw(libfreetype6-dev libgif-dev libpng-dev libjpeg-dev libtiff5-dev)]],
      ],
      [like_fedora,
       [package => [qw(freetype-devel giflib-devel libpng-devel libjpeg-turbo-devel libtiff-devel)]]],
      [os_darwin,
       [package => [qw(freetype giflib libpng jpeg libtiff)]]],
     ],

     [cpanmod => 'Imager::File::AVIF',
      [os_freebsd,
       [package => 'libavif']],
      [like_debian,
       [before_debian_buster,
	[package => []]],
       [linuxdistrocodename => ['focal'],
	[package => []]],
       [package => 'libavif-dev']],
      [like_fedora,
       [linuxdistro => 'centos', # not available for 7 and 8
	package => []],
       [package => 'libavif-devel']],
     ],

     [cpanmod => 'Imager::File::HEIF',
      [os_freebsd,
       [osvers => {'>=', 4, '<', 10},
	[package => []]],
       [package => 'libheif']], # but does not seem to work with freebsd 10, only with 11 and later
      [like_debian,
       [before_ubuntu_bionic,
	[package => []]],
       [package => 'libheif-dev']],
      [like_fedora,
       [linuxdistro => 'centos', # not available for 7
	package => []],
       [linuxdistro => 'fedora', linuxdistroversion => {'>=', 37}, # however, configure fails: "doesn't have a HEVC encoder"
	[package => 'libheif-devel']],
      ],
     ],

     [cpanmod => 'Imager::File::JPEG',
      [os_freebsd,
       [osvers => {'<', freebsd_new_jpeg_osvers}, [package => [freebsd_old_jpeg]]],
       [package => [freebsd_new_jpeg]]],
      [like_debian,
       [package => [qw(libjpeg-dev)]]],
      [like_fedora,
       [package => [qw(libjpeg-turbo-devel)]]],
      [os_darwin,
       [package => [qw(jpeg)]]],
     ],

     [cpanmod => 'Imager::File::WEBP',
      [os_freebsd,
       [package => 'webp']], # but tests fail with "undefined symbol: WebPFree" on older freebsd (9)
      [like_debian,
       [package => 'libwebp-dev']], # but tests fail with "undefined symbol: WebPFree" on jessie+xenial
      [like_fedora,
       [package => 'libwebp-devel']], # but test or compilation failures with centos6+7; fedora28 works
      [os_darwin,
       [package => 'webp']],
     ],

     [cpanmod => 'Imager::Font::T1',
      [os_freebsd,
       [package => 't1lib']],
      [linuxdistro => 'linuxmint',
       [package => 'libt1-dev']], # still available in Mint 17
      [like_debian,
       linuxdistrocodename => [qw(squeeze wheezy)],
       [package => 'libt1-dev']],
      # not available anymore since jessie, also not in xenial
      [like_fedora,
       [package => 't1lib-devel']],
      [os_darwin,
       #[package => 't1lib']], # but tests fail
       [package => []]], # ... and even worse: if t1lib is installed, then the Imager 1.008 test suite fails (https://rt.cpan.org/Ticket/Display.html?id=128145). So don't install it at all.
     ],

     [cpanmod => 'Imager::zxing',
      [os_freebsd,
       [package => 'zxing-cpp']],
      [like_debian,
       [package => 'libzxingcore-dev']],
      [like_fedora,
       [package => 'zxing-cpp-devel']],
     ],

     # modules just needing java and nothing else:
     [cpanmod => ['Inline::Java', 'Bio::AssemblyImprovement', 'DBD::JDBC'],
      [os_freebsd,
       [package => 'openjdk8']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'openjdk-6-jdk']],
       [linuxdistrocodename => [qw(wheezy jessie precise)],
	[package => 'openjdk-7-jdk']],
       [linuxdistrocodename => [qw(stretch xenial)],
	[package => 'openjdk-8-jdk']],
       [linuxdistrocodename => [qw(buster bionic)],
	[package => 'openjdk-11-jdk']],
      ],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => 'java-1.8.0-openjdk-devel | java-1.7.0-openjdk-devel | java-1.6.0-openjdk-devel']],
       [package => 'java-11-openjdk-devel | java-9-openjdk-devel | java-1.8.0-openjdk-devel | java-1.7.0-openjdk-devel | java-1.6.0-openjdk-devel']],
     ],

     [cpanmod => 'Inline::Lua',
      [os_freebsd,
       [package => 'lua53 | lua']],
      [like_debian,
       [package => 'liblua5.1-0-dev']],
      [like_fedora,
       [package => 'lua-devel']],
      [os_darwin,
       [package => 'lua']],
     ],

     [cpanmod => 'Inline::Perl6',
      [like_debian,
       # XXX tests fail on Ubuntu16.04;  missing on stretch
       [linuxdistrocodename => [qw(stretch xenial)],
	[package => [qw(moarvm-dev libuv1-dev libatomic-ops-dev libtommath-dev rakudo)]]]],
      [like_fedora,
       # XXX Does not work, moar.h missing
       [linuxdistro => 'centos',
	linuxdistroversion => {'<', 7}, # not available
	package => []],
       [package => 'moarvm-devel']],
     ],

     [cpanmod => 'Inline::Python',
      [os_freebsd,
       [package => 'python']],
      [like_debian,
       [package => 'python2.7-dev']],
      [like_fedora,
       [package => 'python-devel']],
      # macosx already comes with python, it seems
     ],

     [cpanmod => 'Inline::Ruby',
      [os_freebsd,
       [package => 'ruby']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => 'ruby1.8-dev']],
       [linuxdistrocodename => 'jessie',
	[package => 'ruby2.1-dev']],
       [linuxdistrocodename => [qw(xenial stretch)],
	[package => 'ruby2.3-dev']],
       [linuxdistrocodename => [qw(bionic buster)],
	[package => 'ruby2.5-dev']],
      ],
      [like_fedora,
       [package => 'ruby-devel']],
     ],

     [cpanmod => 'Inline::SLang',
      [os_freebsd,
       [package => 'libslang2']], # build error
      [like_debian,
       [package => 'libslang2-dev']], # module cannot detect lib location
      [like_fedora,
       [package => 'slang-devel']], # module cannot detect lib location
     ],

     [cpanmod => 'IO::Uring',
      [like_debian,
       [before_debian_bullseye,
	[package => []]],
       [package => 'liburing-dev']],
      [like_fedora,
       [linuxdistro => 'rocky', linuxdistroversion => qr{^8\.},
	[package => []]],
       [package => 'liburing-devel']],
     ],

     [cpanmod => 'IPC::MMA',
      [os_freebsd,
       [package => 'mm']],
      [like_debian,
       [package => 'libmm-dev']],
      [like_fedora,
       [linuxdistro => 'centos', # not available for 6 and 7
	package => []],
       [package => 'mm-devel']],
     ],

     [cpanmod => 'IPC::XPA',
      # no package for FreeBSD or CentOS7
      [like_debian,
       [package => 'libxpa-dev']],
     ],

     [cpanmod => 'IPTables::libiptc',
      # Does not work with modern Linux distributions:
      # https://rt.cpan.org/Ticket/Display.html?id=111267
      [like_debian,
       [package => 'iptables-dev']],
      [like_fedora,
       [package => 'iptables-devel']],
     ],

     [cpanmod => ['JavaScript::Lite', 'JavaScript::SpiderMonkey'],
      [os_freebsd,
       [package => 'spidermonkey24 | spidermonkey185 | spidermonkey170 | spidermonkey17',]], # needs something like INC=-I/usr/local/include/js-17.0, but does not work (tried 170 and 185); spidermonkey52 exists also, but does not work
      [like_debian,
       [before_ubuntu_bionic,
	[package => 'libmozjs185-dev']], # needs something like INC=-I/usr/include/js, but does not work
       [package => []]], # newer debians have libmozjs-52-dev, but neither ::Lite nor ::SpiderMonkey work with it
      [like_fedora,
       [package => 'js-devel']],
     ],

     [cpanmod => 'JavaScript::V8',
      [os_freebsd,
       [package => 'v8']],
      [like_debian,
       [before_debian_buster,
	[package => [qw(libv8-3.14.5 libv8-3.14-dev)]]], # but still does not work, libplatform/libplatform.h missing
       [package => 'libnode-dev']], # # libv8* not anymore in buster, see https://tracker.debian.org/news/876959/libv8-314-removed-from-testing/; https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934734 (but perl module does not pick v8.h from the installed location)
      [like_fedora,
       [package => 'v8-devel']], # but problems with Devel-CheckLib (centos7) and compilation errors (fedora), both with JavaScript-V8-0.10
      [os_darwin,
       [package => 'v8']], # but compilation errors (v8-5.0.71.33 <-> JavaScript-V8-0.07)
     ],

     [cpanmod => 'Jq',
      [os_freebsd,
       [package => 'jq']],
      [like_debian,
       [package => 'jq']],
      [like_fedora,
       [package => 'jq']],
      [os_darwin,
       [package => 'jq']],
     ],

     # XXX check whether Kafka::Librd needs an external librdkafka
     # at all, or if works with just the Alien package
     [cpanmod => ['Kafka::Librd', 'Net::Kafka'],
      [os_freebsd,
       [package => 'librdkafka']],
      [like_debian,
       [package => 'librdkafka-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	package => []], # N/A for centos6
       [package => 'librdkafka-devel']],
      [os_darwin,
       [package => 'librdkafka']],
     ],

     [cpanmod => 'Kernel::Keyring',
      # linux-only
      [like_debian,
       [package => 'libkeyutils-dev']],
      [like_fedora,
       [package => 'keyutils-libs-devel']],
     ],

     [cpanmod => 'Lab::VISA',
      # no package for freebsd
      [like_debian,
       [linuxdistrocodename => [qw(jessie xenial bionic)],
	[package => 'libvisa-dev']],
       [package => []], # not available anymore in stretch
      ],
     ],

     [cpanmod => 'Language::MzScheme',
      [os_freebsd,
       [package => 'racket']], # would need something like -I/usr/local/include/racket, but compilation still fails
      [like_debian,
       [package => ['racket', 'racket-common']]], # would need something like -I/usr/include/racket, but compilation still fails
     ],

     # XXX needs verification; maybe more latex-related modules should be listed here?
     [cpanmod => ['LaTeX::Driver', 'Template::Plugin::Latex'],
      [os_freebsd,
       [package => ['texlive-base', 'tex-formats']]],
      [like_debian,
       [package => ['texlive-latex-base', 'texlive-latex-extra']]]],

     [cpanmod => 'Lib::IXP',
      [package => 'libixp']],

     [cpanmod => 'LibJIT',
      [os_freebsd,
       [osvers => {'<', 10},
	[package => 'libjit']],
       [package => []]], # does not exist in freebsd 10 and later
      # XXX what aout debian?
     ],

     [cpanmod => 'Libssh::Session',
      [os_freebsd,
       # compiles only with freebsd 10, but not with freebsd 9
       [package => 'libssh']],
      [like_debian,
       # but does not work
       [package => 'libssh-dev']]],

     [cpanmod => 'libsoldout',
      [os_freebsd,
       [package => 'libsoldout']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise trusty)],
	[package => []], # not available before stretch/xenial
       ],
       [package => 'libsoldout1-dev']], # passes with jessie, fails with xenial
     ],

     [cpanmod => 'Lingua::Identify::CLD2',
      [os_freebsd,
       [package => 'cld2']],
      [like_debian,
       [before_ubuntu_xenial,
	[package => []]],
       [package => 'libcld2-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	package => []],
       [package => 'cld2-devel']],
     ],

     [cpanmod => 'Lingua::NATools',
      # XXX what about freebsd?
      [like_debian,
       [package => 'sqlite3']]],

     [cpanmod => 'Linux::ACL',
      [like_debian,
       [package => 'libacl1-dev']],
      [like_fedora,
       [package => 'libacl-devel']],
     ],

     [cpanmod => 'Linux::Inotify2',
      ## This inotify package is not able to run
      ## Linux::Inotify2, and if installed it
      ## casues problems with Alien-wxWidgets
      #[os_freebsd,
      # [package => 'libinotify']],
      [like_debian,
       [package => 'libc6-dev']]],

     [cpanmod => 'Linux::Netfilter::Log',
      [like_debian,
       [package => 'libnetfilter-log-dev']],
      [like_fedora,
       [package => 'libnetfilter_log-devel']],
     ],

     [cpanmod => ['Linux::Prctl', 'Linux::Capabilities'],
      [like_debian,
       [package => 'libcap-dev']],
      [like_fedora,
       [package => 'libcap-devel']],
     ],

     [cpanmod => 'Linux::Sysfs',
      [like_debian,
       [package => 'libsysfs-dev']],
      [like_fedora,
       [package => 'libsysfs-devel']]
     ],

     [cpanmod => ['Linux::Systemd::Journal', 'Log::Journald'],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy', 'jessie'],
	[package => 'libsystemd-journal-dev']],
       # sid, stretch and xenial
       [package => 'libsystemd-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^7\.},
	package => 'systemd-devel']],
     ],

     [cpanmod => 'LMDB_File',
      [os_freebsd,
       [package => 'lmdb']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => []], # not available before jessie
       ],
       [package => 'liblmdb-dev']],
      [like_fedora,
       [package => 'lmdb-devel']],
      [os_darwin,
       [package => 'lmdb']],
     ],

     [cpanmod => 'Locale::gettext', # gettext distribution
      [os_freebsd,
       [package => 'gettext']],
      # XXX what about debian?
      [os_darwin,
       [package => 'gettext']],
     ],

     [cpanmod => 'Lucene',
      [os_freebsd,
       [package => 'clucene']],
      [like_debian,
       [package => 'libclucene-dev']]],

     [cpanmod => 'Mail::DMARC::opendmarc',
      [os_freebsd,
       [package => 'opendmarc']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => []]],
       [package => 'libopendmarc-dev']],
      [like_fedora,
       [package => 'libopendmarc-devel']],
     ],

     [cpanmod => 'Mail::OpenDKIM',
      [os_freebsd,
       [package => 'opendkim']],
      [like_debian,
       [package => 'libopendkim-dev']],
      [like_fedora,
       [package => 'libopendkim-devel']],
      [os_darwin,
       [package => 'libopendkim']],
     ],

     [cpanmod => ['Math::FFTW', 'PDL::FFTW3'],
      [os_freebsd,
       [package => 'fftw3']],
      [like_debian,
       [package => 'libfftw3-dev']],
      [like_fedora,
       [package => 'fftw-devel']],
     ],

     [cpanmod => 'Math::GammaFunction',
      [os_freebsd,
       # NOTE there's an entry in .cpan/prefs/01.DISABLED.yml
       [package => 'libRmath']],
      [like_debian,
       # not for small disks, installs about ~85MB
       [package => 'r-mathlib']],
      [like_fedora,
       [package => 'libRmath-devel']],
     ],

     [cpanmod => 'Math::GAP',
      [package => 'gap'], # needs 1-1.2GB of disk space
     ],

     [cpanmod => ['Math::GSL', 'PerlGSL::DiffEq'],
      [os_freebsd,
       [package => 'gsl']],
      [like_debian,
       [package => 'libgsl0-dev']],
      [like_fedora,
       [package => 'gsl-devel']],
      [os_darwin,
       [package => 'gsl']],
     ],

     [cpanmod => 'Math::MPC',
      [os_freebsd,
       [package => 'mpc']],
      [like_debian,
       [package => 'libmpc-dev']],
      [like_fedora,
       [package => 'libmpc-devel']],
      [os_darwin,
       [package => 'libmpc']],
     ],

     [cpanmod => 'Math::MPFI',
      # XXX what about freebsd?
      [like_debian,
       [package => 'libmpfi-dev']],
      [like_fedora,
       [linuxdistro => 'rocky', # not available for rockylinux
	[package => []]],
       [package => 'mpfi-devel']],
     ],

     [cpanmod => 'Math::RngStream',
      [os_freebsd,
       [package => 'rngstreams']],
      # XXX what about debian?
     ],

     [cpanmod => 'Math::ThinPlateSpline',
      [os_freebsd,
       [package => 'boost-libs']], # untested
      [like_debian,
       [linuxdistrocodename => 'jessie',
	[package => 'libboost1.55-dev']],
       [linuxdistrocodename => 'xenial',
	[package => 'libboost1.58-dev']],
       [linuxdistrocodename => 'stretch',
	[package => 'libboost1.62-dev']],
      ],
     ],

     [cpanmod => 'MaxMind::DB::Reader::XS',
      [os_freebsd,
       [package => 'libmaxminddb']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise)],
	package => []], # N/A
       [package => 'libmaxminddb-dev']], # xenian (but too old), stretch (works)
      [like_fedora,
       [package => 'libmaxminddb-devel']], # works
     ],

     [cpanmod => 'Media::MediaInfoLib',
      [os_freebsd,
       [package => 'libmediainfo']],
      [like_debian,
       [before_ubuntu_trusty,
	[package => []]],
       [package => 'libmediainfo-dev']],
      [like_fedora,
       [package => 'libmediainfo-devel']],
     ],

     [cpanmod => 'Mhash',
      [os_freebsd,
       [package => 'mhash']],
      [like_debian,
       [package => 'libmhash-dev']],
     ],

     [cpanmod => 'MIDI::ALSA',
      [os_freebsd,
       [package => ['alsa-lib', 'alsa-utils']]],
      [like_debian,
       [package => ['libasound2-dev', 'alsa-utils']]],
     ],

     [cpanmod => 'MP3::ID3Lib',
      [os_freebsd,
       [package => 'id3lib']],
      [like_debian,
       [package => 'libid3-3.8.3-dev']],
      [like_fedora,
       [package => 'id3lib-devel']],
     ],

     [cpanmod => 'MP4::LibMP4v2',
      [os_freebsd,
       [package => 'mp4v2']],
      [like_debian,
       [before_debian_buster,
	[package => 'libmp4v2-dev']],
       [package => []]], # not available for buster
      [like_fedora,
       [package => 'libmp4v2-devel']],
     ],

     [cpanmod => 'modperl2',
      # XXX what about freebsd?
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => 'apache2-prefork-dev']],
       [package => 'apache2-dev']]],

     [cpanmod => 'MPV::Simple',
      [os_freebsd,
       [package => 'mpv']],
      [like_debian,
       [before_ubuntu_trusty,
	[package => []]],
       [package => 'libmpv-dev']],
     ],

     [cpanmod => 'MusicBrainz::DiscID',
      [os_freebsd,
       [package => 'libdiscid']],
      [like_debian,
       [package => 'libdiscid-dev']],
      [like_fedora,
       [package => 'libdiscid-devel']],
     ],

     [cpanmod => 'NanoMsg::Raw',
      [os_freebsd,
       [package => 'nanomsg']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => []], # not available before jessie
       ],
       [package => 'libnanomsg-dev']]],

     [cpanmod => 'Neo4j::Bolt',
      [like_debian,
       [before_debian_stretch,
	[package => []],
       ],
       [package => 'libneo4j-client-dev']],
     ],

     [cpanmod => 'Net::AMQP::RabbitMQ',
      # freebsd has all libssl in the base system
      [like_debian,
       [package => ['libssl-dev']]],
      [like_fedora,
       [package => ['openssl-devel']]],
      [os_windows,
       [package => 'openssl.light']], # XXX create openssl.dev
     ],

     [cpanmod => 'Net::Bluetooth',
      [like_debian,
       [package => 'libbluetooth-dev']],
      [like_fedora,
       [package => 'bluez-libs-devel']],
     ],

     [cpanmod => 'Net::CDP',
      [os_freebsd,
       [package => 'libnet']], # but build failure with Net-CDP-0.09
      [like_debian,
       [package => 'libnet1-dev']],
      [os_darwin,
       [package => 'libnet']], # but build failure with Net-CDP-0.09
     ],

     [cpanmod => 'Net::CUPS',
      [os_freebsd,
       [package => 'cups-filters']],
      [like_debian,
       [package => ['libcups2-dev', 'libcupsfilters-dev', 'libcupsimage2-dev']]]
     ],

     [cpanmod => 'Net::DBus',
      [os_freebsd,
       [package => ['dbus', 'pkgconf']]],
      [like_debian,
       [package => ['libdbus-1-dev', 'pkg-config | pkgconf']]],
      [like_fedora,
       [package => ['dbus-devel', 'pkgconfig']]],
      [os_darwin,
       [package => 'dbus']],
     ],

     [cpanmod => 'Net::DBus::GLib',
      [os_freebsd,
       [package => 'dbus-glib']],
      [like_debian,
       [package => 'libdbus-glib-1-dev']],
      [like_fedora,
       [package => 'dbus-glib-devel']],
     ],

     [cpanmod => 'Net::ESMTP',
      [os_freebsd,
       [package => 'libesmtp']],
      [like_debian,
       [package => 'libesmtp-dev']],
      [like_fedora,
       [package => 'libesmtp-devel']],
     ],

     [cpanmod => 'Net::Gadu',
      [os_freebsd,
       [package => 'pl-libgadu']],
      [like_debian,
       [package => 'libgadu-dev']],
      [linuxdistro => 'fedora', # not available for centos6+7, only for fedora28
       [package => 'libgadu-devel']],
      [os_darwin,
       [package => 'libgadu']],
     ],

     [cpanmod => 'Net::Ifstat',
      [os_freebsd,
       [package => 'ifstat']],
      [like_debian,
       [package => 'ifstat']],
      [like_fedora,
       [package => 'iproute']],
      [os_darwin,
       [package => 'ifstat']],
     ],

     [cpanmod => 'Net::Jabber::Loudmouth',
      [os_freebsd,
       [package => 'loudmouth']],
      [like_debian,
       [package => 'libloudmouth1-dev']],
      [like_fedora,
       [package => 'loudmouth-devel']],
     ],

     [cpanmod => 'Net::LDAPxs',
      [os_freebsd,
       [package => 'ldapsdk']], # but package seems to be broken and unmaintained
      [like_debian,
       [package => 'libldap2-dev']],
      [like_fedora,
       [package => 'openldap-devel']],
     ],

     [cpanmod => 'Net::Libdnet',
      [os_freebsd,
       [package => 'libdnet']],
      [like_debian,
       # but does not work without applying the patch manually - see https://rt.cpan.org/Ticket/Display.html?id=106021
       [package => 'libdumbnet-dev']],
      [like_fedora,
       [package => 'libdnet-devel']],
      [os_darwin,
       [package => 'libdnet']],
     ],

     [cpanmod => 'Net::LibIDN',
      [os_freebsd,
       [package => 'libidn']],
      [like_debian,
       [package => 'libidn11-dev']],
      [like_fedora,
       [package => 'libidn-devel']],
      [os_darwin,
       [package => 'libidn']],
     ],

     [cpanmod => 'Net::LibIDN2',
      [os_freebsd,
       [package => 'libidn2']],
      [like_debian,
       [before_ubuntu_bionic,
	[package => []]], # libidn2-0-dev exists, but is too old
       [package => 'libidn2-dev']],
      [like_fedora,
       [package => 'libidn2-devel']],
      # currently no libidn2 in homebrew
     ],

     [cpanmod => 'Net::LibLO',
      [os_freebsd,
       [package => 'liblo']],
      [like_debian,
       [package => 'liblo-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => qr{^7\.},
	[package => []]], # N/A for centos7
       [package => 'liblo-devel']],
     ],

     ## even libwebsockets-dev in Ubuntu 22.04 and debian 11 is too old for the module (4.0.20 < 4.3.0)
     #[cpanmod => 'Net::Libwebsockets',
     # [like_debian,
     #  [package => 'libwebsockets-dev']],
     #],

     [cpanmod => 'Net::NATS::Streaming::PB',
      [os_freebsd,
       [package => 'protobuf']],
      [like_debian,
       [package => 'protobuf-compiler']],
      [like_fedora,
       [package => [qw(protobuf-compiler protobuf-devel)]]],
     ],

     [cpanmod => 'Net::NfDump',
      [like_debian,
       [package => ['flex', 'byacc']]],
      # XXX what about freebsd?
     ],

     [cpanmod => 'Net::LibAsyncNS',
      # it seems there's no libasyncns for freebsd
      [like_debian,
       [package => 'libasyncns-dev']],
      [like_fedora,
       [package => 'libasyncns-devel']],
     ],

     [cpanmod => 'Net::LibNFS',
      [os_freebsd,
       [package => 'libnfs']],
      [like_debian,
       [package => 'libnfs-dev']],
      [like_fedora,
       [package => 'libnfs-devel']],
     ],

     [cpanmod => 'Net::LibNIDS',
      [os_freebsd,
       # but does not work (no libnids.so in freebsd port, just .a)
       [package => ['libnids', 'libnet', 'libpcap']]],
      [like_debian,
       [package => ['libnids-dev', 'libnet1-dev', 'libpcap0.8-dev']]],
      [like_fedora,
       [package => ['libnids-devel', 'libnet-devel', 'libpcap-devel']]],
     ],

     [cpanmod => 'Net::Pcap',
      [like_debian,
       [package => 'libpcap0.8-dev']],
      [like_fedora,
       [package => 'libpcap-devel']],
     ],

     [cpanmod => 'Net::oRTP',
      [os_freebsd,
       [package => 'ortp']],
      [like_debian,
       [package => 'libortp-dev']]],

     [cpanmod => 'Net::RabbitMQ::Client',
      [os_freebsd,
       [package => 'rabbitmq-c-devel']],
      [like_debian,
       [package => 'librabbitmq-dev']], # amqp_tcp_socket.h is provided by this package, but compilation still fails
      [like_fedora,
       [package => 'librabbitmq-devel']],
     ],

     ## conflicts with avahi-app on FreeBSD
     ## With avahi-app installed, -I/usr/local/include/avahi-compat-howl needs to be specified
     ## but then the test suite fails
     #[cpanmod => "Net::Rendezvous::Publish::Backend::Howl",
     # [os_freebsd,
     #  [package => 'howl']],
     #],

     [cpanmod => 'Net::SIGTRAN::SCTP',
      # no sctp on freebsd or centos
      [like_debian,
       [package => 'libsctp-dev']]],

     [cpanmod => 'Net::Silk',
      [os_freebsd,
       [package => 'silktools']],
      # does not seem to exist in debian wheezy..buster, Ubuntu 16.04 or 18.04, or CentOS6
     ],

     [cpanmod => 'Net::SSH2',
      [os_freebsd,
       [package => 'libssh2']],
      [like_debian,
       [linuxdistrocodename => [qw(precise)],
	[package => [qw(libssh2-1-dev libgcrypt-dev)]]],
       [package => 'libssh2-1-dev']],
      [like_fedora,
       [package => 'libssh2-devel']],
      # Net-SSH2-0.58 already installs the homebrew package for libssh2 itself
     ],

     [cpanmod => 'Net::SSLeay',
      # freebsd has all libssl in the base system
      [like_debian,
       [package => ['libssl-dev', 'zlib1g-dev']]],
      [like_fedora,
       [package => ['openssl-devel', 'openssl', 'zlib-devel']]], # needs also the openssl binary besides the library/include files
      [os_windows,
       [package => 'openssl.light']], # XXX create openssl.dev
     ],

     [cpanmod => 'Net::WDNS',
      [os_freebsd,
       [package => 'wdns']],
      # not available for debian/wheezy and jessie
     ],

     [cpanmod => ['Net::Z3950::ZOOM', 'Net::Z3950::Simple2ZOOM', 'ZOOM::IRSpy'],
      [os_freebsd,
       [package => 'yaz']],
      [like_debian,
       [package => 'libyaz-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => qr{^7\.}, # available only for CentOS6, not for 7
	[package => []]],
       [linuxdistro => 'rocky', # not available in Rocky 8, probably neither in other versions
	[package => []]],
       [package => 'libyaz-devel']],
      [os_darwin,
       [package => 'yaz']],
     ],

     [cpanmod => ['Net::ZooKeeper', 'ZooKeeper'],
      [os_freebsd,
       [package => 'libzookeeper']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => []]], # not available
       [package => ['libzookeeper-mt-dev', 'zookeeperd']]],
      [os_darwin,
       [package => 'zookeeper']],
     ],

     [cpanmod => 'NewRelic::Agent',
      # freebsd does not work, bundled .so files are linux-only
      [like_debian,
       [before_debian_buster,
	[package => ['g++', 'libcurl3']]],
       [package => ['g++', 'libcurl4']]],
     ],

     [cpanmod => 'Ogg::LibOgg',
      [os_freebsd,
       [package => 'libogg']],
      [like_debian,
       [package => 'libogg-dev']],
      [like_fedora,
       [package => 'libogg-devel']],
     ],

     [cpanmod => ['Ogg::Vorbis', 'Ogg::Vorbis::Decoder'],
      [os_freebsd,
       [package => 'libvorbis']],
      [like_debian,
       [package => 'libvorbis-dev']],
      [like_fedora,
       [package => 'libvorbis-devel']],
     ],

     [cpanmod => 'Ogg::Vorbis::Header',
      [os_freebsd,
       [package => 'libogg']],
      [like_debian,
       [package => ['libogg-dev', 'libvorbis-dev']]],
      [like_fedora,
       [package => ['libogg-devel', 'libvorbis-devel']]],
     ],

     [cpanmod => 'Ogre',
      [os_freebsd,
       [package => 'ogre3d']], # untested
      [like_debian,
       [package => 'libogre-1.9-dev']], # compilation failures
     ],

     [cpanmod => 'OIS',
      ## ois in freebsd ports is 1.2.0, but 1.3.0 is required
      #[os_freebsd,
      # [package => 'ois']],
      [like_debian,
       [package => 'libois-dev']]],

     [cpanmod => 'OpenGL',
      [os_freebsd,
       [package => 'freeglut']],
      [os_dragonfly,
       [package => 'freeglut']],
      [like_debian,
       [package => ['freeglut3-dev', 'libxmu-dev', 'libxi-dev']]],
      [like_fedora,
       [package => ['freeglut-devel', 'libXmu-devel']]],
     ],

     [cpanmod => 'OpenGL::FTGL',
      [like_debian,
       # but does not work, lookup into wrong freetype directory
       [package => ['libftgl-dev', 'libfreetype6-dev']]]],

     [cpanmod => 'OpenGL::GLFW',
      [os_freebsd,
       [package => 'glfw']],
      [like_debian,
       [package => 'libglfw3-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	linuxdistroversion => qr{^7\.},
	package => 'glfw-devel']],
      [os_darwin,
       [package => 'glfw']],
     ],

     [cpanmod => 'OpenGL::Modern',
      [like_fedora,
       [package => 'mesa-libGLU-devel']],
     ],

     [cpanmod => 'PAM',
      [like_debian,
       [package => 'libpam0g-dev']],
      [like_fedora,
       [package => 'pam-devel']],
     ],

     [cpanmod => 'Pango',
      [os_freebsd,
       [package => 'pango']],
      [os_dragonfly,
       [package => 'pango']],
      [os_openbsd,
       [package => 'pango']],
      [like_debian,
       [package => 'libpango1.0-dev']],
      [like_fedora,
       [package => 'pango-devel']],
      [os_darwin,
       [package => 'pango']],
     ],

     [cpanmod => 'Parallel::Pvm',
      [os_freebsd,
       [package => 'pvm']],
      [like_debian,
       [package => 'pvm-dev']]],

     [cpanmod => 'Passwd::Keyring::Gnome',
      [os_freebsd,
       [package => ['libgnome-keyring', 'pkgconf']]],
      [like_debian,
       [before_debian_buster,
	[package => 'libgnome-keyring-dev']],
       [package => []]], # not available for buster and later
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => 'gnome-keyring-devel']],
       [package => 'libgnome-keyring-devel']],
     ],

     [cpanmod => 'PDL::IO::Matlab',
      [os_freebsd,
       [package => 'matio']],
      [like_debian,
       [before_ubuntu_trusty,
	[package => []]],
       [package => 'libmatio-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	[package => []]],
       [package => 'matio-devel']],
     ],

     [cpanmod => 'PDL::NetCDF',
      [os_freebsd,
       [package => 'netcdf']],
      [like_debian,
       [package => 'libnetcdf-dev']]],

     [cpanmod => 'PDL::Opt::GLPK',
      [os_freebsd,
       [package => 'glpk']],
      [like_debian,
       [package => 'libglpk-dev']],
      [like_fedora,
       [package => 'glpk-devel']]],

     [cpanmod => 'PDL::Opt::QP',
      [os_freebsd,
       [package => 'blas']],
      [like_debian,
       [package => 'libblas-dev']],
      [like_fedora,
       [package => 'blas-static']],
     ],

     [cpanmod => 'pEFL',
      [like_debian,
       [linuxdistrocodename => [qw(jessie)],
	[package => 'libelementary-dev']],
       [before_debian_buster,
	[package => []]],
       [package => 'libefl-all-dev']],
      [like_fedora,
       [linuxdistro => 'fedora',
	[package => 'efl-devel']]]],

     [cpanmod => 'PerlQt',
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'libqt3-mt-dev']],
       [package => []] # no libqt3 anymore for wheezy
      ]],

     [cpanmod => 'PGPLOT',
      [os_freebsd,
       [package => 'pgplot']],
      [like_debian,
       [package => 'pgplot5']],
      # fedora-like systems have a pgplot package in the (nonfree) RPM Fusion repository
     ],

     [cpanmod => 'Pod::Spelling',
      # XXX what about freebsd?
      [like_debian,
       [package => 'ispell']]],

     [cpanmod => 'Pod::Weaver::Plugin::Ditaa',
      [like_fedora,
       [linuxdistro => 'centos', # no ditaa for centos6 or 7
	[package => []]],
       # fallthrough for fedora
      ],
      [package => 'ditaa']],

     [cpanmod => 'POE::Component::NomadJukebox',
      # but compilation errors on FreeBSD, Debian and Ubuntu
      [os_freebsd,
       [package => 'libnjb']],
      [like_debian,
       [package => 'libnjb-dev']],
     ],

     [cpanmod => 'Poppler',
      [os_freebsd,
       [package => ['poppler', 'poppler-glib']]],
      [like_debian,
       [package => ['libpoppler-dev', 'libpoppler-glib-dev']]],
      [like_fedora,
       [package => 'poppler-glib-devel']], # but available version too low on CentOS6
      [os_darwin,
       [package => 'poppler']],
     ],

     [cpanmod => 'Prima',
      # XXX what about freebsd?
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise xenial)],
	[package => [qw(libx11-dev libxcursor-dev libxpm-dev libgif-dev libpng12-dev libjpeg-dev), 'pkg-config | pkgconf']]], # XXX maybe also add libtiff...
       [package => [qw(libx11-dev libxcursor-dev libxpm-dev libgif-dev libpng-dev libjpeg-dev), 'pkg-config | pkgconf']], # XXX maybe also add libtiff...
      ],
      [like_fedora,
       [package => [qw(libXcursor-devel)]]], # XXX probably incomplete
     ],

     [cpanmod => 'Primesieve',
      [os_freebsd,
       [osvers => {'>=', 11},
	[package => 'primesieve']]],
      [like_debian,
       [before_ubuntu_xenial,
	[package => []]],
       [linuxdistrocodename => [qw(xenial)],
	[package => 'libprimesieve6-dev']],
       [linuxdistrocodename => [qw(stretch)],
	[package => 'libprimesieve7-dev']],
       [package => 'libprimesieve-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	package => []], # N/A for centos6,7,8
       [package => 'primesieve-devel']],
      [os_darwin,
       [package => 'primesieve']],
     ],

     [cpanmod => 'PulseAudio',
      [package => 'pulseaudio']],

     [cpanmod => 'QDBM_File',
      # XXX debian has libqdbm-dev, but CPAN mod needs patching for -I
      [os_freebsd,
       [package => 'qdbm']]],

     [cpanmod => 'Qstruct',
      # XXX what about freebsd?
      [like_debian,
       [package => 'ragel']]],

     [cpanmod => 're::engine::Hyperscan',
      # not available on CentOS7
      [os_freebsd,
       [package => 'hyperscan']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie xenial)],
	[package => []]], # not available before stretch
       [package => 'libhyperscan-dev']],
      [like_fedora,
       [linuxdistro => 'centos', # not available for 6 and 7
	package => []],
       [package => 'hyperscan-devel']],
     ],

     [cpanmod => 're::engine::PCRE2',
      [os_freebsd,
       [package => 'pcre2']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie)],
	[package => []]], # not available before stretch; available on Ubuntu/xenial
       [package => 'libpcre2-dev']],
      [like_fedora,
       [package => 'pcre2-devel']],
      [os_darwin,
       [package => 'pcre2']],
     ],

     [cpanmod => 'Remind::Client', # but does not work: "Remind output didn't look right; got: 2017/04/24 it works! today"
      [os_freebsd,
       [package => 'remind']],
      [like_debian,
       [package => 'remind']],
     ],

     [cpanmod => 'RPC::Xmlrpc_c::Client',
      [os_freebsd,
       [package => 'xmlrpc-c']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy'],
	[package => 'libxmlrpc-c3-dev']],
       [package => 'libxmlrpc-core-c3-dev']],
      [like_fedora,
       [package => 'xmlrpc-c-devel']],
     ],

#	## various rpm using tools --- XXX which one exactly?
#	## XXX disabled because package was not yet built (last check 2014-08-10)
#	## see http://portsmon.freebsd.org/portoverview.py?category=archivers&portname=rpm5
#	#package { "rpm5": ensure => installed }
     [cpanmod => 'RPM2',
      [like_debian,
       [package => 'librpm-dev']], # but tests fail
      [like_fedora,
       [package => 'rpm-devel']],
     ],

     [cpanmod => 'RPM4',
      [os_freebsd,
       [package => 'rpm4']],
      [like_debian,
       [package => 'rpm']],
      [like_fedora,
       [package => 'rpm']],
      [os_darwin,
       [package => 'rpm']],
     ],

     [cpanmod => 'RRD::Tweak',
      [os_freebsd,
       [package => 'rrdtool']],
      [like_debian,
       [package => 'librrd-dev']],
      [like_fedora,
       [package => 'rrdtool-devel']],
     ],

     # module's Build.PL would try to install the required package itself, which fails in unattended non-root setups
     # unfortunately this does not help --- the module tries always to run the apt/dnf/... commands, even if the package is already installed
     [cpanmod => 'Runtime::Debugger',
      [like_debian,
       [package => 'libreadline-dev']],
      [like_fedora,
       [package => 'readline-devel']],
     ],

     [cpanmod => 'Search::Namazu',
      [os_freebsd,
       [package => 'namazu2']],
      [like_debian,
       [package => 'libnmz7-dev']],
      [os_darwin,
       [package => 'namazu']],
     ],

     [cpanmod => 'Search::Odeum',
      [os_freebsd,
       [package => 'qdbm']],
      [like_debian,
       [package => 'libqdbm-dev']]],

     [cpanmod => 'Search::Xapian',
      [os_freebsd,
       [package => 'xapian-core']],
      [like_debian,
       [package => 'libxapian-dev']],
      [like_fedora,
       [package => 'xapian-core-devel']],
      [os_darwin,
       [package => 'xapian']],
     ],

     [cpanmod => 'SGML::Parser::OpenSP',
      # XXX freebsd has textproc/opensp, but the module requires g++, so this will fail on clang++ systems
      [like_debian,
       [package => 'libosp-dev']],
      [like_fedora,
       [package => 'opensp-devel']],
     ],

     ## version mismatch
     #[cpanmod => 'SNMP',
     # [os_freebsd,
     #  [package => 'net-snmp']],
     # [like_debian,
     #  [package => 'libsnmp-dev']],
     # [like_fedora,
     #  [package => 'net-snmp-devel']],
     #],

     [cpanmod => 'SNMP::OID::Translate',
      [os_freebsd,
       [package => 'net-snmp']],
      [like_debian,
       [package => ['libsnmp-dev', 'snmp-mibs-downloader']]]],

     [cpanmod => ['Sort::Naturally::ICU', 'Unicode::ICU::Collator'],
      [os_freebsd,
       [package => 'icu']], # but Sort::Naturally::ICU build fails
      [like_debian,
       [package => 'libicu-dev']],
      [like_fedora, # Sort::Naturally::ICU builds on centos7 and fedora28, missing further packages on centos6
       [package => 'libicu-devel']],
     ],

     [cpanmod => 'Speech::Recognizer::SPX',
      [os_freebsd,
       [package => 'pocketsphinx']],
      [like_debian,
       [package => ['libpocketsphinx-dev', 'libsphinxbase-dev']]],
     ],

     [cpanmod => ['Spread', 'Spread::Client::Constant'],
      [os_freebsd,
       # net/spread also exists, refering to version 3, but tests seem to pass with version 4
       [package => 'spread4']],
      [like_debian,
       [linuxdistrocodename => 'squeeze',
	[package => 'libspread1-dev']],
       # not available in wheezy and later
      ]],

     [cpanmod => 'Store::CouchDB',
      # tests pass also without, but most tests are skipped
      [os_freebsd,
       [package => 'couchdb']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'jessie'],
	[package => []], # not available in jessie, just wheezy and sid
       ],
       [package => 'couchdb']]],

     [cpanmod => ['SVN::Hooks', 'SVN::Agent', 'SVN::S4'], # XXX maybe more SVN::* modules?
      [package => 'subversion']],

     [cpanmod => 'Sword',
      [os_freebsd,
       [package => 'sword']],
      [like_debian,
       [package => 'libsword-dev']]],

     [cpanmod => 'Sys::Gamin',
      [os_freebsd,
       [package => 'gamin'], # note: possible conflict with fam XXX maybe specify an alternative?
      ],
      [like_debian,
       [package => 'libfam-dev']]],

     [cpanmod => 'Sys::Hwloc',
      [os_freebsd,
       [package => 'hwloc']],
      [like_debian,
       [package => 'libhwloc-dev']],
      [like_fedora,
       [package => 'hwloc-devel']],
     ],

     [cpanmod => 'Sys::Virt', # but the latest Sys::Virt usually needs the latest libvirt
      [os_freebsd,
       [package => 'libvirt']],
      # XXX what about debian?
     ],

     [cpanmod => 'Systemd::Daemon',
      [like_debian,
       [package => 'libsystemd-dev']]],

     [cpanmod => 'Tcl',
      [os_freebsd,
       [package => 'tcl87 | tcl86 | tcl85 | tcl84']],
      [like_debian,
       [package => 'tcl8.6-dev | tcl8.5-dev']],
      [like_fedora,
       [package => 'tcl-devel']],
     ],

     [cpanmod => 'Tcl::pTk',
      [os_freebsd,
       [package => 'tk86 | tk85 | tk84']],
      [like_debian,
       [package => ['tk8.6-dev | tk8.5-dev', 'tcl']]],
     ],

     [cpanmod => 'Tcl::Tk', # XXX maybe also Tkx?
      [os_freebsd,
       [package => 'tk86 | tk85 | tk84']],
      [like_debian,
       # tcllib is needed for the snit package
       [package => ['tk8.6-dev | tk8.5-dev', 'tcllib']]],
      [like_fedora,
       [package => ['tk', 'tcllib']]],
     ],

     [cpanmod => 'TCOD', # currently (with 0.009) does not work
      [like_debian,
       [before_debian_stretch,
	[package => []]], # not available
       [package => 'libtcod-dev']],
     ],

     [cpanmod => 'Template::Plugin::React',
      [os_freebsd,
       [package => 'swig13']],
      # XXX what about debian?
     ],

     [cpanmod => 'Term::EditLine',
      [os_freebsd,
       [package => 'libedit']],
      [like_debian,
       [package => 'libedit-dev']]],

     [cpanmod => ['RL', 'Term::ReadLine::Gnu'],
      [like_debian,
       [before_debian_stretch,
	[package => 'libreadline6-dev']],
       [package => 'libreadline-dev']],

      [like_fedora,
       [package => 'readline-devel']],
      # XXX what about freebsd?
      # XXX no homebrew package for darwin (checked 2016-05-22)
     ],

     [cpanmod => 'Term::Terminfo',
      [like_debian,
       [package => 'libncurses5-dev']],
      [like_fedora,
       [package => 'ncurses-devel']],
     ],

     [cpanmod => 'Term::VTerm',
      [os_freebsd,
       [package => 'libvterm']],
      [like_debian,
       [before_debian_stretch,
	[package => []]],
       [package => 'libvterm-dev']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'<', 7},
	package => []], # N/A for centos6
       [package => 'libvterm-devel']],
      [os_darwin,
       [package => 'libvterm']],
     ],

     [cpanmod => 'Text::AI::CRM114',
      [os_freebsd,
       [package => 'libcrm114']],
      # No package available for Debian or CentOS7
     ],

     [cpanmod => 'Text::Aspell',
      [os_freebsd,
       [# "aspell" alone is not enough, test needs also English dictionary
	package => ['aspell', 'en-aspell']]],
      [like_debian,
       [package => 'libaspell-dev']],
      [like_fedora,
       [# test needs also English dictionary
	package => ['aspell-devel', 'aspell-en']]],
      [os_darwin,
       [package => 'aspell']],
     ],

     [cpanmod => 'Text::Bidi',
      # otherwise real tests are skipped
      [os_freebsd,
       # anyway, version of fribidi available in 2015-04 is too old, so tests are still skipped
       [package => 'fribidi']],
      [like_debian,
       # on wheezy the library is too old, so tests are anyway skipped
       [package => 'libfribidi-dev']],
      [like_fedora,
       [package => 'fribidi-devel']],
      [os_darwin,
       [package => 'fribidi']],
     ],

     [cpanmod => 'Text::CSV::LibCSV',
      [os_freebsd,
       [package => 'libcsv']],
      [like_debian,
       [package => 'libcsv-dev']],
      [like_fedora,
       [package => 'libcsv-devel']],
     ],

     [cpanmod => 'Text::Hspell',
      [os_freebsd,
       [osvers => {'>=', 10},
	[package => 'iw-hspell']],
       [package => []]], # not available for fbsd9
      [like_debian,
       [before_ubuntu_trusty, # not available for wheezy
	[package => []]],
       [package => 'hspell']],
      [like_fedora,
       [linuxdistro => 'centos', linuxdistroversion => {'==', 8}, # not available (maybe not yet?) for CentOS8
	[package => []]],
       [package => 'hspell-devel']],
     ],

     [cpanmod => 'Text::Hunspell',
      [os_freebsd,
       [package => 'hunspell']],
      [like_debian,
       [package => 'libhunspell-dev']]],

     [cpanmod => 'Text::Kakasi',
      [os_freebsd,
       [package => 'ja-kakasi']],
      [like_debian,
       # but there are linking errors on Debian
       [package => 'libkakasi2-dev']],
      [os_darwin,
       [package => 'kakasi']],
      [like_fedora,
       [linuxdistro => 'centos',
	package => []], # N/A for centos6+7
       [package => ['kakasi-devel', 'kakasi-dict']]],
     ],

     [cpanmod => 'Text::Migemo',
      [os_freebsd,
       [package => 'ja-migemo']],
      [like_debian,
       [package => 'libmigemo-dev']]],

     [cpanmod => 'Text::QRCode',
      [os_freebsd,
       [package => 'libqrencode']],
      [like_debian,
       [package => 'libqrencode-dev']],
      [like_fedora,
       [package => 'qrencode-devel']],
     ],

     [cpanmod => 'Text::Treesitter',
      [os_freebsd,
       [osvers => {'<', 13},
	[package => []]],
       [package => 'tree-sitter']],
      [like_debian,
       [before_ubuntu_jammy,
	[package => []]],
       [package => 'libtree-sitter-dev']],
      [like_fedora,
       [linuxdistro => 'centos',
	[package => []]],
       [package => 'libtree-sitter-devel']],
     ],

     [cpanmod => 'Text::VimColor',
      [package => 'vim']],

     [cpanmod => 'Tie::Cvs',
      [package => 'cvs']],

     [cpanmod => 'Tie::Judy', # but tests fail (hash randomization?)
      [os_freebsd,
       [package => 'judy']],
      [like_debian,
       [package => 'libjudy-dev']],
      [like_fedora,
       [package => 'Judy-devel']],
     ],

     [cpanmod => 'Tree::Suffix',
      [os_freebsd,
       [package => 'libstree']],
      # XXX what about debian?
     ],

     [cpanmod => 'Tk',
      # freetype2 and libXft are optional, but highly recommended as it provides nicer fonts
      # jpeg and png is bundled in Tk, but usually the Tk version is older
      [os_freebsd,
       [osvers => {'<', freebsd_new_jpeg_osvers}, [package => [qw(freetype2 libXft libX11 png), freebsd_old_jpeg]]],
       [package => [qw(freetype2 libXft libX11 png), freebsd_new_jpeg]]],
      [like_debian,
       [package => [qw(libx11-dev libfreetype6-dev libxft-dev libpng-dev libz-dev libjpeg-dev)]]],
      [like_fedora,
       [package => [qw(libX11-devel libXft-devel libpng-devel zlib-devel libjpeg-devel)]]],
     ],

     [cpanmod => 'Tk::TIFF',
      [os_freebsd,
       [package => 'tiff']],
      [like_debian,
       [linuxdistrocodename => ['squeeze', 'wheezy', 'precise'],
	[package => 'libtiff4-dev']],
       [package => 'libtiff5-dev']]],

     [cpanmod => 'Tk::Zinc',
      # XXX freebsd?
      [like_debian,
       [package => ['mesa-common-dev', 'libglu1-mesa-dev']]]],

     [cpanmod => 'UAV::Pilot::SDL',
      [like_debian,
       [package => ['libavcodec-dev', 'libswscale-dev', 'libsdl1.2-dev']]],
     ],

     [cpanmod => 'UAV::Pilot::Video::Ffmpeg',
      [like_debian,
       [package => 'libavcodec-dev']],
     ],

     [cpanmod => 'UDT::Simple',
      [os_freebsd,
       [package => 'udt']],
      [like_debian,
       [package => 'libudt-dev']]],

     [cpanmod => 'Unix::Statgrab',
      [os_freebsd,
       [package => 'libstatgrab']],
      [os_dragonfly,
       [package => 'libstatgrab']],
      [os_openbsd,
	# doesn't work
       [package => 'libstatgrab']],
      [like_debian,
       # unfortunately does not work in wheezy, the library version is too old for the module
       # jessie and later is fine
       [package => 'libstatgrab-dev']],
      [like_fedora,
       # package found in CentOS7 is probably too old
       [package => 'libstatgrab-devel']],
      [os_darwin,
       [package => 'libstatgrab']]],

     [cpanmod => ['URPM', 'URPM::Resolve', 'urpmi'],
      [os_freebsd,
       [package => 'rpm4']],
      [like_debian,
       [package => ['rpm', 'librpm-dev']]], # but does not work anyway with the librpm version as found on squeeze
      [like_fedora,
       [package => ['rpm', 'rpm-build', 'rpm-devel']]],
      [os_darwin,
       [package => 'rpm']],
     ],

     [cpanmod => 'USB::LibUSB',
      [like_debian,
       [package => 'libusb-1.0-0-dev']], # exists on wheezy, but: Minimum required version of libusb-1.0 is 1.0.17. Installed: 1.0.11
     ],

     # Since UV::Util 0.03 Alien::libuv is used
     # But keep this mapping in case somebody wants to
     # force usage of the native system packages.
     ($ENV{PERL_CPAN_SYSDEPS_UV_UTIL_NATIVE}
      ? [cpanmod => 'UV::Util',
	 [os_freebsd,
	  [package => 'libuv']], # does not work, -I/usr/local/include seems to be missing
	 [like_debian,
	  [linuxdistrocodename => ['squeeze', 'wheezy'],
	   [package => []], # not available before jessie
	  ],
	  [linuxdistrocodename => ['jessie', 'xenial'],
	   [package => 'libuv0.10-dev']], # does not work, probably too old
	  [package => 'libuv1-dev']],
	 [like_fedora,
	  [package => 'libuv-devel']],
	]
      : ()
     ),

     [cpanmod => 'Video::FFmpeg',
      [package => 'ffmpeg']], # on Debian only found in backports or www.deb-multimedia.org; still does not build because avformat.h is not available

     [cpanmod => 'Video::Xine',
      [os_freebsd,
       [package => 'libxine']],
      [like_debian,
       [package => 'libxine2-dev']]],

     [cpanmod => 'Video::ZVBI',
      [os_freebsd,
       [package => 'libzvbi']],
      [like_debian,
       [before_ubuntu_trusty,
	[package => []]],
       [package => 'libzvbi-dev']],
     ],

     [cpanmod => 'Vlc::Engine',
      [os_freebsd,
       [package => 'vlc']],
      [like_debian,
       [package => 'libvlc-dev']],
      ## Does not seem to contain include files
      #[os_darwin,
      # [package => 'caskroom/cask/vlc']],
     ],

     [cpanmod => 'WordNet::QueryData',
      [os_freebsd,
       [package => 'wordnet']],
      [like_debian,
       [package => 'wordnet-base']],
      [like_fedora,
       [package => 'wordnet']],
     ],

     [cpanmod => 'WordNet::SenseKey',
      [os_freebsd,
       [package => 'wordnet']],
      [like_debian,
       [package => 'wordnet-sense-index']],
     ],

     [cpanmod => 'WWW::Bootstrap',
      [os_freebsd,
       [package => 'npm']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy)],
	[package => []]],
       [package => 'npm']]],

     [cpanmod => ['WWW::Curl', 'Net::Curl'],
      [os_openbsd,
	# doesn't work
       [package => 'curl']],
      [os_freebsd,
       [package => 'curl']],
      [like_debian,
       [package => 'libcurl4-openssl-dev | libcurl4-gnutls-dev | libcurl4-nss-dev']],
      [like_fedora,
       [package => 'libcurl-devel']],
      [os_darwin,
       [package => []]], # libcurl is in the base system
     ],

     [cpanmod => 'WWW::Mechanize::Chrome',
      [os_freebsd,
       [package => 'chromium']],
      [os_openbsd,
	# doesn't work
       [package => 'chromium']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise)],
	[package => []]], #
       [package => 'chromium']],
      [os_windows,
       [package => 'chromium']],
      [os_darwin,
       [package => 'chromium']],
     ],

     [cpanmod => 'WWW::Mechanize::PhantomJS',
      [os_freebsd,
       [package => 'phantomjs']],
      [os_openbsd,
	# doesn't work
       [package => 'phantomjs']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie precise)],
	[package => []]], # see also https://gist.github.com/julionc/7476620
       [package => 'phantomjs']],
      [os_windows,
       [package => 'phantomjs']],
      [os_darwin,
       [package => 'phantomjs']],
     ],

     [cpanmod => 'Wx',
      [os_freebsd,
       [package => 'wx30-gtk3 | wx30-gtk2']],
      # XXX what about debian?
      # fedora: no package needed (e.g wxGTK-devel or wxGTK3-devel), works with Alien::wxWidgets
     ],

     [cpanmod => 'XML::LibXML',
      [os_freebsd,
       [package => 'libxml2']],
      [os_dragonfly,
       [package => 'libxml2']],
      [os_openbsd,
	# doesn't work at the moment
       [package => 'libxml2']],
      [like_debian,
       [package => 'libxml2-dev']],
      [like_fedora,
       [package => 'libxml2-devel']],
      [os_darwin,
       [package => []]], # libxml2.dylib is part of the base system
     ],

     [cpanmod => 'XML::LibXSLT',
      [os_freebsd,
       [package => 'libxslt', 'pkgconf']], # pkg-config is required to find location of libxml2 header files
      [os_dragonfly,
       [package => 'libxslt']],
      [os_openbsd,
       [package => 'libxslt']],
      [like_debian,
       [package => ['libxslt1-dev', 'libgdbm-dev']]],
      [like_fedora,
       [package => 'libxslt-devel']],
      [os_darwin,
       [package => []]], # libxslt.dylib is part of the base system
     ],

     [cpanmod => 'XML::Parser',
      [os_freebsd,
       [package => 'expat']],
      [os_dragonfly,
       [package => 'expat']],
      [os_openbsd,
       [package => 'expat']],
      [like_debian,
       [package => 'libexpat1-dev']],
      [like_fedora,
       [package => 'expat-devel']],
     ],

     [cpanmod => 'XML::Sablotron',
      # compiles only with perl < 5.14, see https://rt.cpan.org/Ticket/Display.html?id=66849
      [os_freebsd,
       [package => 'Sablot']],
      # no sablot package on debian
     ],

     [cpanmod => 'XML::Saxon::XSLT2', # needs java
      [os_freebsd,
       [package => 'saxon-he']],
      # XXX what about debian?
     ],

     [cpanmod => 'XML::WBXML',
      [os_freebsd,
       [package => 'wbxml2']],
      [like_debian,
       [package => 'libwbxml2-dev']]],

     [cpanmod => 'XML::Xerces', # "You must use Xerces-C-2.7.0"
      [os_freebsd,
       [package => 'xerces-c2']],
      [like_debian,
       # probably needs setting of XERCES_* variables?
       [linuxdistrocodename => ['wheezy'],
	[package => 'libxerces-c2-dev']],
       [package => 'libxerces-c-dev'], # will not work, because jessie has Xerces-C-3.1.1
      ]],

     [cpanmod => 'X::Osd',
      [os_freebsd,
       [package => 'xosd']],
      [like_debian,
       [package => 'libxosd-dev']]],

     [cpanmod => 'X11::FullScreen',
      [os_freebsd,
       [package => 'imlib2']],
      [like_debian,
       [package => 'libimlib2-dev']]],

     [cpanmod => 'X11::GUITest',
      # XXX what about freebsd?
      [like_debian,
       [package => ['libxt-dev', 'libxtst-dev']]],
      [like_fedora,
       [package => 'libXtst-devel']],
     ],

     [cpanmod => 'X11::XCB',
      [os_freebsd,
       [package => ['expat', 'pkgconf', 'xcb-proto', 'xcb-util-wm']]],
      [like_fedora,
       [package => ['expat-devel', 'libxcb-devel', 'xcb-util-devel', 'xcb-util-wm-devel', 'xcb-proto']]],
      [like_debian,
       [before_ubuntu_focal,
	[package => []]],
       [package => ['libxcb-composite0-dev', 'libxcb-ewmh-dev', 'libxcb-icccm4-dev', 'libxcb-randr0-dev',
        'libxcb-render0-dev', 'libxcb-util-dev', 'libxcb-util0-dev', 'libxcb-xinerama0-dev', 'libxcb-xinput-dev',
        'libxcb-xkb-dev', 'libxcb-xtest0-dev', 'libxcb1-dev', 'xcb-proto', 'xsltproc']]]],

     [cpanmod => 'X11::Xlib',
      [os_freebsd,
       [package => 'libXtst']],
      [os_dragonfly,
       [package => 'libXtst']],
      [like_debian,
       [package => 'libxtst-dev']],
      [like_fedora,
       [package => 'libXtst-devel']],
     ],

     [cpanmod => 'YAML::LibYAML::API',
      [os_freebsd,
       [package => 'libyaml']],
      [like_debian,
       [package => 'libyaml-dev']],
      [like_fedora,
       [package => 'libyaml-devel']],
      [os_darwin,
       [package => 'libyaml']],
     ],

     [cpanmod => 'ZMQ::FFI',
      [os_freebsd,
       [package => 'libzmq4']], # seems to hang with nonthreaded perls on freebsd, wait-and-kill rule exists
      [os_dragonfly,
       [package => 'libzmq4']],
      [like_debian,
       [linuxdistrocodename => [qw(squeeze wheezy jessie xenial)],
	[package => 'libzmq-dev']],
       [package => 'libzmq3-dev']], # e.g. stretch
      [os_darwin,
       [package => 'zmq']],
     ],

     [cpanmod => 'ZMQ::LibZMQ4',
      [os_freebsd,
       [package => 'libzmq4']], # seems to hang with nonthreaded perls on freebsd, wait-and-kill rule exists (?)
      [os_dragonfly,
       [package => 'libzmq4']],
      [like_debian,
#       [linuxdistrocodename => [qw(squeeze wheezy jessie)],
#	[package => []]], # libzmq5 is ZMQ4.1 (!); according to http://zeromq.org/distro:debian only available in experimental (and probably sid)
       [package => 'libzmq3-dev'], # note: libzmq3-dev is ZMQ4.0 (!)
      ]],

     [cpanmod => 'Zonemaster::LDNS',
      [os_freebsd,
       [package => ['libidn2']]], # untested
      [like_debian,
       [package => ['libidn2-dev', 'libssl-dev']]],
      [like_fedora,
       [package => ['libidn2-devel', 'openssl-devel']]],
     ],

     [cpanmod => 'ZOOM::IRSpy',
      [os_freebsd,
       [package => 'yaz']],
      [like_debian,
       [package => 'libyaz4-dev']]],

# XXX find out which modules:
#	# various wordnet-using modules
#	package { "wordnet-base": ensure => installed }

    );
}

1;

__END__