Perl 5.42.0 SGML module not found

t/00-perms.t ........... ok

#   Failed test 'use Locale::Po4a::Sgml;'
#   at t/01-classes.t line 31.
#     Tried to use 'Locale::Po4a::Sgml'.
#     Error:  po4a::sgml: The needed module SGMLS.pm was not found and needs to be installed. It can be found on the CPAN, in package libsgmls-perl on debian, etc.
# Compilation failed in require at t/01-classes.t line 31.
# BEGIN failed--compilation aborted at t/01-classes.t line 31.
# Looks like you failed 1 test of 24.
t/01-classes.t .........
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/24 subtests
t/12-msguntypot.t ...... ok
t/13-plural.t .......... ok
t/add.t ................ ok
t/cfg-args.t ........... ok
t/cfg-multi.t .......... ok
t/cfg-option.t ......... ok
t/cfg-single.t ......... ok
t/cfg-split.t .......... ok
t/charset.t ............ ok
t/context.t ............ ok
t/core-porefs.t ........ ok
t/fmt-asciidoc.t ....... ok
t/fmt-docbook.t ........ ok
t/fmt-gemtext.t ........ ok
t/fmt-halibut.t ........ ok
t/fmt-ini.t ............ ok
t/fmt-man.t ............ ok
t/fmt-org.t ............ ok
t/fmt-pod.t ............ ok
t/fmt-rubydoc.t ........ ok

    #   Failed test 'Normalizing Format fmt/sgml/basic.sgml: 256'
    #   at t/Testhelper.pm line 444.

    #   Failed test 'Translating Format fmt/sgml/basic.sgml (retcode: 256)'
    #   at t/Testhelper.pm line 143.

    #   Failed test 'Provided command (retcode: 256)'
    #   at t/Testhelper.pm line 143.

    #   Failed test 'Provided command (retcode: 256)'
    #   at t/Testhelper.pm line 143.
    # Produced file tmp/fmt/sgml:
    # (end of tmp/fmt/sgml)
    # -------------------------------------------------------------
    # Looks like you failed 4 tests of 4.

#   Failed test 'Format fmt/sgml/basic.sgml'
#   at t/Testhelper.pm line 543.

    #   Failed test 'Normalizing Format fmt/sgml/attributes-order.sgml: 256'
    #   at t/Testhelper.pm line 444.

    #   Failed test 'Translating Format fmt/sgml/attributes-order.sgml (retcode: 256)'
    #   at t/Testhelper.pm line 143.

    #   Failed test 'Provided command (retcode: 256)'
    #   at t/Testhelper.pm line 143.

    #   Failed test 'Provided command (retcode: 256)'
    #   at t/Testhelper.pm line 143.
    # Produced file tmp/fmt/sgml:
    # (end of tmp/fmt/sgml)
    # -------------------------------------------------------------
    # Looks like you failed 4 tests of 4.

#   Failed test 'Format fmt/sgml/attributes-order.sgml'
#   at t/Testhelper.pm line 543.
# Looks like you failed 2 tests of 2.
t/fmt-sgml.t ...........
Dubious, test returned 2 (wstat 512, 0x200)
Failed 2/2 subtests
t/fmt-simplepod.t ...... ok
t/fmt-tex.t ............ ok
t/fmt-texinfo.t ........ ok
t/fmt-texinfoparser.t .. ok
t/fmt-txt-fortunes.t ... ok
t/fmt-txt-markdown.t ... ok
t/fmt-txt.t ............ ok
t/fmt-vimhelp.t ........ ok
t/fmt-wml.t ............ ok
t/fmt-xhtml.t .......... ok
t/fmt-xml-dia.t ........ ok
t/fmt-xml.t ............ ok
t/fmt-yaml.t ........... ok
t/gettextize.t ......... ok
t/po.t ................. ok
t/pod.t ................ ok

Test Summary Report
-------------------
t/01-classes.t       (Wstat: 256 (exited 1) Tests: 24 Failed: 1)
  Failed test:  17
  Non-zero exit status: 1
t/fmt-sgml.t         (Wstat: 512 (exited 2) Tests: 2 Failed: 2)
  Failed tests:  1-2
  Non-zero exit status: 2
Files=39, Tests=488, 263 wallclock secs ( 1.40 usr  0.24 sys + 222.19 cusr 44.51 csys = 268.34 CPU)
Result: FAIL
Failed 2/39 test programs. 3/488 subtests failed.