Running eix-update fails on some packages.

Sample of error output:

Reading category 126|163 ( 77): sci-libs...
cannot properly execute /var/git/meta-repo/kits/science-kit/sci-libs/hdf/hdf-4.2.8.ebuild
Reading category 126|163 ( 77): sci-libs... * ERROR: sci-libs/hdf-4.2.9::science-kit failed (depend phase):

• autotools: EAPI 4 not supported
• Call stack:
• ebuild.sh, line 577: Called source '/var/git/meta-repo/kits/science-kit/sci-libs/hdf/hdf-4.2.9.ebuild'
• hdf-4.2.9.ebuild, line 8: Called inherit 'eutils' 'fortran-2' 'toolchain-funcs' 'autotools' 'flag-o-matic'
• ebuild.sh, line 282: Called __qa_source '/var/git/meta-repo/kits/core-kit/eclass/autotools.eclass'
• ebuild.sh, line 80: Called source '/var/git/meta-repo/kits/core-kit/eclass/autotools.eclass'
• autotools.eclass, line 17: Called die
• The specific snippet of code:
• *) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
• If you need support, post the output of `emerge --info '=sci-libs/hdf-4.2.9::science-kit'`,
• the complete build log and the output of `emerge -pqv '=sci-libs/hdf-4.2.9::science-kit'`.
• Working directory: '/usr/lib64/python3.9/site-packages'
• S: '/hdf-4.2.9'

ebuild failed with status 1