pmerge --pretend --verbose
[ebuild U ] dev-lang/perl-5.44.0:0/5.44::gentoo [5.42.0-r1:0/5.42::gentoo] USE="gdbm -berkdb -doc -minimal" PERL_FEATURES="ithreads (-debug) -quadmath" 14.4 MiB
[ebuild N ] virtual/perl-Time-HiRes-1.978.0::gentoo
[ebuild N ] dev-perl/Tie-IxHash-1.230.0-r1::gentoo USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 9.1 KiB
[ebuild N ] dev-perl/XML-XPath-1.480.0::gentoo USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 55.5 KiB
[ebuild N ] dev-perl/Text-Iconv-1.700.0-r3::gentoo USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 10.2 KiB
[ebuild N ] dev-perl/XML-Twig-3.540.0::gentoo USE="nls -test" PERL_FEATURES="ithreads (-debug) -quadmath" 280.2 KiB
[ebuild N ] dev-perl/Net-DBus-1.2.0::gentoo USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 105.8 KiB
Total: 7 packages (6 new, 1 upgrade), Size of downloads: 14.8 MiB
* Running sanity checks...
>>> dev-lang/perl-5.44.0: failed pkg_pretend
/Volumes/Disk 1/gentoo-prefix/usr/lib/pkgcore/lib/pkgcore/ebd/.generated/libs/8/pkg_pretend: line 144: [[: invalid regular expression `': empty (sub)expression
* ERROR: dev-lang/perl-5.44.0:: failed (pretend phase):
* USE flag 'perl_features_ithreads' not in IUSE for dev-lang/perl-5.44.0
*
* Call stack:
* isolated-functions.bash, line 333: called pkg_pretend
* ebuild.bash, line 1834: called use 'perl_features_ithreads'
* pkg_pretend, line 145: called die
*
* Working directory: '/var/tmp/portage'
!!! Sanity checks failed, exiting...
- Wall time
- 0.746 s vs. 0.666 s for portage-ng