pmerge --pretend --verbose
[ebuild N ] acct-group/privoxy-0-r3::gentoo
[ebuild N ] acct-user/privoxy-0-r3::gentoo
[ebuild N ] net-proxy/privoxy-4.2.0::gentoo USE="acl fast-redirects force image-blocking ipv6 jit openssl ssl stats threads zlib zstd -brotli -client-tags -compression -editor -extended-host-patterns -extended-statistics -external-filters -fuzz -graceful-termination -lfs -mbedtls -png-images -sanitize (-selinux) -toggle -tools -whitelists" 1.7 MiB
Total: 3 packages (3 new), Size of downloads: 1.7 MiB
* Running sanity checks...
>>> net-proxy/privoxy-4.2.0: 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: net-proxy/privoxy-4.2.0:: failed (pretend phase):
* USE flag 'threads' not in IUSE for net-proxy/privoxy-4.2.0
*
* Call stack:
* isolated-functions.bash, line 333: called pkg_pretend
* ebuild.bash, line 1242: called use 'threads'
* pkg_pretend, line 145: called die
*
* Working directory: '/var/tmp/portage'
!!! Sanity checks failed, exiting...
- Wall time
- 1.200 s vs. 0.026 s for portage-ng