pmerge --pretend --verbose
[ebuild N ] dev-lang/ada-bootstrap-0_p2021-r1::gentoo 338.1 MiB
Total: 1 package (1 new), Size of downloads: 338.1 MiB
* Running sanity checks...
>>> dev-lang/ada-bootstrap-0_p2021-r1: failed pkg_pretend
* ERROR: dev-lang/ada-bootstrap-0_p2021-r1:: failed (pretend phase):
* ada-bootstrap-0_p2021 does not build with clang. It is bootstrapped.
*
* Call stack:
* isolated-functions.bash, line 333: called pkg_pretend
* ebuild.bash, line 1127: called die
*
* Working directory: '/var/tmp/portage'
!!! Sanity checks failed, exiting...
- Wall time
- 0.755 s vs. 0.008 s for portage-ng