portage-ng / portage / net-libs / libmicrohttpd / 1.0.1-r1
pmerge --pretend --verbose
[ebuild   R    ] net-libs/libmicrohttpd-1.0.1-r1:0/12::gentoo USE="epoll eventfd ssl thread-names -debug -static-libs -test -verify-sig" 2.1 MiB

Total: 1 package (1 reinstall), Size of downloads: 2.1 MiB


 * Running sanity checks...
>>> net-libs/libmicrohttpd-1.0.1-r1: 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-libs/libmicrohttpd-1.0.1-r1:: failed (pretend phase):
  *   USE flag 'kernel_linux' not in IUSE for net-libs/libmicrohttpd-1.0.1-r1
  * 
  * Call stack:
  *    isolated-functions.bash, line  333:  called pkg_pretend
  *                ebuild.bash, line 2130:  called use 'kernel_linux'
  *                pkg_pretend, line  145:  called die
  * 
  * Working directory: '/var/tmp/portage'

!!! Sanity checks failed, exiting...

Wall time
0.720 s vs. 0.004 s for portage-ng