[ebuild  N     ] net-libs/libwebsockets-4.5.8-r1:0/20::gentoo USE="dbus ipv6 lejp smtp ssl threads -access-log -caps -cgi -client -extensions -generic-sessions -http-proxy -http2 -libev -libevent -libuv -mbedtls -peer-limits -server-status -socks5 -sqlite3 -zip" 19.2 MiB

Total: 1 package (1 new), Size of downloads: 19.2 MiB


 * Running sanity checks...
>>> net-libs/libwebsockets-4.5.8-r1: failed REQUIRED_USE
  Failed to match: libuv
  from: libuv at-most-one-of ( libev libevent )
  for USE: abi_x86_64 amd64 dbus elibc_glibc ipv6 kernel_linux lejp llvm_targets_X86 smtp split-usr ssl test-rust threads

!!! Sanity checks failed, exiting...