These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.13 s (backtrack: 0/20).

[ebuild  N     ] net-libs/libvncserver-0.9.15-r1::gentoo  USE="24bpp filetransfer ipv6 jpeg png ssl threads zlib -gnutls -lzo -sasl (-systemd) -test" 587 KiB
[ebuild  N     ] x11-libs/libXcursor-1.2.3::gentoo  USE="-doc" 286 KiB
[ebuild  N     ] x11-libs/libXtst-1.2.5::gentoo  USE="-doc" 285 KiB
[ebuild  N     ] x11-libs/libXcomposite-0.4.7::gentoo  USE="-doc" 267 KiB
[ebuild  N     ] x11-libs/libXdamage-1.1.7::gentoo  260 KiB
[ebuild  N     ] dev-lang/tk-8.6.17:0/8.6::gentoo  USE="threads truetype (-aqua) -debug -test -xscreensaver" 4486 KiB
[ebuild  N     ] x11-misc/x11vnc-0.9.17::gentoo  USE="crypt ssl xcomposite xdamage xfixes xrandr zeroconf -drm -fbcon -xinerama" 1652 KiB

Total: 7 packages (7 new), Size of downloads: 7820 KiB