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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] dev-ml/ocaml-autoconf-1.1-r1::gentoo  11 KiB
[ebuild  N     ] app-text/NaturalDocs-1.52-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 450 KiB
[ebuild  N     ] dev-lang/ocaml-5.5.1:0/5.5.1::gentoo  USE="ocamlopt -emacs -flambda -latex -test -xemacs" 6457 KiB
[ebuild  N     ] app-admin/augeas-1.14.1-r1::gentoo  USE="(-selinux) -test" 2592 KiB
[ebuild  N     ] dev-ml/findlib-1.9.8-r1:0/1::gentoo  USE="ocamlopt -doc -tk" 269 KiB
[ebuild  N     ] dev-ml/ocaml-augeas-0.5::gentoo  USE="ocamlopt" 59 KiB

Total: 6 packages (6 new), Size of downloads: 9836 KiB