Something

i686-pc-linux-gnu-ranlib .libs/libbackground.a
creating libbackground.la
(cd .libs && rm -f libbackground.la && ln -s ../libbackground.la libbackground.la)
make[2]: Leaving directory `/var/tmp/portage/gnome-base/nautilus-2.16.3/work/nautilus-2.16.3/libbackground'
Making all in libnautilus-private
make[2]: Entering directory `/var/tmp/portage/gnome-base/nautilus-2.16.3/work/nautilus-2.16.3/libnautilus-private'
/usr/bin/orbit-idl-2 -I.. -I /usr/share/idl/bonobo-activation-2.0 -I /usr/share/idl/bonobo-2.0 nautilus-metafile-server.idl
/usr/bin/glib-genmarshal nautilus-marshal.list --header --prefix=nautilus_marshal > nautilus-marshal.h
/usr/bin/glib-genmarshal nautilus-marshal.list --body --prefix=nautilus_marshal > nautilus-marshal-guts.c
LC_ALL=C ../intltool-merge -s -u -c ../po/.intltool-merge-cache ../po apps_nautilus_preferences.schemas.in apps_nautilus_preferences.schemas
orbit-idl-2 2.14.2 compiling
  mode, hide preprocessor errors, passes: stubs skels common headers 

Processing file nautilus-metafile-server.idl
Generating and caching the translation database

** (orbit-idl-2:21470): WARNING **: nautilus-metafile-server.idl compilation failed
make[2]: *** [nautilus_metafile_server_idl_stamp] Error 1
make[2]: *** Waiting for unfinished jobs....
Merging translations into apps_nautilus_preferences.schemas.
make[2]: Leaving directory `/var/tmp/portage/gnome-base/nautilus-2.16.3/work/nautilus-2.16.3/libnautilus-private'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/gnome-base/nautilus-2.16.3/work/nautilus-2.16.3'
make: *** [all] Error 2

!!! ERROR: gnome-base/nautilus-2.16.3 failed.
Call stack:
  ebuild.sh, line 1614:   Called dyn_compile
  ebuild.sh, line 971:   Called qa_call 'src_compile'
  environment, line 3512:   Called src_compile
  ebuild.sh, line 1304:   Called gnome2_src_compile
  gnome2.eclass, line 71:   Called die

!!! compile failure
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/gnome-base/nautilus-2.16.3/temp/build.log'.