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

Calculating dependencies ... done!
Dependency resolution took 1.44 s (backtrack: 0/20).


!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

dev-libs/glib:2

  (dev-libs/glib-2.84.4-r2:2/2::gentoo, installed) USE="dbus elf mime xattr -debug -doc -introspection (-selinux) -static-libs -sysprof -systemtap -test -utils" pulled in by
    (no parents that aren't satisfied by other packages in this slot)

  (dev-libs/glib-2.88.3:2/2::gentoo, ebuild scheduled for merge) USE="dbus elf introspection mime xattr -debug -doc (-selinux) -static-libs -sysprof -systemtap -test -utils" pulled in by
    >=dev-libs/glib-2.82.0:2[introspection] required by (dev-libs/gobject-introspection-1.86.0-r1:0/0::gentoo, ebuild scheduled for merge) USE="-doctool -gtk-doc -test" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13"
                             ^^^^^^^^^^^^^                                                                                                                                                                                                                                                                                                                                              


!!! Enabling --newuse and --update might solve this conflict.
!!! If not, it might help emerge to give a more specific suggestion.


The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by x11-misc/xdg-utils-1.2.1-r11::gentoo
# required by kde-frameworks/kf-env-6::gentoo
# required by kde-frameworks/kwallet-runtime-6.31.0::gentoo
# required by kde-frameworks/kwallet-6.31.0::gentoo[-minimal]
# required by kde-frameworks/kio-6.31.0::gentoo[kwallet]
# required by kde-frameworks/kparts-6.31.0::gentoo
# required by kde-plasma/keditfiletype-6.8.0::gentoo
>=app-text/xmlto-0.0.28-r11 text
# required by kde-frameworks/kio-6.31.0::gentoo
# required by kde-frameworks/kparts-6.31.0::gentoo
# required by kde-plasma/keditfiletype-6.8.0::gentoo
>=dev-qt/qtbase-6.11.2-r2 icu libproxy
# required by dev-libs/gobject-introspection-1.86.0-r1::gentoo
# required by dev-python/pygobject-3.58.0::gentoo
# required by sys-power/switcheroo-control-3.0::gentoo[python_single_target_python3_14]
# required by kde-frameworks/kio-6.31.0::gentoo
# required by kde-frameworks/kparts-6.31.0::gentoo
# required by kde-plasma/keditfiletype-6.8.0::gentoo
>=dev-libs/glib-2.88.3 introspection
# required by app-crypt/qca-2.3.12::gentoo
# required by kde-frameworks/kwallet-runtime-6.31.0::gentoo
# required by kde-frameworks/kwallet-6.31.0::gentoo[-minimal]
# required by kde-frameworks/kio-6.31.0::gentoo[kwallet]
# required by kde-frameworks/kparts-6.31.0::gentoo
# required by kde-plasma/keditfiletype-6.8.0::gentoo
>=dev-qt/qt5compat-6.11.2 icu

 * In order to avoid wasting time, backtracking has terminated early
 * due to the above autounmask change(s). The --autounmask-backtrack=y
 * option can be used to force further backtracking, but there is no
 * guarantee that it will produce a solution.