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

Calculating dependencies ... done!
Dependency resolution took 2.13 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-apps/kdesdk-thumbnailers-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=app-text/xmlto-0.0.28-r11 text
# required by kde-frameworks/kio-6.31.0::gentoo
# required by kde-apps/kdesdk-thumbnailers-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=dev-qt/qtbase-6.11.2-r2 libproxy icu wayland
# required by dev-libs/gobject-introspection-1.86.0-r1::gentoo
# required by dev-python/pygobject-3.58.0::gentoo
# required by sys-libs/libblockdev-3.5.0::gentoo[python,python_single_target_python3_14]
# required by sys-fs/udisks-2.11.2::gentoo
# required by kde-frameworks/solid-6.31.0::gentoo
# required by kde-apps/kio-extras-26.08.2::gentoo
# required by kde-apps/dolphin-26.08.2::gentoo
# required by kde-apps/dolphin-plugins-git-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo[git]
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=dev-libs/glib-2.88.3 introspection
# required by kde-frameworks/kauth-6.31.0::gentoo[policykit]
# required by kde-frameworks/ktexteditor-6.31.0::gentoo
# required by kde-apps/kompare-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=kde-frameworks/kwindowsystem-6.31.0 wayland
# required by kde-plasma/polkit-kde-agent-6.8.0::gentoo
# required by kde-frameworks/kauth-6.31.0::gentoo[policykit]
# required by kde-frameworks/ktexteditor-6.31.0::gentoo
# required by kde-apps/kompare-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=dev-qt/qt5compat-6.11.2 qml
# required by kde-plasma/libplasma-6.8.0::gentoo
# required by kde-plasma/polkit-kde-agent-6.8.0::gentoo
# required by kde-frameworks/kauth-6.31.0::gentoo[policykit]
# required by kde-frameworks/ktexteditor-6.31.0::gentoo
# required by kde-apps/kompare-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=kde-frameworks/kconfig-6.31.0 qml
# required by kde-apps/kde-dev-utils-26.08.2::gentoo
# required by kde-apps/kdesdk-meta-26.04.3::gentoo
# required by =kde-apps/kdesdk-meta-26.04.3 (argument)
>=dev-qt/qttools-6.11.2 designer

!!! The ebuild selected to satisfy ">=dev-qt/qttools-6.11.2:6[designer,widgets]" has unmet requirements.
- dev-qt/qttools-6.11.2::gentoo USE="assistant linguist opengl qdbus widgets (zstd) -custom-cflags -designer -distancefieldgenerator -gles2-only -kmap2qmap -pixeltool -qdoc -qml -qmlls -qtattributionsscanner -qtdiag -qtplugininfo -vulkan" LLVM_SLOT="22 -17 -18 -19 -20 -21"

  The following REQUIRED_USE flag constraints are unsatisfied:
    designer? ( qml )

  The above constraints are a subset of the following complete expression:
    assistant? ( widgets ) designer? ( qml widgets ) distancefieldgenerator? ( qml widgets ) pixeltool? ( widgets ) qdoc? ( qml exactly-one-of ( llvm_slot_17 llvm_slot_18 llvm_slot_19 llvm_slot_20 llvm_slot_21 llvm_slot_22 ) ) qmlls? ( assistant qml )

(dependency required by "kde-apps/kde-dev-utils-26.08.2::gentoo" [ebuild])
(dependency required by "kde-apps/kdesdk-meta-26.04.3::gentoo" [ebuild])
(dependency required by "=kde-apps/kdesdk-meta-26.04.3" [argument])