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

Calculating dependencies ... done!
Dependency resolution took 2.17 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libunibreak-8.0:0/8::gentoo  USE="-doc -man -static-libs -test" 1063 KiB
[ebuild  N     ] media-libs/alsa-topology-conf-1.2.5.1-r1::gentoo  USE="-verify-sig" 12 KiB
[ebuild  N     ] media-libs/alsa-ucm-conf-1.2.16.1::gentoo  USE="-verify-sig" 83 KiB
[ebuild  N     ] media-libs/giflib-6.1.3:0/7::gentoo  USE="-doc -static-libs" 460 KiB
[ebuild  N     ] sys-libs/mtdev-1.1.7::gentoo  295 KiB
[ebuild  N     ] media-libs/x264-0.0.20240513-r1:0/164::gentoo  USE="interlaced -opencl -static-libs" 822 KiB
[ebuild   R    ] sys-libs/zlib-1.3.2-r1:0/1::gentoo  USE="minizip* -static-libs -verify-sig" 1290 KiB
[ebuild  N     ] virtual/minizip-1.3.1:0/1::gentoo  USE="-static-libs" 0 KiB
[ebuild  N     ] media-libs/xvid-1.3.7-r2::gentoo  USE="-examples" 683 KiB
[ebuild  N     ] dev-cpp/yaml-cpp-0.9.0-r1:0/0.9::gentoo  USE="-test" 1032 KiB
[ebuild  N     ] kde-frameworks/extra-cmake-modules-6.31.0::gentoo  USE="-doc -test" 339 KiB
[ebuild  N     ] media-libs/assimp-6.0.2:0/6::gentoo  USE="-collada -doc -samples -test" 148658 KiB
[ebuild  N     ] net-libs/libssh-0.12.2:0/4::gentoo  USE="sftp zlib -debug -examples -fido2 -gssapi -mbedtls -pcap -server -static-libs -test -verify-sig" 742 KiB
[ebuild  N     ] media-libs/x265-4.3:0/217::gentoo  USE="10bit 12bit cet -numa -test -vmaf" 2005 KiB
[ebuild  N     ] dev-libs/double-conversion-3.4.0:0/3::gentoo  USE="-test" 6871 KiB
[ebuild  N     ] dev-libs/md4c-0.6.0::gentoo  USE="md2html -test" 263 KiB
[ebuild  N     ] media-libs/alsa-lib-1.2.16.1::gentoo  USE="python -debug -doc -verify-sig" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" 1104 KiB
[ebuild  N     ] x11-libs/xcb-util-renderutil-0.3.10::gentoo  256 KiB
[ebuild  N     ] x11-libs/xcb-util-wm-0.4.2::gentoo  279 KiB
[ebuild  N     ] x11-libs/xcb-util-0.4.1::gentoo  262 KiB
[ebuild  N     ] x11-libs/xcb-util-image-0.4.1::gentoo  283 KiB
[ebuild  N     ] x11-libs/libXv-1.0.13::gentoo  USE="-doc" 275 KiB
[ebuild  N     ] x11-libs/xcb-util-cursor-0.1.6::gentoo  267 KiB
[ebuild  N     ] media-libs/dav1d-1.5.4:0/7::gentoo  USE="8bit 10bit asm -test -xxhash" 1015 KiB
[ebuild  N     ] dev-libs/libevdev-1.13.7::gentoo  USE="-doc -test" 462 KiB
[ebuild  N     ] x11-misc/xkeyboard-config-2.48::gentoo  USE="-test" 931 KiB
[ebuild  N     ] media-libs/libwebp-1.6.0:0/7::gentoo  USE="gif jpeg opengl png tiff -static-libs -swap-16bit-csp" CPU_FLAGS_X86="avx2 sse2 sse4_1" 4196 KiB
[ebuild  N     ] media-gfx/imagemagick-7.1.2.32:0/7.1.2-18::gentoo  USE="X bzip2 cxx fontconfig hdri jpeg jpeg2k openmp png tiff truetype zlib -corefonts -djvu -fftw -fpx -graphviz -hardened -heif -jbig -jpegxl -lcms -lqr -lzma -opencl -openexr -pango -perl -postscript -q8 -q32 -raw -static-libs -svg -test -verify-sig -webp -wmf -xml -zip" PERL_FEATURES="ithreads (-debug) -quadmath" 9939 KiB
[ebuild  N     ] media-libs/libass-0.17.5-r1:0/9::gentoo  USE="fontconfig libunibreak -test -verify-sig" 450 KiB
[ebuild  N     ] media-video/ffmpeg-8.1.3:0/60.62.62::gentoo  USE="X alsa bzip2 cairo dav1d drm fontconfig gmp gnutls gpl jpeg2k libass opengl openssl ssh truetype x264 x265 xml xvid zlib -amf -amr -amrenc (-appkit) -bluray -bs2b -cdio -chromaprint -chromium -codec2 -cuda-clang -doc -dvd -fdk -flite -frei0r -fribidi -gcrypt -gme -gsm -iec61883 -ieee1394 -jack -jpegxl -kvazaar -ladspa -lame -lcms -libaom -libaribb24 -libcaca -libilbc -liblc3 -libplacebo -librtmp -libsoxr -lv2 -lzma -modplug -nvenc -ocr -openal -opencl -opencolorio -openh264 -openmpt -opus -pulseaudio -qrcode -qsv -quirc -rabbitmq -rav1e -rist -rubberband -samba -sdl -snappy -sndio -soc -sofa -speex -srt -svg -svt-av1 -theora -twolame -v4l -vaapi -vdpau -verify-sig -vidstab -vmaf -vorbis -vpx -vulkan -webp -zeromq -zimg -zvbi" 11458 KiB
[ebuild  N     ] x11-libs/libxkbcommon-1.13.2::gentoo  USE="X -doc -static-libs -test -tools -wayland" 1215 KiB
[ebuild  N     ] dev-libs/libinput-1.32.0:0/10::gentoo  USE="-doc -lua -test" INPUT_DEVICES="-wacom" LUA_SINGLE_TARGET="lua5-4" 944 KiB
[ebuild  N     ] dev-qt/qtbase-6.11.2-r2:6/6.11.2::gentoo  USE="X concurrent dbus gui icu libinput network nls opengl sql sqlite ssl udev widgets xml (zstd) -accessibility -brotli -cups -custom-cflags -eglfs -evdev -gles2-only -gssapi -gtk -io-uring (-journald) -libproxy -mysql -oci8 -odbc -postgres -renderdoc -sctp -syslog -test -tslib -vulkan -wayland" 49398 KiB
[ebuild  N     ] dev-qt/qttools-6.11.2:6/6.11.2::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" 9992 KiB
[ebuild  N     ] dev-qt/qttranslations-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags" 1652 KiB
[ebuild  N     ] dev-qt/qtshadertools-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags -test" 1189 KiB
[ebuild  N     ] dev-qt/qtsvg-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags -test" 2287 KiB
[ebuild  N     ] dev-qt/qtimageformats-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags -mng -test" 2003 KiB
[ebuild  N     ] dev-qt/qtdeclarative-6.11.2-r1:6/6.11.2::gentoo  USE="jit network opengl sql ssl widgets -accessibility -custom-cflags -qmlls -svg -vulkan -wayland" 37872 KiB
[ebuild  N     ] dev-qt/qtquicktimeline-6.11.2:6/6.11.2::gentoo  USE="-custom-cflags -test" 96 KiB
[ebuild  N     ] dev-qt/qtquick3d-6.11.2:6/6.11.2::gentoo  USE="opengl -custom-cflags -test -vulkan" 68309 KiB
[ebuild  N     ] dev-qt/qtmultimedia-6.11.2:6/6.11.2::gentoo  USE="X alsa dbus ffmpeg opengl qml v4l -custom-cflags -eglfs -gstreamer -pipewire -pulseaudio -test -vaapi -vulkan -wayland" 10015 KiB
[ebuild  N     ] media-gfx/photoqt-5.4.1::gentoo  USE="extensions imagemagick -barcode -chromecast -devil -exif -ffmpegthumbnailer -geolocation -graphicsmagick -lcms -mpv -pdf -raw -test -vips -wayland" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13" 6557 KiB
[ebuild  N     ] media-plugins/photoqt-extensions-5.4.1::gentoo  USE="-geolocation -histogram" 99 KiB

Total: 44 packages (43 new, 1 reinstall), Size of downloads: 387403 KiB

The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by media-plugins/photoqt-extensions-5.4.1::gentoo
# required by =media-plugins/photoqt-extensions-5.4.1 (argument)
>=media-gfx/photoqt-5.4.1 extensions
# required by media-gfx/photoqt-5.4.1::gentoo
# required by media-plugins/photoqt-extensions-5.4.1::gentoo
# required by =media-plugins/photoqt-extensions-5.4.1 (argument)
>=dev-qt/qtbase-6.11.2-r2 icu
# required by media-gfx/photoqt-5.4.1::gentoo
# required by media-plugins/photoqt-extensions-5.4.1::gentoo
# required by =media-plugins/photoqt-extensions-5.4.1 (argument)
>=dev-qt/qtmultimedia-6.11.2 qml
# required by media-gfx/photoqt-5.4.1::gentoo[-graphicsmagick,imagemagick]
# required by media-plugins/photoqt-extensions-5.4.1::gentoo
# required by =media-plugins/photoqt-extensions-5.4.1 (argument)
>=media-gfx/imagemagick-7.1.2.32 hdri
# required by virtual/minizip-1.3.1::gentoo[-static-libs]
# required by media-libs/assimp-6.0.2::gentoo
# required by dev-qt/qtquick3d-6.11.2::gentoo
# required by dev-qt/qtmultimedia-6.11.2::gentoo[qml]
# required by media-gfx/photoqt-5.4.1::gentoo
# required by media-plugins/photoqt-extensions-5.4.1::gentoo
# required by =media-plugins/photoqt-extensions-5.4.1 (argument)
>=sys-libs/zlib-1.3.2-r1 minizip

 * 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
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