>>> Emerging : portage://media-libs/libheif-1.21.2:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-lang/python-3.15.0
             │           └─ file ─┤ 34.04 Mb  	 Python-3.15.0.tar.xz
             │                    │ 4.52 Kb  	 python-gentoo-patches-3.15.0.tar.xz
             │ download  portage://dev-lang/yasm-1.3.0-r2
             │           └─ file ─┤ 1.42 Mb  	 yasm-1.3.0.tar.gz
             │ download  portage://media-libs/giflib-6.1.3
             │           └─ file ─┤ 459.55 Kb  	 giflib-6.1.3.tar.gz
             │ download  portage://media-libs/kvazaar-2.3.2
             │           └─ file ─┤ 586.25 Kb  	 kvazaar-2.3.2.tar.gz
             │ download  portage://media-libs/libaom-3.14.1
             │           └─ file ─┤ 6.07 Mb  	 libaom-3.14.1.tar.gz
             │ download  portage://media-libs/libde265-1.1.3
             │           └─ file ─┤ 316.85 Kb  	 libde265-1.1.3.tar.gz
             │ download  portage://media-libs/libheif-1.21.2
             │           └─ file ─┤ 1.77 Mb  	 libheif-1.21.2.tar.gz
             │ download  portage://media-libs/libwebp-1.6.0
             │           └─ file ─┤ 4.10 Mb  	 libwebp-1.6.0.tar.gz
             │ download  portage://media-libs/x264-0.0.20240513-r1
             │           └─ file ─┤ 821.87 Kb  	 x264-0.0.20240513.tar.bz2
             │ download  portage://media-libs/x265-4.3
             │           └─ file ─┤ 1.96 Mb  	 x265_4.3.tar.gz

 └─step  2─┤ install   portage://media-libs/giflib-6.1.3
             │           └─ conf ─┤ USE = "-doc -static-libs"
             │                    │ SLOT = "0/7"
             │ install   portage://media-libs/libde265-1.1.3
             │           └─ conf ─┤ USE = "-debug -dec265 -sdl -tools"
             │                    │ CPU_FLAGS_X86 = "avx2 avx512f sse*"
             │ install   portage://media-libs/x264-0.0.20240513-r1
             │           └─ conf ─┤ USE = "interlaced -opencl -static-libs"
             │                    │ SLOT = "0/164"
             │ install   portage://media-libs/x265-4.3
             │           └─ conf ─┤ USE = "cet 10bit 12bit -numa -test -vmaf"
             │                    │ SLOT = "0/217"
             │ install   portage://dev-lang/yasm-1.3.0-r2
             │           └─ conf ─┤ USE = "nls"
             │ install   portage://dev-lang/python-3.15.0
             │           └─ conf ─┤ USE = "gdbm* ncurses pgo* readline sqlite* ssl ensurepip (-jit) -bluetooth -build% -debug -examples -libedit
             │                    │          -tail-call-interp -test -tk -valgrind -verify-sig"
             │                    │ LLVM_SLOT = "21%*"
             │                    │ SLOT = "3.15"

 └─step  3─┤ run       portage://media-libs/giflib-6.1.3
             │ run       portage://media-libs/libde265-1.1.3
             │ run       portage://media-libs/x264-0.0.20240513-r1
             │ run       portage://media-libs/x265-4.3

 └─step  4─┤ install   portage://media-libs/kvazaar-2.3.2
             │           └─ conf ─┤ USE = "-static-libs -test"
             │                    │ SLOT = "0/6"
             │ install   portage://media-libs/libaom-3.14.1
             │           └─ conf ─┤ USE = "examples -debug -doc -test"
             │                    │ CPU_FLAGS_X86 = "avx avx2 mmx* sse* sse2* sse3* sse4_1 sse4_2* ssse3*"
             │                    │ SLOT = "0/3"

 └─step  5─┤ install   portage://media-libs/libwebp-1.6.0
             │           └─ conf ─┤ USE = "gif* jpeg* opengl* png* tiff* -static-libs -swap-16bit-csp"
             │                    │ CPU_FLAGS_X86 = "avx2 sse2* sse4_1"
             │                    │ SLOT = "0/7"
             │ run       portage://media-libs/kvazaar-2.3.2
             │ run       portage://media-libs/libaom-3.14.1

 └─step  6─┤ run       portage://media-libs/libwebp-1.6.0

 └─step  7─┤ install   portage://media-libs/libheif-1.21.2
             │           └─ conf ─┤ USE = "jpeg* jpeg2k* threads* x264* x265* aom de265 kvazaar webp -dav1d -doc -ffmpeg -gdk-pixbuf -gui -openh264 -rav1e
             │                    │          -svt-av1 -test -test-full -tools"
             │                    │ SLOT = "0/1.21"

 └─step  8─┤ run     portage://media-libs/libheif-1.21.2

Total: 28 actions (10 downloads, 10 installs, 8 runs), grouped into 8 steps.
       51.50 Mb to be downloaded.