portage-ng --merge
>>> Emerging : portage://media-libs/mesa-26.1.8:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/mesa-26.1.8
│ └─ file ─┤ 74.22 Mb mesa-26.1.8.tar.xz
└─step 2─┤ update portage://media-libs/mesa-26.1.8 (replaces pkg://media-libs/mesa-25.1.9)
│ └─ conf ─┤ USE = "X* (opengl) proprietary-codecs zstd -llvm* -debug -lm-sensors -opencl -sysprof% -test -unwind -vaapi -valgrind
│ │ -vulkan -wayland"
│ │ CPU_FLAGS_X86 = "sse2*"
│ │ LLVM_SLOT = "22%* -18 -19 -20* -21%"
│ │ VIDEO_CARDS = "vmware -asahi -d3d12 -i915% -intel -lavapipe -nouveau -nvk -r300 -r600 -radeon -radeonsi -virgl -zink"
└─step 3─┤ run portage://media-libs/mesa-26.1.8
Total: 3 actions (1 download, 1 update, 1 run), grouped into 3 steps.
74.22 Mb to be downloaded.