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

Calculating dependencies ... done!
Dependency resolution took 1.09 s (backtrack: 0/20).

[ebuild  N     ] virtual/linux-sources-3-r9::gentoo  USE="-firmware" 0 KiB
[ebuild  N     ] dev-util/pahole-1.32::gentoo  USE="-debug -verify-sig" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" 2427 KiB
[ebuild  N     ] media-video/v4l2loopback-0.15.3::gentoo  USE="strip -dist-kernel -examples -modules-compress -modules-sign" 88 KiB

Total: 3 packages (3 new), Size of downloads: 2514 KiB