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

Calculating dependencies ... done!
Dependency resolution took 1.07 s (backtrack: 0/20).

[ebuild  N     ] dev-build/b2-5.5.3::gentoo  USE="-examples" 1198 KiB
[ebuild  N     ] dev-libs/libatomic_ops-7.10.0::gentoo  531 KiB
[ebuild  N     ] dev-libs/boost-1.91.0-r2:0/1.91.0::gentoo  USE="bzip2 context nls python stacktrace zlib -debug -doc -icu -lzma -mpi -numpy -test -test-full -tools -zstd" PYTHON_TARGETS="python3_14 -python3_12 -python3_13" 199785 KiB
[ebuild  N     ] dev-libs/boehm-gc-8.2.12::gentoo  USE="large threads -cxx -static-libs" 1204 KiB
[ebuild  N     ] dev-embedded/sdcc-4.3.0-r1::gentoo  USE="boehm-gc sdcpp -device-lib -doc -ds390 -ds400 -ez80-z80 -hc08 -mcs51 -mos65c02 -mos6502 -non-free -packihx -pdk13 -pdk14 -pdk15 -pdk16 -pic14 -pic16 -r2k -r2ka -r3ka -s08 -sdcdb -sm83 -stm8 -tlcs90 -ucsim -z80 -z80n -z180" 45603 KiB

Total: 5 packages (5 new), Size of downloads: 248319 KiB