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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/gf2x-1.3.0-r1:0/3::gentoo  USE="-custom-tune -fft -static-libs" CPU_FLAGS_X86="pclmul sse2 sse3 sse4_1 ssse3" 711 KiB
[ebuild  N     ] sci-mathematics/pari-2.17.4:0/9::gentoo  USE="X threads -data -doc -examples -fltk -test" 5209 KiB
[ebuild  N     ] dev-libs/ntl-11.6.0:0/45::gentoo  USE="threads -doc" 2539 KiB
[ebuild  N     ] sci-mathematics/eclib-20250627:0/14::gentoo  USE="-boost -flint -minimal -test" 951 KiB

Total: 4 packages (4 new), Size of downloads: 9409 KiB