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

Calculating dependencies ... done!
Dependency resolution took 2.65 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libaio-0.3.113_p8::gentoo  USE="-static-libs -test" 74 KiB
[ebuild  N     ] dev-lisp/asdf-3.3.5-r1:0/3.3.5-r1::gentoo  USE="-doc -test" 509 KiB
[ebuild  N     ] dev-lisp/uiop-3.3.5::gentoo  102 KiB
[ebuild  N     ] x11-apps/xprop-1.2.8::gentoo  144 KiB
[ebuild  N     ] dev-libs/libptytty-2.0-r1::gentoo  45 KiB
[ebuild  N     ] app-misc/rlwrap-0.48::gentoo  USE="-debug" 346 KiB
[ebuild  N     ] dev-debug/strace-7.2::gentoo  USE="aio ncurses -elfutils -perl (-selinux) -static -test -unwind -verify-sig" 2745 KiB
[ebuild  N     ] dev-lisp/sbcl-2.6.9:0/2.6.9::gentoo  USE="threads unicode zstd -debug -doc -source -system-bootstrap" 21241 KiB
[ebuild  N     ] virtual/commonlisp-0-r1::gentoo  0 KiB
[ebuild  N     ] x11-apps/xset-1.2.6::gentoo  143 KiB
[ebuild  N     ] sci-visualization/gnuplot-6.0.5::gentoo  USE="X cairo gd readline -amos (-aqua) -bitmap -doc -examples -gpic -latex -libcaca -libcerf -lua -metafont -metapost -qt6 -regis -tgif -wxwidgets" LUA_SINGLE_TARGET="lua5-1 -lua5-3 -lua5-4" 7400 KiB
[ebuild   R    ] app-text/xmlto-0.0.28-r11::gentoo  USE="text* -latex" 125 KiB
[ebuild  N     ] x11-misc/xdg-utils-1.2.1-r11::gentoo  USE="X dbus -doc -gnome -perl -plasma" 287 KiB
[ebuild  N     ] sci-mathematics/maxima-5.50.0::gentoo  USE="X gmp nls sbcl -clisp (-clozurecl) -clozurecl64 (-cmucl) -ecl -emacs -gcl -gui -test -vtk" L10N="-de -es -pt -pt-BR" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13" 45407 KiB

Total: 14 packages (13 new, 1 reinstall), Size of downloads: 78563 KiB

The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by x11-misc/xdg-utils-1.2.1-r11::gentoo
# required by sci-mathematics/maxima-5.50.0::gentoo[X]
# required by =sci-mathematics/maxima-5.50.0 (argument)
>=app-text/xmlto-0.0.28-r11 text