Calculating dependencies  
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... done!
Dependency resolution took 8.09 s (backtrack: 0/20).


emerge: there are no ebuilds built with USE flags to satisfy "virtual/zlib:=[static-libs(+)]".
!!! One of the following packages is required to complete your request:
- virtual/zlib-1.3.1-r1::gentoo (Change USE: +static-libs)
(dependency required by "app-emulation/qemu-10.1.2::gentoo[static-user]" [ebuild])
(dependency required by "@selected" [set])
(dependency required by "@world" [argument])