>>> Emerging : portage://media-gfx/brscan4-0.4.11.1-r1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ license portage://media-gfx/brscan4-0.4.11.1-r1

 └─step  2─┤ download  portage://app-alternatives/cpio-0
             │ download  portage://app-arch/cpio-2.15
             │           └─ file ─┤ 1.57 Mb  	 cpio-2.15.tar.bz2
             │ download  portage://app-arch/rpm2targz-2021.03.16
             │           └─ file ─┤ 6.35 Kb  	 rpm2targz-2021.03.16.tar.xz
             │ download  portage://app-crypt/gpgme-2.2.0
             │           └─ file ─┤ 1.36 Mb  	 gpgme-2.2.0.tar.bz2
             │ download  portage://app-text/poppler-26.09.0
             │           └─ file ─┤ 1.95 Mb  	 poppler-26.09.0.tar.xz
             │ download  portage://dev-cpp/gpgmepp-2.2.0
             │           └─ file ─┤ 121.04 Kb  	 gpgmepp-2.2.0.tar.xz
             │ download  portage://dev-lang/python-3.15.0
             │           └─ file ─┤ 34.04 Mb  	 Python-3.15.0.tar.xz
             │                    │ 4.52 Kb  	 python-gentoo-patches-3.15.0.tar.xz
             │ download  portage://dev-libs/libusb-1.0.30
             │           └─ file ─┤ 640.73 Kb  	 libusb-1.0.30.tar.bz2
             │ download  portage://dev-libs/libusb-compat-0.1.9
             │           └─ file ─┤ 321.19 Kb  	 libusb-compat-0.1.9.tar.bz2
             │ download  portage://media-gfx/brscan4-0.4.11.1-r1
             │           └─ file ─┤ 116.23 Kb  	 brscan4-0.4.11-1.x86_64.rpm
             │ download  portage://media-gfx/sane-backends-1.3.1-r2
             │           └─ file ─┤ 4.21 Mb  	 backends-1.3.1.tar.bz2

Total: 12 actions (1 license, 11 downloads), grouped into 2 steps.
       44.30 Mb to be downloaded.



>>> Assumptions taken during proving & planning:

  License acceptance (1 package):
  Add to /etc/portage/package.license:
    ==media-gfx/brscan4-0.4.11.1-r1 Brother


Error The proof for your build plan contains domain assumptions. Please verify:


>>> Domain assumptions

- Other: 
  unreachable(portage://virtual/libusb-0-r2:install,grouped_package_dependency(no,dev-libs,libusb-compat,[package_dependency(run,no,dev-libs,libusb-compat,greaterequal,version([0,1,5],,4,0,[],2,0.1.5-r2),[],[use(optenable(abi_x86_32),negative),use(optenable(abi_x86_64),negative),use(optenable(abi_x86_x32),negative),use(optenable(abi_mips_n32),negative),use(optenable(abi_mips_n64),negative),use(optenable(abi_mips_o32),negative),use(optenable(abi_s390_32),negative),use(optenable(abi_s390_64),negative)])]):run)