>>> Emerging : portage://sys-power/apcupsd-3.14.14-r4:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ useflag portage://sys-apps/util-linux-2.42.3 (tty-helpers)

 └─step  2─┤ 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://net-mail/mailutils-3.21
             │           └─ file ─┤ 3.22 Mb  	 mailutils-3.21.tar.xz
             │ download  portage://sys-apps/util-linux-2.42.3
             │           └─ file ─┤ 10.22 Mb  	 util-linux-2.42.3.tar.xz
             │ download  portage://sys-power/apcupsd-3.14.14-r4
             │           └─ file ─┤ 1.76 Mb  	 apcupsd-3.14.14.tar.gz
             │ install   portage://virtual/libusb-0-r2

 └─step  3─┤ install   portage://dev-libs/libusb-1.0.30
             │           └─ conf ─┤ USE = "-debug -doc -examples -static-libs -test -udev -verify-sig"
             │                    │ SLOT = "1"

 └─step  4─┤ install   portage://net-mail/mailutils-3.21
             │           └─ conf ─┤ USE = "gdbm* nls pam python* ssl threads* clients -berkdb* -bidi -emacs -guile -kerberos -kyotocabinet -ldap -mysql
             │                    │          -postgres -sasl -servers -static-libs -tcpd -test -tokyocabinet"
             │                    │ GUILE_SINGLE_TARGET = "3-0 -2-2"
             │                    │ PYTHON_SINGLE_TARGET = "python3_14 -python3_12 -python3_13"
             │ update    portage://sys-apps/util-linux-2.42.3 (USE modified)
             │           └─ conf ─┤ USE = "ncurses nls pam python* readline (unicode) cramfs hardlink logger su suid (-rtas) -audit -build -caps -cryptsetup
             │                    │          -fdformat -kill -magic -slang -static-libs -test tty-helpers -udev -uuidd -verify-sig"
             │                    │ PYTHON_TARGETS = "python3_14 -python3_12 -python3_13*"
             │ run       portage://dev-libs/libusb-1.0.30

 └─step  5─┤ run       portage://net-mail/mailutils-3.21

 └─step  6─┤ install   portage://virtual/libusb-1-r2
             │           └─ conf ─┤ USE = "-udev"
             │                    │ SLOT = "1"

 └─step  7─┤ install   portage://virtual/mailx-4
             │ run       portage://virtual/libusb-1-r2

 └─step  8─┤ run       portage://virtual/mailx-4

 └─step  9─┤ install   portage://dev-libs/libusb-compat-0.1.9
             │           └─ conf ─┤ USE = "-debug -examples"

 └─step 10─┤ run       portage://dev-libs/libusb-compat-0.1.9

 └─step 11─┤ run       portage://virtual/libusb-0-r2

 └─step 12─┤ install   portage://sys-power/apcupsd-3.14.14-r4
             │           └─ conf ─┤ USE = "modbus usb -cgi -snmp"

 └─step 13─┤ run     portage://sys-power/apcupsd-3.14.14-r4

Total: 21 actions (1 useflag, 5 downloads, 7 installs, 1 update, 7 runs), grouped into 13 steps.
       16.14 Mb to be downloaded.



>>> Assumptions taken during proving & planning:

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    sys-apps/util-linux tty-helpers


>>> Blockers added during proving & planning:

  [blocks B] !>=sys-apps/shadow-4.7-r2 (soft blocker, phase: run, required by: portage://sys-apps/util-linux-2.42.3)


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)