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

Calculating dependencies ...

!!! Problem resolving dependencies for =sci-libs/linux-gpib-4.3.6-r200
 done!
Dependency resolution took 0.82 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "=sci-libs/linux-gpib-4.3.6-r200" has unmet requirements.
- sci-libs/linux-gpib-4.3.6-r200::gentoo USE="modules python strip -debug -dist-kernel -doc -firmware -guile -modules-compress -modules-sign -pcmcia -perl (-php) -static -tcl" GUILE_SINGLE_TARGET="3-0 -2-2" PYTHON_TARGETS="-python3_12 -python3_13"

  The following REQUIRED_USE flag constraints are unsatisfied:
    python? ( any-of ( python_targets_python3_12 python_targets_python3_13 ) )

  The above constraints are a subset of the following complete expression:
    guile? ( exactly-one-of ( guile_single_target_2-2 guile_single_target_3-0 ) ) python? ( any-of ( python_targets_python3_12 python_targets_python3_13 ) )