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

Calculating dependencies ...

!!! Problem resolving dependencies for =dev-libs/xapian-bindings-1.4.29-r1
 done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "=dev-libs/xapian-bindings-1.4.29-r1" has unmet requirements.
- dev-libs/xapian-bindings-1.4.29-r1::gentoo USE="python -java -lua -perl -php -ruby -tcl" LUA_TARGETS="lua5-1 -lua5-3 -lua5-4 -luajit" PERL_FEATURES="ithreads (-debug) -quadmath" PHP_TARGETS="php8-3 -php8-2" PYTHON_TARGETS="-python3_12 -python3_13" RUBY_TARGETS="ruby32"

  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:
    any-of ( java lua perl php python ruby tcl ) lua? ( any-of ( lua_targets_luajit lua_targets_lua5-1 lua_targets_lua5-3 lua_targets_lua5-4 ) ) python? ( any-of ( python_targets_python3_12 python_targets_python3_13 ) ) ruby? ( any-of ( ruby_targets_ruby32 ) ) php? ( any-of ( php_targets_php8-2 php_targets_php8-3 ) )