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

Calculating dependencies ...

!!! Problem resolving dependencies for =net-analyzer/zabbix-6.0.48-r1
 done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! The ebuild selected to satisfy "=net-analyzer/zabbix-6.0.48-r1" has unmet requirements.
- net-analyzer/zabbix-6.0.48-r1::gentoo USE="agent2 ipv6 openssl postgres proxy sqlite ssh -agent -curl -frontend -gnutls -java -ldap -libxml2 -mysql -odbc -openipmi -oracle (-selinux) -server -snmp -static"

  The following REQUIRED_USE flag constraints are unsatisfied:
    proxy? ( exactly-one-of ( mysql oracle postgres sqlite ) )

  The above constraints are a subset of the following complete expression:
    any-of ( agent agent2 frontend proxy server ) at-most-one-of ( gnutls openssl ) agent2? ( !gnutls ) proxy? ( exactly-one-of ( mysql oracle postgres sqlite ) ) server? ( exactly-one-of ( mysql oracle postgres ) !sqlite ) static? ( !oracle !snmp )