# emerge -1at "=gpgme-1.8.0-r2"                                                                                                                                     

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

Calculating dependencies... done!
[ebuild   R    ] app-crypt/gpgme-1.8.0-r2  USE="(-cxx*) (-qt5*)" 

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

app-crypt/gpgme:1

  (app-crypt/gpgme-1.8.0-r2:1/11::gentoo, ebuild scheduled for merge) pulled in by
    =app-crypt/gpgme-1.8.0-r2 (Argument)

  (app-crypt/gpgme-1.8.0-r2:1/11::gentoo, installed) pulled in by
    >=app-crypt/gpgme-1.7.1[cxx,qt5] required by (kde-apps/libkleo-16.12.3-r1:5/5::gentoo, installed)
                            ^^^ ^^^                                                                                                                         
    >=app-crypt/gpgme-1.7.1[cxx,qt5] required by (kde-apps/kleopatra-16.12.3:5/5::gentoo, installed)
                            ^^^ ^^^                                                                                                                        
    >=app-crypt/gpgme-1.7.1[cxx,qt5] required by (kde-apps/kmail-16.12.3:5/5::gentoo, installed)
                            ^^^ ^^^                                                                                                                    
    >=app-crypt/gpgme-1.7.1[cxx,qt5] required by (kde-apps/messagelib-16.12.3:5/5::gentoo, installed)
                            ^^^ ^^^                                                                                                                         
    >=app-crypt/gpgme-1.7.1[cxx,qt5] required by (kde-apps/kaddressbook-16.12.3:5/5::gentoo, installed)
                            ^^^ ^^^                                                                                                                           


It might be possible to solve this slot collision
by applying all of the following changes:
   - app-crypt/gpgme-1.8.0-r2 (Change USE: +qt5 +cxx)