Packages with the cups use flag

Global definition: Add support for CUPS (Common Unix Printing System).

app-emulation / crossover-bin : Commercial version of app-emulation/wine with paid support.

app-emulation / wine-any : Free implementation of Windows(tm) on Unix, with optional external patchsets

app-emulation / wine-d3d9 : Free implementation of Windows(tm) on Unix, with Gallium Nine patchset

app-emulation / wine-staging : Free implementation of Windows(tm) on Unix, with Wine-Staging patchset

app-emulation / wine-vanilla : Free implementation of Windows(tm) on Unix, without external patchsets

app-office / abiword : Fully featured yet light and fast cross platform word processor

app-office / libreoffice : A full office productivity suite

app-office / lyx : WYSIWYM frontend for LaTeX, DocBook, etc.

app-text / ghostscript-gpl : Interpreter for the PostScript language and PDF

app-text / qpdfview : A tabbed document viewer

app-text / xpdf : The PDF viewer and tools

dev-db / sqlitestudio : Powerful cross-platform SQLite database manager

dev-java / icedtea : A harness to build OpenJDK using Free Software build tools and dependencies

dev-java / icedtea-bin : A Gentoo-made binary build of the IcedTea JDK

dev-java / openjdk : Open source implementation of the Java programming language

dev-java / openjdk-bin : Prebuilt Java JDK binaries provided by AdoptOpenJDK

dev-java / openjdk-jre-bin : Prebuilt Java JRE binaries provided by AdoptOpenJDK

dev-java / oracle-jdk-bin : Oracle's Java SE Development Kit

dev-java / oracle-jre-bin : Oracle's Java SE Runtime Environment

dev-perl / Gtk2-Ex-PrintDialog : a simple, pure Perl dialog for printing PostScript data in GTK+ applications

dev-qt / qtprintsupport : Printing support library for the Qt5 framework

dev-util / electron : Cross platform application development framework based on web technologies

gnome-base / gnome : Meta package for GNOME 3, merge this package to install

gnome-base / gnome-control-center : GNOME's main interface to configure various aspects of the desktop

gnome-base / gnome-core-apps : Sub-meta package for the core applications integrated with GNOME 3

gnome-base / gnome-core-libs : Sub-meta package for the core libraries of GNOME 3

gnome-base / gnome-light : Meta package for GNOME-Light, merge this package to install

gnome-base / gnome-settings-daemon : Gnome Settings Daemon

gnome-extra / cinnamon-control-center : Cinnamons's main interface to configure various aspects of the desktop

gnome-extra / cinnamon-settings-daemon : Cinnamon's settings daemon

gnustep-base / gnustep-gui : Library of GUI classes written in Obj-C

kde-apps / kdeutils-meta : kdeutils - merge this to pull in all kdeutils-derived packages

media-gfx / darktable : A virtual lighttable and darkroom for photographers

media-libs / oyranos : Colour management system allowing to share settings across apps and services

net-analyzer / netdata : Linux real time system monitoring, done right!

net-fs / samba : Samba Suite Version 4

net-misc / freerdp : Free implementation of the Remote Desktop Protocol

net-print / adobeps : Adobe PostScript drivers for Windows for use with CUPS

net-print / apsfilter : Apsfilter Prints So Fine, It Leads To Extraordinary Results

net-print / gutenprint : Ghostscript and cups printer drivers

net-print / mtink : mtink is a status monitor and inkjet cartridge changer for some Epson printers

net-wireless / bluez : Bluetooth Tools and System Daemons for Linux

www-client / chromium : Open-source version of Google Chrome web browser

x11-libs / gtk+ : Gimp ToolKit +

x11-wm / xpra : X Persistent Remote Apps (xpra) and Partitioning WM (parti) based on wimpiggy