[        : I - package is installed with flag     ]
[ Colors : set, unset                             ]
 * Found these USE flags for app-emulation/qemu-2.1.0-r1:
 U I
 - - accessibility                     : Adds support for braille displays using brltty
 + + aio                               : Enables support for Linux's Async IO
 + + alsa                              : Enable alsa output for sound emulation
 - - bluetooth                         : Enable Bluetooth Support
 + + caps                              : Use Linux capabilities library to control privilege
 + + curl                              : Support ISOs / -cdrom directives vis HTTP or HTTPS.
 - - debug                             : Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
 + + fdt                               : Enables firmware device tree support
 + + filecaps                          : Use Linux file capabilities to control privilege rather than set*id
 - - gtk                               : Add support for x11-libs/gtk+ (The GIMP Toolkit)
 - - infiniband                        : Enable Infiniband RDMA transport support
 - - iscsi                             : Enable direct iSCSI support via net-libs/libiscsi instead of indirectly via the Linux block layer that sys-block/open-iscsi does.
 + + jpeg                              : Enable jpeg image support for the VNC console server
 - - lzo                               : Enable support for lzo compression
 + + ncurses                           : Enable the ncurses-based console
 - - nfs                               : Enable NFS support
 - - nls                               : Add Native Language Support (using gettext - GNU locale utilities)
 - - numa                              : Enable NUMA support
 + + opengl                            : Add support for OpenGL (3D graphics)
 + + pin-upstream-blobs                : Pin the versions of BIOS firmware to the version included in the upstream release. This is needed to sanely support migration/suspend/resume/snapshotting/etc... of instances. When the blobs are different, random corruption/bugs/crashes/etc... may be observed.
 + + png                               : Enable png image support for the VNC console server
 - - pulseaudio                        : Enable pulseaudio output for sound emulation
 - - python                            : Add optional support/bindings for the Python language
 + + python_targets_python2_7          : Build with Python 2.7
 - - qemu_softmmu_targets_aarch64      : ARM64 system emulation target
 - - qemu_softmmu_targets_alpha        : system emulation target
 + + qemu_softmmu_targets_arm          : system emulation target
 - - qemu_softmmu_targets_cris         : system emulation target
 - - qemu_softmmu_targets_i386         : system emulation target
 - - qemu_softmmu_targets_lm32         : LatticeMico32 system emulation target
 - - qemu_softmmu_targets_m68k         : system emulation target
 - - qemu_softmmu_targets_microblaze   : system emulation target
 - - qemu_softmmu_targets_microblazeel : system emulation target
 + + qemu_softmmu_targets_mips         : system emulation target
 + + qemu_softmmu_targets_mips64       : system emulation target
 - - qemu_softmmu_targets_mips64el     : system emulation target
 - - qemu_softmmu_targets_mipsel       : system emulation target
 - - qemu_softmmu_targets_moxie        : moxielogic system emulation target
 - - qemu_softmmu_targets_or32         : OpenRISC system emulation target
 - - qemu_softmmu_targets_ppc          : system emulation target
 - - qemu_softmmu_targets_ppc64        : system emulation target
 - - qemu_softmmu_targets_ppcemb       : system emulation target
 - - qemu_softmmu_targets_s390x        : system emulation target
 - - qemu_softmmu_targets_sh4          : system emulation target
 - - qemu_softmmu_targets_sh4eb        : system emulation target
 - - qemu_softmmu_targets_sparc        : system emulation target
 - - qemu_softmmu_targets_sparc64      : system emulation target
 - - qemu_user_targets_unicore32       : userspace emulation target
 - - qemu_user_targets_x86_64          : userspace emulation target
 - - rbd                               : Enable rados block device backend support, see http://ceph.newdream.net/wiki/QEMU-RBD
 - - sasl                              : Add support for the Simple Authentication and Security Layer
 + + sdl                               : Enable the SDL-based console
 + + seccomp                           : Utilize sys-libs/libseccomp to enable kernel filtering of system calls to prevent malicious guests from doing damage.
 - - smartcard                         : Enable smartcard support
 - - snappy                            : Enable support for snappy compression
 - - spice                             : Enable Spice protocol support via app-emulation/spice
 - - ssh                               : Enable SSH based block device support via net-libs/libssh2
 - - static                            : Enables both 'static-softmmu' and 'static-user'
 - - static-softmmu                    : Builds the Software MMU (system) targets as static binaries
 - - static-user                       : Build the User targets as static binaries
 - - systemtap                         : Enable SystemTAP/DTrace tracing
 - - tci                               : Enable the TCG Interpreter which can speed up or slowdown workloads depending on the host and guest CPUs being emulated. In the future it will be a runtime option but for now its compile time.
 - - test                              : Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore
 + + threads                           : Add threads support for various packages. Usually pthreads
 + + tls                               : Enable TLS support for the VNC console server. For 1.4 and newer this also enables WebSocket support. For 2.0 and newer this also enables disk quorum support.
 - - usb                               : Enable USB passthrough via dev-libs/libusb
 - - usbredir                          : Use sys-apps/usbredir to redirect USB devices to another machine over TCP
 + + uuid                              : Enable UUID support in the vdi block driver
 - - vde                               : Enable VDE-based networking
 + + vhost-net                         : Enable accelerated networking using vhost-net, see http://www.linux-kvm.org/page/VhostNet
 - - virtfs                            : Enable VirtFS via virtio-9p-pci / fsdev. See http://wiki.qemu.org/Documentation/9psetup
 + + vnc                               : Enable VNC (remote desktop viewer) support
 + + xattr                             : Add support for getting and setting POSIX extended attributes, through sys-apps/attr. Requisite for the virtfs backend.
 - - xen                               : Enables support for Xen backends
 - - xfs                               : Support xfsctl() notification and syncing for XFS backed virtual disks.