On my system where I have Avahi installed I can't install KDE 4.2 since it depends on kdnssd which requiers mDNSResponder which is blocked by Avahi. As far as I can see kdnssd is used only in one of the KDE Control Center plugins and could be missed so it is not a requirement. Reproducible: Always Steps to Reproduce: 1. have avahi-0.6.24 installed 2. run "emerge -av kdebase-startkde" Actual Results: I get this output telling me that emerge can't continue: These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild N ] net-misc/mDNSResponder-107.6-r5 USE="-debug -doc -java" 0 kB [ebuild N ] dev-libs/liboil-0.3.15 USE="-doc" 803 kB [ebuild N ] media-libs/gst-plugins-base-0.10.21 USE="nls -debug" 1,936 kB [ebuild N ] kde-base/qimageblitz-0.0.4 USE="3dnow mmx sse sse2 (-altivec) -debug" 55 kB [ebuild N ] kde-base/automoc-0.9.88 9 kB [ebuild N ] dev-libs/soprano-2.2.1 USE="clucene sesame2 -debug -doc -redland" 1,805 kB [ebuild N ] app-misc/strigi-0.6.4 USE="clucene dbus exif inotify qt4 -debug -fam -hyperestraier -log -test" 875 kB [ebuild N ] media-sound/phonon-4.3.0 USE="gstreamer xcb xine -debug" 553 kB [ebuild N ] app-office/akonadi-server-1.1.1 USE="mysql" 132 kB [ebuild N ] kde-base/kdelibs-4.2.0-r1 USE="3dnow acl alsa bzip2 mmx nls opengl semantic-desktop spell sse sse2 ssl (-altivec) -bindist -debug -doc -fam -htmlhandbook -jpeg2k -kdeprefix -kerberos -openexr -test -zeroconf" 9,798 kB [ebuild N ] kde-base/kdepimlibs-4.2.0 USE="sasl -debug -htmlhandbook -kdeprefix -ldap -test" 1,552 kB [ebuild N ] kde-base/kdebase-data-4.2.0 USE="-kdeprefix" 68,264 kB [ebuild N ] kde-base/libkworkspace-4.2.0 USE="-debug -kdeprefix" 49,536 kB [ebuild N ] kde-base/ksplash-4.2.0 USE="3dnow mmx sse sse2 xinerama (-altivec) -debug -kdeprefix" 0 kB [ebuild N ] kde-base/ksysguard-4.2.0 USE="lm_sensors -debug -htmlhandbook -kdeprefix -test" 0 kB [ebuild N ] kde-base/kephal-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/solid-4.2.0 USE="bluetooth -debug -kdeprefix (-networkmanager)" 7 kB [ebuild N ] kde-base/kstartupconfig-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/kreadconfig-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/kdedglobalaccel-4.2.0 USE="-debug -htmlhandbook -kdeprefix" 0 kB [ebuild N ] kde-base/knotify-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/kde-wallpapers-4.2.0 USE="-kdeprefix" 0 kB [ebuild N ] kde-base/kstyles-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/kdebase-desktoptheme-4.2.0 USE="-kdeprefix" 0 kB [ebuild N ] kde-base/kdesu-4.2.0 USE="-debug -htmlhandbook -kdeprefix" 0 kB [ebuild N ] kde-base/kdialog-4.2.0 USE="-debug -kdeprefix" 4,151 kB [ebuild N ] kde-base/libplasmaclock-4.2.0 USE="opengl xinerama -debug -kdeprefix" 0 kB [ebuild N ] kde-base/libtaskmanager-4.2.0 USE="xcomposite -debug -kdeprefix" 0 kB [ebuild N ] kde-base/kde-menu-icons-4.2.0 USE="-kdeprefix" 0 kB [ebuild N ] kde-base/nepomuk-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/kdnssd-4.2.0 USE="-debug -kdeprefix" 7,285 kB [ebuild N ] kde-base/libkonq-4.2.0 USE="-debug -kdeprefix -test" 0 kB [ebuild N ] kde-base/kcminit-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/plasma-apps-4.2.0 USE="-debug -htmlhandbook -kdeprefix" 0 kB [ebuild N ] kde-base/kwin-4.2.0 USE="opengl xcomposite xinerama -captury -debug -kdeprefix" 0 kB [ebuild N ] kde-base/kdebase-kioslaves-4.2.0 USE="bzip2 samba -debug -htmlhandbook -kdeprefix -openexr" 0 kB [ebuild N ] kde-base/soliduiserver-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/khotkeys-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/ksmserver-4.2.0 USE="-debug -kdeprefix" 0 kB [ebuild N ] kde-base/kcontrol-4.2.0-r1 USE="-debug -htmlhandbook -kdeprefix" 0 kB [ebuild N ] kde-base/krunner-4.2.0 USE="opengl xcomposite xscreensaver -debug -kdeprefix" 0 kB [ebuild N ] kde-base/systemsettings-4.2.0 USE="opengl usb xinerama -debug -htmlhandbook -kdeprefix" 0 kB [ebuild N ] kde-base/pykde4-4.2.0 USE="semantic-desktop -akonadi -debug -kdeprefix" 4,596 kB [ebuild N ] kde-base/plasma-workspace-4.2.0 USE="python xcomposite xinerama -debug -google-gadgets -htmlhandbook -kdeprefix" 0 kB [ebuild N ] kde-base/kdebase-startkde-4.2.0 USE="-kdeprefix" 0 kB [blocks B ] net-dns/avahi ("net-dns/avahi" is blocking net-misc/mDNSResponder-107.6-r5) Total: 45 packages (45 new), Size of downloads: 151,351 kB Conflict: 1 block (1 unsatisfied) * Error: The above package list contains packages which cannot be * installed at the same time on the same system. ('ebuild', '/', 'net-misc/mDNSResponder-107.6-r5', 'merge') pulled in by net-misc/mDNSResponder required by ('ebuild', '/', 'kde-base/kdnssd-4.2.0', 'merge') ('installed', '/', 'net-dns/avahi-0.6.24', 'nomerge') pulled in by >=net-dns/avahi-0.6.16-r1 required by ('installed', '/', 'net-p2p/ktorrent-2.2.7', 'nomerge') Expected Results: kdnssd is only a plugin for KDE Control center and should be optional so that you can install KDE 4.2 if you have only Avahi and no mDNSResponder. If I mask kde-base/kdnssd and try to run "emerge -av kdebase-startkde" again I get: These are the packages that would be merged, in order: Calculating dependencies... done! !!! All ebuilds that could satisfy ">=kde-base/kdnssd-4.2.0:4.2" have been masked. !!! One of the following masked packages is required to complete your request: - kde-base/kdnssd-4.2.0 (masked by: package.mask) /etc/portage/package.mask: # >=sci-libs/cln-1.2 For more information, see the MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook. (dependency required by "kde-base/kcontrol-4.2.0-r1" [ebuild]) (dependency required by "kde-base/systemsettings-4.2.0" [ebuild]) (dependency required by "kde-base/kdebase-startkde-4.2.0" [ebuild]) (dependency required by "kdebase-startkde" [argument])
That's an old problem, often returning to the forums. You should probably set 'avahi' globally and reemerge avahi with 'mdnsresponder-compat' useflag (or, at least, search the forums).
Please emerge kde-base/kdnssd with USE=mdnsresponder-compat. It's probably a good idea to set USE=mdnsresponder-compat globally, or alternatively set it in /etc/portage/package.use
Thanks to both of you. Setting mdnsresponder-compat use flag did the trick and KDE 4.2 is now compiled and installed. Although kdnssd didn't have this flag, I only had to set it with avahi and that was fine.
