I may be wrong here... In case I've misunderstood something in my following reasoning, I'd be more than happy to receive an indication about it, possibly accompanied by an explanation. It is my understanding that through an indirect dependency problem, it's not possible to have both 'tor' and 'libreoffice' installed in the same computer (unless going through hoops of work-arounds). The problem seems to stem from the usage of the PYTHON_SINGLE_TARGET USE-expand variable. - net-vpn/tor depends on app-text/asciidoc - app-text/asciidoc depends on python-exec compiled with PYTHON_SINGLE_TARGET python2_7 and nothing else. - app-office/libreoffice depends on =dev-libs/liborcus-0.12* plus dev-lang/python-exec-2 being installed with PYTHON_SINGLE_TARGET python3_4 but NOT python2_7 - dev-libs/liborcus-0.12.1 depends on >=dev-lang/python-exec-2 being installed with PYTHON_SINGLE_TARGET python3_4 but NOT python2_7 Have I understood this correctly? Do I interpret the output from qdepends correctly? If so, I'm not sure how to have both net-vpn/tor and app-office/libreoffice installed in the same computer. Some 'qdepends -r' runs. (Line feeds inserted for readability. :-) #qdepends -r net-vpn/tor net-vpn/tor-0.3.1.9: app-text/asciidoc <==== tor depends on asciidoc. Same is true for tor versions 0.3.1.7 and ~0.3.1.8 dev-libs/libevent[ssl] sys-libs/zlib dev-libs/openssl:0/0=[-bindist] sys-libs/libseccomp #qdepends -r app-text/asciidoc app-text/asciidoc-8.6.9-r2: >=app-text/docbook-xsl-stylesheets-1.75 dev-libs/libxslt app-text/docbook-xml-dtd:4.5 >=dev-lang/python-2.7.5-r2:2.7 >=dev-lang/python-exec-2:2/2=[python_targets_python2_7(-), -python_single_target_jython2_7(-), -python_single_target_pypy3(-), -python_single_target_python3_4(-), -python_single_target_python3_5(-), -python_single_target_python3_6(-), python_single_target_python2_7(+)] <==== asciidoc depends on python-exec compiled with PYTHON_SINGLE_TARGET python2_7 and nothing else. Over to LibreOffice... #qdepends -r app-office/libreoffice app-office/libreoffice-5.4.2.2: dev-lang/python:3.4[threads,xml] >=dev-lang/python-exec-2:2/2=[python_targets_python2_7(-), python_targets_python3_4(-), python_targets_python3_5(-), -python_single_target_jython2_7(-), -python_single_target_pypy(-), -python_single_target_pypy3(-), python_single_target_python3_4(+)] <==== libreoffice depends on python-exec compiled with PYTHON_SINGLE_TARGET python3_4 and nothing else. app-arch/unzip app-arch/zip app-crypt/gpgme[cxx] app-text/hunspell:0/1.6= >=app-text/libabw-0.1.0 >=app-text/libebook-0.1 >=app-text/libetonyek-0.1 app-text/libexttextcat app-text/liblangtag >=app-text/libmspub-0.1.0 >=app-text/libmwaw-0.3.1 >=app-text/libodfgen-0.1.0 app-text/libstaroffice app-text/libwpd:0.10[tools] app-text/libwpg:0.3 >=app-text/libwps-0.4 app-text/mythes >=dev-cpp/clucene-2.3.3.4-r2 =dev-cpp/libcmis-0.5* dev-db/unixODBC dev-lang/perl dev-libs/boost:0/1.63.0= dev-libs/expat dev-libs/hyphen dev-libs/icu:0/58.2= dev-libs/libassuan dev-libs/libgpg-error =dev-libs/liborcus-0.12* <==== libreoffice hard-depends on liborcus V0.12* dev-libs/librevenge dev-libs/nspr dev-libs/nss >=dev-libs/openssl-1.0.0d:0 >=dev-libs/redland-1.0.16 >=dev-libs/xmlsec-1.2.24[nss] media-gfx/graphite2 media-libs/fontconfig media-libs/freetype:2 >=media-libs/harfbuzz-0.9.42:0/0.9.18=[graphite,icu] media-libs/lcms:2 >=media-libs/libcdr-0.1.0 >=media-libs/libepoxy-1.3.1[X] >=media-libs/libfreehand-0.1.0 media-libs/libpagemaker >=media-libs/libpng-1.4:0/16= >=media-libs/libvisio-0.1.0 media-libs/libzmf net-libs/neon net-misc/curl net-nds/openldap sci-mathematics/lpsolve x11-libs/cairo[X] x11-libs/libXinerama x11-libs/libXrandr x11-libs/libXrender virtual/glu virtual/jpeg:0 virtual/opengl net-wireless/bluez net-print/cups dev-libs/dbus-glib media-libs/gstreamer:1.0 media-libs/gst-plugins-base:1.0 x11-libs/gdk-pixbuf >=x11-libs/gtk+-2.24:2 app-text/poppler:0/68=[cxx] !app-office/libreoffice-bin !app-office/libreoffice-bin-debug !app-office/openoffice media-fonts/dejavu media-fonts/liberation-fonts media-fonts/libertine x11-misc/xdg-utils kde-plasma/kde-cli-tools media-video/vlc qdepends -r dev-libs/liborcus dev-libs/liborcus-0.12.1: dev-libs/boost:0/1.63.0= sys-libs/zlib:0/1= dev-lang/python:3.4 >=dev-lang/python-exec-2:2/2=[python_targets_python3_4(-), python_targets_python3_5(-), -python_single_target_jython2_7(-), -python_single_target_pypy(-), -python_single_target_pypy3(-), -python_single_target_python2_7(-), <==== Can't install if python-exec compiled with PYTHON_SINGLE_TARGET python2_7 python_single_target_python3_4(+)] <==== Depends on python-exec compiled with PYTHON_SINGLE_TARGET python3_4 =dev-libs/libixion-0.12*:0/0.12= As said above, this is my interpretation, which may not necessarily be the right way to read the output. Anyway, I'm not able to install both 'tor' and 'libreoffice' unless I first set PYTHON_SINGLE_TARGET="python2_7", install 'tor' with it's dependencies and thereafter set PYTHON_SINGLE_TARGET="python3_4" and install 'libreoffice'. From there, I can do a 'emerge -uD @world' without any blockers, but I can't do for instance 'emerge -uD --newuse @world' or 'emerge -uD --changed-use @world', since they will both block between 'tor' and 'libreoffice'. Anything more I can provide?
I can't see a problem here. 1) liborcus works just fine with python2_7. 2) you can define individual python_single_targets using package.use but that is not even necessary here.
