env-update doesn't seem to remove duplicates in PATH and other colon separated variables. This results in a long and messy PATH (as well as MANPATH and some others). My PATH end up looking like this: /usr/kde/3.5/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.1.1:/opt/blackdown-jdk-1.4.2.03/bin:/opt/blackdown-jdk-1.4.2.03/jre/bin:/usr/kde/3.5/bin:/usr/kde/3.5/bin:/usr/qt/3/bin:/usr/qt/3/bin:/usr/games/bin:/usr/share/omniORB/bin/scripts:/opt/vmware/server/bin As you can see these two files are nearly identical, that cause the dupes of qt: tux /etc/env.d # cat 45qt3 PATH=/usr/qt/3/bin ROOTPATH=/usr/qt/3/bin LDPATH=/usr/qt/3/lib:/usr/qt/3/lib64:/usr/qt/3/lib32 QMAKESPEC=linux-g++ MANPATH=/usr/qt/3/doc/man PKG_CONFIG_PATH=/usr/qt/3/lib64/pkgconfig tux /etc/env.d # cat 45qt3-emul PATH=/usr/qt/3/bin ROOTPATH=/usr/qt/3/bin LDPATH=/usr/qt/3/lib:/usr/qt/3/lib64:/usr/qt/3/lib32 QMAKESPEC=linux-g++ MANPATH=/usr/qt/3/doc/man PKG_CONFIG_PATH=/usr/qt/3/lib32/pkgconfig The packages these belong to: x11-libs/qt-3.3.6-r4 (/etc/env.d/45qt3) app-emulation/emul-linux-x86-qtlibs-10.0 (/etc/env.d/45qt3-emul) As it is possible for someone to have only one of these, it is not possible to just remove one, instead env-update should not add dupes. Reproducible: Always Steps to Reproduce: 1. Have some packages that add the same path to PATH installed (for example: app-emulation/emul-linux-x86-qtlibs and x11-libs/qt) 2. Open a terminal and type: echo "$PATH" Actual Results: /usr/kde/3.5/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.1.1:/opt/blackdown-jdk-1.4.2.03/bin:/opt/blackdown-jdk-1.4.2.03/jre/bin:/usr/kde/3.5/bin:/usr/kde/3.5/bin:/usr/qt/3/bin:/usr/qt/3/bin:/usr/games/bin:/usr/share/omniORB/bin/scripts:/opt/vmware/server/bin Expected Results: Only the first of each path should be in the path, any later ones are redunant: /usr/kde/3.5/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.1.1:/opt/blackdown-jdk-1.4.2.03/bin:/opt/blackdown-jdk-1.4.2.03/jre/bin:/usr/qt/3/bin:/usr/games/bin:/usr/share/omniORB/bin/scripts:/opt/vmware/server/bin I don't know if this cause any loss of performance or if it is just a "visual" bug. Unless there are :-separated variables that have to contain duplicates a fix for this should be simple to add to the env-update code in /usr/lib/portage/pym/portage.py (somewhere below line 564, I can't code python so I don't know how to exactly fix it).
This has been released in 2.1.2.10.
