Package: aptitude Version: 0.8.13-5 Severity: normal Consider for instance:
$ aptitude why mailutils i muttprint Recommends mutt | sylpheed | gnus | xfmail | exmh | mail-reader i A mailutils Provides mail-reader Here, one can see that mailutils provides mail-reader. $ aptitude --show-summary=all-packages why mailutils Packages requiring mailutils: muttprint R: mail-reader P<- mail-reader But here one has mail-reader on both sides of "P<-". I suppose that this should have been muttprint R: mail-reader P<- mailutils -- Package-specific info: Terminal: xterm-256color $DISPLAY is set. which aptitude: /usr/bin/aptitude aptitude version information: aptitude 0.8.13 Compiler: g++ 12.1.0 Compiled against: apt version 6.0.0 NCurses version 6.3 libsigc++ version: 2.10.8 Gtk+ support disabled. Qt support disabled. Current library versions: NCurses version: ncurses 6.4.20221231 cwidget version: 0.5.18 Apt version: 6.0.0 aptitude linkage: linux-vdso.so.1 (0x00007fff29f63000) libgtk3-nocsd.so.0 => /usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 (0x00007f1a978c8000) libapt-pkg.so.6.0 => /usr/lib/x86_64-linux-gnu/libapt-pkg.so.6.0 (0x00007f1a97205000) libncursesw.so.6 => /lib/x86_64-linux-gnu/libncursesw.so.6 (0x00007f1a9788e000) libtinfo.so.6 => /lib/x86_64-linux-gnu/libtinfo.so.6 (0x00007f1a9785c000) libsigc-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0 (0x00007f1a97853000) libcwidget.so.4 => /usr/lib/x86_64-linux-gnu/libcwidget.so.4 (0x00007f1a97113000) libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007f1a96fb4000) libboost_iostreams.so.1.74.0 => /usr/lib/x86_64-linux-gnu/libboost_iostreams.so.1.74.0 (0x00007f1a97839000) libxapian.so.30 => /usr/lib/x86_64-linux-gnu/libxapian.so.30 (0x00007f1a96c00000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f1a97834000) libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f1a96800000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f1a96ed5000) libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f1a96eb5000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1a96a1f000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f1a9782d000) libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f1a96e96000) libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f1a9781a000) liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f1a96e65000) liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f1a96e3f000) libzstd.so.1 => /usr/lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f1a96744000) libudev.so.1 => /usr/lib/x86_64-linux-gnu/libudev.so.1 (0x00007f1a96717000) libsystemd.so.0 => /usr/lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f1a96648000) libgcrypt.so.20 => /usr/lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f1a96501000) libxxhash.so.0 => /usr/lib/x86_64-linux-gnu/libxxhash.so.0 (0x00007f1a964ec000) /lib64/ld-linux-x86-64.so.2 (0x00007f1a978f5000) libuuid.so.1 => /usr/lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f1a96e33000) libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007f1a964e0000) libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f1a964b8000) -- System Information: Debian Release: 12.0 APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'testing-security'), (500, 'stable-updates'), (500, 'stable-security'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') merged-usr: no Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.1.0-7-amd64 (SMP w/12 CPU threads; PREEMPT) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=POSIX, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages aptitude depends on: ii aptitude-common 0.8.13-5 ii libapt-pkg6.0 2.6.0 ii libboost-iostreams1.74.0 1.74.0+ds1-20 ii libc6 2.36-8 ii libcwidget4 0.5.18-6 ii libgcc-s1 12.2.0-14 ii libncursesw6 6.4-2 ii libsigc++-2.0-0v5 2.12.0-1 ii libsqlite3-0 3.40.1-2 ii libstdc++6 12.2.0-14 ii libtinfo6 6.4-2 ii libxapian30 1.4.22-1 Versions of packages aptitude recommends: ii libdpkg-perl 1.21.21 ii sensible-utils 0.0.17+nmu1 Versions of packages aptitude suggests: pn apt-xapian-index <none> ii aptitude-doc-en [aptitude-doc] 0.8.13-5 pn debtags <none> ii tasksel 3.72 -- no debconf information -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)