bug#37940: endless "try upgrading both" cycles

[Arne Babenhauserheide]

Hi,


When installing a package while some packages are not up to date, guix
can require adding more and more packages to guix install:


$ LANG=C guix install gtk+ dbus dbus-c++ dbus-glib glib libsoup rest libnotify 
poppler pcre libffi
The following packages will be upgraded:
   dbus 1.12.12 -> 1.12.16      
/gnu/store/nlb24nrrrkn2h9vflnqigcf2hx58rvyx-dbus-1.12.16
   dbus-c++     0.9.0 -> 0.9.0  
/gnu/store/f67vzh5hp4jd2y34hiz8jdd9wymv1j8x-dbus-c++-0.9.0
   dbus-glib    0.108 -> 0.108  
/gnu/store/0riy07j7njqf2avcr9n5asrdxapd2np4-dbus-glib-0.108
   glib 2.56.3 -> 2.60.6        
/gnu/store/fbnpd7vjifm6ijyij4hi18mnsnf76983-glib-2.60.6
   libsoup      2.66.2 -> 2.68.2        
/gnu/store/pabg3nkgmxg5cglimz7fklnk4n4dypb1-libsoup-2.68.2
   rest 0.8.1 -> 0.8.1  /gnu/store/xpvpfhf93rz4jkvi9pp2p5cvh4jcbv1h-rest-0.8.1
   libnotify    0.7.7 -> 0.7.7  
/gnu/store/djpm5rvn35aaasfsgh7y3kqis71av5fy-libnotify-0.7.7
   poppler      0.72.0 -> 0.79.0        
/gnu/store/8xysjsr4nh72m4334vff987x52pxyfmn-poppler-0.79.0
   pcre 8.42 -> 8.43    /gnu/store/5j6w0x3aq0i5r9565w92lrh016vlmv2d-pcre-8.43
   libffi       3.2.1 -> 3.2.1  
/gnu/store/ain96mrdwqd4s9shdd3s7m4syp5icdx5-libffi-3.2.1

The following package will be installed:
   gtk+ 3.24.10 /gnu/store/6x13nr57i1qml20kjl30l7b767cw0d0b-gtk+-3.24.10

guix install: error: profile contains conflicting entries for util-linux
guix install: error:   first entry: util-linux@2.34 
/gnu/store/xymkwf57x988q8cny2is1dgzrbr9xdfi-util-linux-2.34
guix install: error:    ... propagated from glib@2.60.6
guix install: error:    ... propagated from poppler@0.79.0
guix install: error:   second entry: util-linux@2.32.1 
/gnu/store/8k4pnixpz73kxvxbjqajgbprjjmmgpxy-util-linux-2.32.1
hint: Try upgrading both `poppler' and `util-linux', or remove one of them from 
the profile.


Since Guix already knows about these requirements, it would be great if
I could tell it to just pull in all additional updates to be able to
install the package. Or at least tell me about all the required upgrades
in one step. Something like

guix install: error: profile contains conflicting entries
guix install: error: conflict N: util-linux
guix install: error:   first entry: util-linux@2.34 
/gnu/store/xymkwf57x988q8cny2is1dgzrbr9xdfi-util-linux-2.34
guix install: error:    ... propagated from glib@2.60.6
guix install: error:    ... propagated from poppler@0.79.0
guix install: error:   second entry: util-linux@2.32.1 
/gnu/store/8k4pnixpz73kxvxbjqajgbprjjmmgpxy-util-linux-2.32.1
guix install: error: conflict N+1: util-linux
guix install: error:   first entry: util-linux@2.34 
/gnu/store/xymkwf57x988q8cny2is1dgzrbr9xdfi-util-linux-2.34
guix install: error:   second entry: util-linux@2.32.1 
/gnu/store/8k4pnixpz73kxvxbjqajgbprjjmmgpxy-util-linux-2.32.1
guix install: error:    ... propagated from fontconfig@2.13.1

hint: Try upgrading removing dbus from the profile or upgrading all
dependent packages with
hint: guix install gtk+ dbus dbus-c++ dbus-glib glib libsoup rest libnotify 
poppler pcre libffi util-linux  ...


Best wishes,
Arne
-- 
Unpolitisch sein
heißt politisch sein
ohne es zu merken

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