Hi Mark,
> Since commit 2b0c755d195c79bfc95cdbe802e1e2dea1adb7a2 in August 2018, > our 'gnome-shell' executable has been wrapped by a script that sets > LD_LIBRARY_PATH. > > One consequence of this, which I just noticed, is that if 'gnome-shell' > is based on 'core-updates' (or in my case, 'core-updates-next'), many > programs based on 'master' will fail to run within the resulting GNOME > session. […] > I was unable to easily find an existing bug report tracking this issue, > so I created this one. There was no bug report about this, so thanks for reporting it. I once brought this issue up on the mailing list here: https://lists.gnu.org/archive/html/guix-devel/2019-05/msg00372.html -- Ricardo