Setting path explicitly does not help either. Some other colleagues are having the same problem. So it might be related to our OS (SLES 12 SP4) Thanks for your help so far. As you said - the issue seems to be on our end. I am currently digging through git-mergetool--lib.sh to find out why it thinks that p4merge is not a valid tool. Thanks again for your help Lars On Fri, Apr 24, 2020 at 9:20 AM Carlo Marcelo Arenas Belón <carenas@xxxxxxxxx> wrote: > > On Fri, Apr 24, 2020 at 08:57:27AM +0200, Lars Fricke wrote: > > > > git mergetool --tool-help indeed does NOT list p4merge. > > but does show if you run : > > $ PATH=$PATH:/opt/perforce/bin > > > So support was discontinued? > > no; something else might be broken (hopefully only in your setup) > it seems to work at least on mine : > > $ git version > git version 2.26.2.266.ge870325ee8 > $ git config --list | grep p4 > merge.tool=p4merge > > Carlo