Meld Git difftool / mergetool

Git users often use Meld to graphically resolve 2-way differences and 3-way merges.

Configure Git to use Meld:

git config --global diff.tool meld
git config --global merge.tool meld


Windows needs an additional command from PowerShell:

git config --global mergetool.meld.path "$Env:ProgramFiles\\meld\\Meld.exe"

On Windows if also using MSYS2, don’t add Meld.exe to environment variable Path as it has libstdc++.dll that conflicts with MSYS2 G++. The symptom is the G++-built executable will segfault silently.