libattr1 from home:bhwachter:emacs project
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Add repository and install manually
For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:bhwachter:emacs/openSUSE_Leap_15.6/home:bhwachter:emacs.repo zypper refresh zypper install libattr1