@v0id:
I'm part of upstream and we'll likely change the default to a backend that supports rar5 for the next release.
Until then you can edit the PKGBUILD yourself. Replace libunarr with libarchive in the depends and add the string "libarchive" to qmake6 CONFIG+="...". That is all that is needed to build with the libarchive backend.
Pinned Comments
selmf commented on 2021-05-24 11:17 (UTC)
Important: If you are having troubles compiling or launching YACReader and libicuuc is part of the error message, you need to rebuild libpdfium!