alexanderp [1] filed a deletion request for microsoft-r-open-blas- systemblas [2]: this package is obsolete and unnecessary since MRO budles MKL by default now (see https://mran.revolutionanalytics.com/download/) [1] https://aur.archlinux.org/account/alexanderp/ [2] https://aur.archlinux.org/pkgbase/microsoft-r-open-blas-systemblas/