MarsSeed [1] filed a deletion request for openmodelica-dev [2]: 6 year old unstable/development release metapackage. Not useful to keep. All its dependencies are similarly abandoned.
Upstream actually only promotes stable releases and nightly builds since many years. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/openmodelica-dev/
