Thank you for your bug report, it's a wanted change and not a bug according to https://salsa.debian.org/science-team/suitesparse/-/commit/3b00ddd5 '+ Drop package for CSparse (libcsparse), superseded by libcxsparse.' , did you try to use this one?
** Changed in: suitesparse (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879556 Title: plain 'csparse' lib file not in bionic version To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/suitesparse/+bug/1879556/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs