"Linker option unused" build failure(s) — clang 12.0.1

PackageVersionSupposed error messageFull log Bug report
ayatana-indicator-messages 0.8.2-1clang: error: -Wl,--as-needed: 'linker' input unused [-Werror,-Wunused-command-line-argument] Log
blktrace 1.2.0-5clang: error: -Wl,-z,deb-canary-55b37c5c270e5d84c793e486d798c01d: 'linker' input unused [-Werror,-Wunused-command-line-argument] Log
frozen-bubble 2.212-9clang: error: -lglib-2.0: 'linker' input unused [-Werror,-Wunused-command-line-argument] Log
netplan.io 0.103-3clang: error: -lgobject-2.0: 'linker' input unused [-Werror,-Wunused-command-line-argument]clang Log
pmacct 1.7.6-2clang: error: -lpcap: 'linker' input unused [-Werror,-Wunused-command-line-argument] Log 812171
snek 1.7-2clang: error: -Wl,-z,now: 'linker' input unused [-Werror,-Wunused-command-line-argument] Log

6 errors