"Unknown argument in the command line" build failure(s) — clang 12.0.1

gcc has plenty of options. Some of them should be implemented by clang, some other, no.
A first discussion occurred on this subject on the clang mailing list.
PackageVersionSupposed error messageFull log Bug report
alsaplayer 0.99.81-2clang: error: unknown argument: '-frelease' Log
axc 0.3.6-2clang: error: unknown argument: '-print-multiarch' Log
benchmark 1.6.0-2clang: error: unknown argument: '-wd654' Log
cod-tools 3.3.0+dfsg-1clang: error: unknown argument: '-foptimize-register-move' Log
efivar 37-6clang: error: unknown argument: '-flto-partition=none' Log
freecontact 1.0.21-10clang: error: unknown argument: '-ftree-vectorizer-verbose=0' Log
gfan 0.6.2-4clang: error: unknown argument: '-fno-guess-branch-probability' Log 755308
gmic 2.9.4-4clang: error: unknown argument: '-fno-ipa-sra' Log
gprolog 1.4.5.0-3clang: error: unknown argument '-ffixed-r12'; did you mean '-ffixed-r19'? Log
hkl 5.0.0.2816-2clang: error: unknown argument: '-ftrack-macro-expansion=0' Log
intel-hdcp 20.3.0-1error: unknown argument: '-foptimize-strlen' Log
lastpass-cli 1.3.3-4clang: error: unknown argument: '-fno-aggressive-loop-optimizations' Log
libdockapp 1:0.7.3-2error: unknown argument: '-frelease' Log
libomemo 0.7.0-1clang: error: unknown argument: '-print-multiarch' Log
librecad 2.1.3-1.3clang: error: unknown argument: '-fext-numeric-literals' Log
opencryptoki 3.8.1+dfsg-3.2clang: error: unknown argument: '-fgnu-tm' Log
qiv 2.3.2-2clang: error: unknown argument: '-fthread-jumps' Log
shim 15.4-7clang: error: unknown argument: '-maccumulate-outgoing-args' Log
tcsh 6.21.00-1.1clang: error: unknown argument: '-frelease' Log
wmaker 0.95.9-3clang: error: unknown argument: '-frelease' Log
wmcpuload 1.1.1-2clang: error: unknown argument: '-frelease' Log
wmlongrun 0.3.1-2clang: error: unknown argument: '-frelease' Log
wmmemload 0.1.8-3clang: error: unknown argument: '-frelease' Log

23 errors