"Unknown argument in the command line" build failure(s) — clang 5.0

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
adacontrol 1.18r9-2clang: error: unknown argument: '-gnatct' Log
alljoyn-gateway-1504 15.04~git20160606-3clang: error: unknown argument: '-print-multiarch' Log
efitools 1.4.2-2clang: error: unknown argument: '-fno-toplevel-reorder' Log
fwupdate 9-2clang: error: unknown argument: '-maccumulate-outgoing-args' Log
gprbuild 2017-4clang: error: unknown argument: '-gnatea' Log
gprolog 1.4.5-4.1clang: error: unknown argument: '-ffixed-r12' Log
lastpass-cli 1.0.0-1.2clang: error: unknown argument: '-fno-aggressive-loop-optimizations' Log
libaws 17.2.2017-1clang: error: unknown argument: '-gnatea' Log
libgmpada 1.1-2clang: error: unknown argument: '-gnatea' Log
libxmlada 17.1.2017-4clang: error: unknown argument: '-gnatea' Log
music123 16.4-2clang: error: unknown argument: '-gnatea' Log
opencryptoki 3.7.0+dfsg-4clang: error: unknown argument: '-fgnu-tm' Log
pgbackrest 1.22-1clang: error: unknown argument: '-ftree-vectorizer-verbose=2' Log
phototonic 1.7.20-1clang: error: unknown argument: '-print-multiarch' Log
shim 0.9+1474479173.6c180c6-1clang: error: unknown argument: '-maccumulate-outgoing-args' Log
spark 2012.0.deb-11clang: error: unknown argument: '-gnatea' Log

16 errors