"Unknown/unexpected directive" build failure(s) — clang 3.4

PackageVersionSupposed error messageFull log Bug report
faumachine 20120707-3../bios/entry.S:23:1: error: unexpected directive .code16gcc Log
fis-gtm 6.0-003-2pseudo_ret.s:13:2: error: unknown directive Log
grml2usb 0.14.2mbr.S:32:2: error: unexpected directive .code16 Log
pearpc 0.5.dfsg-2.1jitc_mmu.S:36:1: error: unknown directive Log
sbcl 2:1.1.14-2x86-64-assem.S:619:9: error: unknown directive Log
wraplinux 1.7-8reloc/a20.S:31:2: error: unexpected directive .code16 Log

6 errors