Ignored or unknown attributes - Rebuild of the Debian archive with clang

"Ignored or unknown attributes" build failure(s)
clang 3.8.1

Versions: 2.9 - 3.0 - 3.1 - 3.2 - 3.3 - 3.4 - 3.4.2 - 3.5.0 - 3.6.0 - 3.8.1 - 3.9.1 - 4.0.1 - 5.0 - 6.0 - 8.0.1 - 9.0.1 - 10.0.0 - 11.0.0 - 12.0.1 - 13.0.0

Package	Version	Supposed error message	Full log	Bug report
dislocker	0.6.1-6	ruby.h:933:1: error: attribute 'deprecated' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes]	Log
efibootmgr	0.12-4	efivar.h:86:16: error: unknown attribute '__artificial__' ignored [-Werror,-Wunknown-attributes]	Log	~~753644~~
primus	0~20150328-4	./gl-passthru.def:2:1: error: unknown attribute 'ifunc' ignored [-Werror,-Wunknown-attributes]	Log
ruby-byebug	5.0.0-1	ruby.h:933:1: error: attribute 'deprecated' is ignored, place it after "struct" to apply attribute to type declaration [-Werror,-Wignored-attributes]	Log

4 errors

Debian Package rebuild