restrict requires a pointer or reference - Rebuild of the Debian archive with clang

"restrict requires a pointer or reference" build failure(s)
clang 2.9

clang complains about the syntax (while gcc accepts it)

void foo()
{
    register int i, restrict;
}

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
cdecl	2.5-11	cdecl.c:244:24: error: expected identifier or '('	Log
icheck	0.9.7-6.1	PerlXS.xs:1721:17: error: expected identifier or '('	Log
pcp	3.5.7	logger.c:367:39: error: expected identifier or '('	Log
sofia-sip	1.12.11+20110422-1	./sofia-sip/sip_extra.h:2:1: error: expected identifier or '(' before '}' token	Log

4 errors

Debian Package rebuild