Variable length array in structure won't be supported - Rebuild of the Debian archive with clang

"Variable length array in structure won't be supported" build failure(s) — clang 2.9

int returnAnInt(void) {
  return 42;
}

int main() {
  struct {
     char buf[returnAnIt()];
  } r;
}

Package	Version	Supposed error message	Full log
bird	1.3.2-1	netlink.c:628:10: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
iproute	20110629-1	ipxfrm.c:560:8: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
libdc1394-22	2.1.3-4	control.c:284:19: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
ndisc6	1.0.1-1	trace-tcp.c:58:11: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
picolisp	3.0.7.7-2	main.c:651:34: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
radare2	0.8.1-1	fs/hfs.c:665:10: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
rng-tools	2-unofficial-mt.14-1	rngd_linux.c:191:17: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
seccure	0.3-3	seccure.c:665:12: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log
unscd	0.47-2	nscd.c:2385:9: error: fields must have a constant size: 'variable length array in structure' extension will never be supported	Log

9 errors