"Variable length array in structure won't be supported" build failure(s) — clang 3.2

The following code is not (and won't) supported by clang.
int returnAnInt(void) {
  return 42;
}

int main() {
  struct {
     char buf[returnAnIt()];
  } r;
}
PackageVersionSupposed error messageFull log Bug report
bird 1.3.9-1netlink.c:623:10: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
cuba 3.0+20111124-2./src/vegas/Integrate.c:17:15: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
iproute 20120521-3ipxfrm.c:560:8: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
libdc1394-22 2.2.0-2control.c:284:19: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
libnetfilter-conntrack 1.0.1-1api.c:938:8: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
ndisc6 1.0.1-1trace-tcp.c:58:11: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
picolisp 3.1.1.1-1main.c:652:34: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
rng-tools 2-unofficial-mt.14-1rngd_linux.c:191:17: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
seccure 0.3-3seccure.c:665:12: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log
unscd 0.48-2nscd.c:2387:9: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Log

10 errors