Missing UBSan libs

[Greg Steuck]

I notice people keep sending fixes to problems reported by UBSan. I
wanted to join the club, but the trivial thing listed at
https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html doesn't
work:

$ cat a.cc; clang++ -fsanitize=undefined a.cc; ./a.out
int main(int argc, char **argv) {
  int k = 0x7fffffff;
  k += argc;
  return 0;
}
ld: error: cannot open 
/usr/lib/clang/13.0.0/lib/openbsd/libclang_rt.ubsan_standalone-x86_64.a: No 
such file or directory
ld: error: cannot open 
/usr/lib/clang/13.0.0/lib/openbsd/libclang_rt.ubsan_standalone_cxx-x86_64.a: No 
such file or directory
clang++: error: linker command failed with exit code 1 (use -v to see 
invocation)

Did we forget to ship the ubsan libs? The only related files in sets:

./usr/lib/clang/13.0.0/lib
./usr/lib/clang/13.0.0/lib/libclang_rt.profile.a

Thanks
Greg