C99 variable length arrays for numerical code?

[Perrin Meyer]

For quite a while now, the C99 status page has said that both
variable-length arrays and complex (and) imaginary support in complex.h are
Broken.

As someone who writes a lot of computational acoustics code, I'd really like
to start using these features, or at least have better explanation of what
is broken and what isn't. I've been using _Complex variables in gcc for a
while now, and as far as I can tell, that part is working fine.

Any thoughts on when these features (and the rest of C99 compliance that's
important for numerical work) might be completed?

Thanks,

Perrin Meyer