[resend PATCH] include: Add missing structs and defines for xact3wb.h

[Zebediah Figura]

On 4/10/20 7:57 AM, Vijay Kiran Kamuju wrote:
> +#define WAVEBANK_HEADER_SIGNATURE 'DBNW'

This isn't portable. I suspect using the equivalent integer constant 
would be acceptable in its stead.