[PATCH v2 0/3] MR5845: opcservices: Provide memory allocator functions to zlib

[Danyil Blyschak (＠blyss)]

Provide memory allocator functions to zlib so that it is able to allocate memory and then deflate later.
Also, some minor error-handling things.

--
  v2: opcservices: Check for memory allocation failure before deflating.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/5845