Support for custom allocators was dropped in
Deprecate and drop support for memory vtables
The introductory doc text for the gmem APIs still warns against mixing malloc/free with g_malloc/g_free. Clarify upfront in the docs that these two sets of APIs are now guaranteed to use the same memory allocator & can thus their usage can be freely mixed.
Signed-off-by: Daniel P. Berrangé firstname.lastname@example.org