unresolved external symbol in BetterC

[Marcel]

On Sunday, 8 December 2019 at 19:36:40 UTC, Mike Parker wrote:
> Struct destructors should work in betterC. It would be helpful 
> if you can paste the errors.

extern(C) void main()
{
	auto pool = ObjectPool!(int)(100);
	auto a = pool.Acquire;
	pool.Release(*a);
}

This code generates the two following errors:

1>Test.obj : error LNK2019: unresolved external symbol 
_d_enter_cleanup referenced in function "?dtor$5@?0?"ref 
Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array.opAssign(const(Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array))" (_D11Collections6Arrays__T5ArrayTSQBf11ObjectPools__T10ObjectPoolTiTS6Memory10Allocators16DefaultAllocatorZQCc5EntryTQBxZQDr8opAssignMFNcxSQFgQEw__TQEsTQEpTQDkZQFeZSQGgQFw__TQFsTQFpTQEkZQGe)@4HA" (?dtor$5@?0?"ref Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array.opAssign(const(Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array))" (_D11Collections6Arrays__T5ArrayTSQBf11ObjectPools__T10ObjectPoolTiTS6Memory10Allocators16DefaultAllocatorZQCc5EntryTQBxZQDr8opAssignMFNcxSQFgQEw__TQEsTQEpTQDkZQFeZSQGgQFw__TQFsTQFpTQEkZQGe)@4HA)

1>Test.obj : error LNK2019: unresolved external symbol 
_d_leave_cleanup referenced in function "?dtor$5@?0?"ref 
Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array.opAssign(const(Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array))" (_D11Collections6Arrays__T5ArrayTSQBf11ObjectPools__T10ObjectPoolTiTS6Memory10Allocators16DefaultAllocatorZQCc5EntryTQBxZQDr8opAssignMFNcxSQFgQEw__TQEsTQEpTQDkZQFeZSQGgQFw__TQFsTQFpTQEkZQGe)@4HA" (?dtor$5@?0?"ref Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array.opAssign(const(Collections.Arrays.Array!(Collections.ObjectPools.ObjectPool!(int, Memory.Allocators.DefaultAllocator).ObjectPool.Entry, Memory.Allocators.DefaultAllocator).Array))" (_D11Collections6Arrays__T5ArrayTSQBf11ObjectPools__T10ObjectPoolTiTS6Memory10Allocators16DefaultAllocatorZQCc5EntryTQBxZQDr8opAssignMFNcxSQFgQEw__TQEsTQEpTQDkZQFeZSQGgQFw__TQFsTQFpTQEkZQGe)@4HA)