Re: [PATCH v2 0/1] MR3187: winemac.drv: Give Apple GPUs device IDs

[Brendan Shanks (＠bshanks)]

> Do we need things built on 10.14 to run on M1 Macs (which don't support 32-bit)? If not, I can just ifdef it out in that case. Otherwise, I can try defining those symbols manually.

I think an ifdef (`#if defined(MAC_OS_X_VERSION_10_15) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_15`) should be fine, especially with Metal nobody should be expecting full functionality when building against old SDKs and then deploying to new ones.

(it would be nice if we could use `@available`, but that requires Xcode 9)