Side note - Fred, can you send me some ports where I can find the Float16 bug?
—Mark On Sun, Aug 25, 2024, at 10:57 PM, Fred Wright wrote: > > On Thu, 15 Aug 2024, Mark E Anderson wrote: > > > Just a heads up, `CGDisplayCreateImageForRect` is no longer supported in > > the macOS 15 SDK. > > I don't know what SDK you're looking at, but I see that definition in the > macOS 15 SDK here, in both the beta 4 and beta 6 versions of XCode 16. > > If that were really true, it's a bug that would need to be fixed before it > comes out of beta, since Apple encourages, and in some cases requires, > builds to use the SDK for the next later OS version than the one being > targeted. So the SDK for OS N+1 damn well better include all the > definitions for OS N. > > There are at least two bugs that *do* exist in the macOS 15 SDK, at least > as of beta 6: > > 1) It still thinks it's a 14.0 SDK: > ------------------------------------------------------------------------- > /* > * if max OS not specified, assume larger of (10.15, min) > */ > #ifndef MAC_OS_X_VERSION_MAX_ALLOWED > #if MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_VERSION_14_0 > #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_X_VERSION_MIN_REQUIRED > #else > #define MAC_OS_X_VERSION_MAX_ALLOWED MAC_OS_VERSION_14_0 > #endif > #endif > ------------------------------------------------------------------------- > Note that the comment is even more outdated than the code. :-) > > 2) There are new functions for half-precision floats in 15.x, and their > prototypes are *unconditionally* included in math.h. That means that > building anything that uses math.h with a compiler that doesn't provide > the _Float16 type gets fatal errors. Availability attributes don't help > with this, since the declarations themselves are illegal without the type. > Usually, things of this form have conditionals related to compiler > capabilities, but that's currently missing here, and the usual "define it > as empty" approach doesn't work with types. > > Anyone with a paid developer account should feel free to file bugs about > those. Those of us who don't pay Apple for the privilege of telling them > what they're doing wrong don't have that option. > > On Fri, 16 Aug 2024, Mark E Anderson wrote: > > > I do! I'll look into that. Yeah, I don't even have the 14 SDK on this > > machine since Xcode 15 won't run. > > You don't need to *run* a version of Xcode just to extract an SDK from it. > Though in some cases you may trip over issues with the installer and/or > unarchiver. > > Fred Wright >
