no platform load command found in ‘libxyz.a’, assuming: macOS

This is a linker warning I see frequently since Xcode 15.0. It appears it’s a result of Apple’s new linker, “ld_prime”, which replaced “ld64” that was in use [by Apple] since around 2005 (per Quinn the Eskimo). ☝️ “ld_prime” might be an internal code name, or perhaps is just Quinn’s personal nomenclature. The actual binary… Read more

Secret Sonoma design lead: Barbie

macOS Sonoma is in so many ways a dumpster fire. It’s the worst Apple OS update I can remember (although admittedly there’s been some real stinkers over the years, so maybe I’m overlooking some repressed memories). There was of course the bug whereby encrypted external drives no longer mounted automatically. That was pretty special, because… Read more

SwiftData pitfalls

I’ve been exploring SwiftData lately, and I’ve been unpleasantly surprised by how many sharp edges it has. I’m going to try to describe some of them here, so that hopefully others can avoid them (or perhaps be dissuaded from using SwiftData to begin with). I’m using Xcode 15.0.1 (Swift 5.9) on macOS 14.1 (Sonoma). Background… Read more

getifaddrs never specifies broadcast addresses

Apple “Feedback” #12149764. According to man 3 getifaddrs: The ifa_dstaddr field references the destination address on a P2P interface, if one exists, otherwise it contains the broadcast address. In my testing the ifa_dstaddr field is never non-null. I’m not sure I have any suitably configured P2P interfaces, but I definitely have interfaces with broadcast capabilities… Read more

getifaddrs returns truncated sockaddr_in’s for AF_INET ifa_netmasks

Apple “Feedback” #12149675. Some netmasks returned by getifaddrs have family of AF_INET yet a length less than sizeof(sockaddr_in), e.g. 5, 6, 7, or 8. On macOS Ventura 13.3.1, at least. It looks like it’s actually allocating only eight bytes for the ifa_netmask (not the 16 that is the size of sockaddr_in per MacOSX13.3.sdk/usr/include/netinet/in.h), as it… Read more