Fix macOS universal2 build of the perf trampoline. After the per-architecture
split in :gh:`149800`, the arm64 and x86_64 trampoline objects were
each compiled as fat Mach-O files, and lipo -create refused to merge them.
Fix macOS universal2 build of the perf trampoline. After the per-architecture
split in :gh:`149800`, the arm64 and x86_64 trampoline objects were
each compiled as fat Mach-O files, and lipo -create refused to merge them.