fix(patch): Fix issues with broken build when visionOS is unknown (#261)

Fix issues with broken build when visionOS is unknown

Package.swift

@@ -115,7 +115,7 @@ let package = Package(
 
 let macOSSPIBuild: Bool // Disables jemalloc for macOS SPI builds as the infrastructure doesn't have jemalloc there
 
-#if os(macOS) || os(iOS) || os(watchOS) || os(tvOS) || os(visionOS)
+#if canImport(Darwin)
     if let spiBuildEnvironment = ProcessInfo.processInfo.environment["SPI_BUILD"], spiBuildEnvironment == "1" {
         macOSSPIBuild = true
         print("Building for SPI@macOS, disabling Jemalloc")

Sources/Benchmark/BenchmarkClock.swift

@@ -61,7 +61,7 @@ extension BenchmarkClock: Clock {
 
     /// The minimum non-zero resolution between any two calls to `now`.
     public var minimumResolution: Swift.Duration {
-#if os(macOS) || os(iOS) || os(watchOS) || os(tvOS) || os(visionOS)
+#if canImport(Darwin)
         return Duration.nanoseconds(1)
 #elseif os(Linux)
         var resolution = timespec()
@@ -83,7 +83,7 @@ extension BenchmarkClock: Clock {
 
     /// The current continuous instant.
     public static var now: BenchmarkClock.Instant {
-#if os(macOS) || os(iOS) || os(watchOS) || os(tvOS) || os(visionOS)
+#if canImport(Darwin)
         let nanos = clock_gettime_nsec_np(CLOCK_UPTIME_RAW) // to get ns resolution on macOS
 
         let seconds: UInt64 = nanos / 1_000_000_000

Sources/Benchmark/OperatingSystemStats/OperatingSystemStatsProducer+Darwin.swift

@@ -8,7 +8,7 @@
 // http://www.apache.org/licenses/LICENSE-2.0
 //
 
-#if os(macOS) || os(iOS) || os(watchOS) || os(tvOS) || os(visionOS)
+#if canImport(Darwin)
 
     import CDarwinOperatingSystemStats
     import Darwin
@@ -228,7 +228,7 @@
         }
 
         func metricSupported(_ metric: BenchmarkMetric) -> Bool {
-            #if os(macOS) || os(iOS) || os(watchOS) || os(tvOS) || os(visionOS)
+            #if canImport(Darwin)
                 switch metric {
                 case .readSyscalls:
                     return false