Exclude code that will never run on Apple (#3187)

Author: mattleibow

binding/Binding.Shared/PlatformConfiguration.cs

@@ -85,7 +85,7 @@ public static string LinuxFlavor
 			set => linuxFlavor = value;
 		}
 
-#if WINDOWS_UWP
+#if WINDOWS_UWP || __IOS__ || __TVOS__ || __MACOS__ || __MACCATALYST__ || __ANDROID__
 		public static bool IsGlibc { get; }
 #else
 		private static readonly Lazy<bool> isGlibcLazy = new Lazy<bool> (IsGlibcImplementation);

binding/SkiaSharp/PlatformLock.cs

@@ -68,9 +68,11 @@ public static IPlatformLock Create ()
 		/// <returns>A reference to a new platform lock implementation</returns>
 		public static IPlatformLock DefaultFactory ()
 		{
+#if !(__IOS__ || __TVOS__ || __MACOS__ || __MACCATALYST__ || __ANDROID__)
 			if (PlatformConfiguration.IsWindows)
 				return new NonAlertableWin32Lock ();
 			else
+#endif
 				return new ReadWriteLock ();
 		}
 
@@ -90,6 +92,7 @@ class ReadWriteLock : IPlatformLock
 			ReaderWriterLockSlim _lock = new ReaderWriterLockSlim ();
 		}
 
+#if !(__IOS__ || __TVOS__ || __MACOS__ || __MACCATALYST__ || __ANDROID__)
 		/// <summary>
 		/// Windows platform lock uses Win32 CRITICAL_SECTION
 		/// </summary>
@@ -169,6 +172,6 @@ public struct CRITICAL_SECTION
 			static extern void LeaveCriticalSection (IntPtr lpCriticalSection);
 #endif
 		}
+#endif
 	}
-
 }

binding/SkiaSharp/SKAutoCoInitialize.cs

@@ -12,9 +12,11 @@ public partial class SKAutoCoInitialize : IDisposable
 
 		public SKAutoCoInitialize()
 		{
+#if !(__IOS__ || __TVOS__ || __MACOS__ || __MACCATALYST__ || __ANDROID__)
 			if (PlatformConfiguration.IsWindows)
 				hResult = CoInitializeEx(IntPtr.Zero, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
 			else
+#endif
 				hResult = S_OK;
 		}
 
@@ -24,8 +26,10 @@ public void Uninitialize()
 		{
 			if (hResult >= 0)
 			{
+#if !(__IOS__ || __TVOS__ || __MACOS__ || __MACCATALYST__ || __ANDROID__)
 				if (PlatformConfiguration.IsWindows)
 					CoUninitialize();
+#endif
 
 				hResult = -1;
 			}
@@ -41,6 +45,7 @@ public void Uninitialize()
 		private const uint COINIT_DISABLE_OLE1DDE = 0x4;
 		private const uint COINIT_SPEED_OVER_MEMORY = 0x8;
 
+#if !(__IOS__ || __TVOS__ || __MACOS__ || __MACCATALYST__ || __ANDROID__)
 #if USE_LIBRARY_IMPORT
 		[LibraryImport("ole32.dll", SetLastError = true)]
 		private static partial long CoInitializeEx(IntPtr pvReserved, uint dwCoInit);
@@ -51,6 +56,7 @@ public void Uninitialize()
 		private static extern long CoInitializeEx([In, Optional] IntPtr pvReserved, [In] uint dwCoInit);
 		[DllImport("ole32.dll", CharSet = CharSet.Ansi, SetLastError = true, CallingConvention = CallingConvention.StdCall)]
 		private static extern void CoUninitialize();
+#endif
 #endif
 	}
 }