Xcode expects SUPPORTED_PLATFORMS to be "macosx" (thanks @MaddTheSane!)

Xcode/SDLTest/SDLTest.xcodeproj/project.pbxproj

@@ -3124,7 +3124,7 @@
 			buildSettings = {
 				GCC_PREPROCESSOR_DEFINITIONS = HAVE_OPENGL;
 				PRODUCT_NAME = testgl2;
-				SUPPORTED_PLATFORMS = macos;
+				SUPPORTED_PLATFORMS = macosx;
 			};
 			name = Debug;
 		};
@@ -3133,7 +3133,7 @@
 			buildSettings = {
 				GCC_PREPROCESSOR_DEFINITIONS = HAVE_OPENGL;
 				PRODUCT_NAME = testgl2;
-				SUPPORTED_PLATFORMS = macos;
+				SUPPORTED_PLATFORMS = macosx;
 			};
 			name = Release;
 		};
@@ -3225,7 +3225,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				PRODUCT_NAME = testnative;
-				SUPPORTED_PLATFORMS = macos;
+				SUPPORTED_PLATFORMS = macosx;
 			};
 			name = Debug;
 		};
@@ -3233,7 +3233,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				PRODUCT_NAME = testnative;
-				SUPPORTED_PLATFORMS = macos;
+				SUPPORTED_PLATFORMS = macosx;
 			};
 			name = Release;
 		};
@@ -3309,13 +3309,13 @@
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks";
-				"LD_RUNPATH_SEARCH_PATHS[sdk=macos*]" = "@executable_path/../Frameworks";
+				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "@executable_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				MARKETING_VERSION = 1.0;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_LDFLAGS = "$(CONFIG_FRAMEWORK_LDFLAGS)";
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libsdl.$(PRODUCT_NAME)";
-				SUPPORTED_PLATFORMS = "macos iphonesimulator iphoneos appletvsimulator appletvos";
+				SUPPORTED_PLATFORMS = "macosx iphonesimulator iphoneos appletvsimulator appletvos";
 				SUPPORTS_MACCATALYST = YES;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -3447,12 +3447,12 @@
 				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks";
-				"LD_RUNPATH_SEARCH_PATHS[sdk=macos*]" = "@executable_path/../Frameworks";
+				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "@executable_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				MARKETING_VERSION = 1.0;
 				OTHER_LDFLAGS = "$(CONFIG_FRAMEWORK_LDFLAGS)";
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libsdl.$(PRODUCT_NAME)";
-				SUPPORTED_PLATFORMS = "macos iphonesimulator iphoneos appletvsimulator appletvos";
+				SUPPORTED_PLATFORMS = "macosx iphonesimulator iphoneos appletvsimulator appletvos";
 				SUPPORTS_MACCATALYST = YES;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -3632,7 +3632,7 @@
 				ALLOW_TARGET_PLATFORM_SPECIALIZATION = YES;
 				EXECUTABLE_PREFIX = lib;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SUPPORTED_PLATFORMS = "watchsimulator watchos macos iphonesimulator iphoneos driverkit appletvsimulator appletvos";
+				SUPPORTED_PLATFORMS = "watchsimulator watchos macosx iphonesimulator iphoneos driverkit appletvsimulator appletvos";
 				SUPPORTS_MACCATALYST = YES;
 			};
 			name = Debug;
@@ -3643,7 +3643,7 @@
 				ALLOW_TARGET_PLATFORM_SPECIALIZATION = YES;
 				EXECUTABLE_PREFIX = lib;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SUPPORTED_PLATFORMS = "watchsimulator watchos macos iphonesimulator iphoneos driverkit appletvsimulator appletvos";
+				SUPPORTED_PLATFORMS = "watchsimulator watchos macosx iphonesimulator iphoneos driverkit appletvsimulator appletvos";
 				SUPPORTS_MACCATALYST = YES;
 			};
 			name = Release;