diff --git a/src/corelib/global/qsystemdetection.h b/src/corelib/global/qsystemdetection.h
index a41062c2d2..75a43ed24b 100644
--- a/src/corelib/global/qsystemdetection.h
+++ b/src/corelib/global/qsystemdetection.h
@@ -263,13 +263,7 @@
 #  define QT_WATCHOS_DEPLOYMENT_TARGET_BELOW(watchos) \
       QT_DARWIN_DEPLOYMENT_TARGET_BELOW(__MAC_NA, __IPHONE_NA, __TVOS_NA, watchos)
 
-// Compatibility synonyms, do not use
-#  define QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(osx, ios) QT_MACOS_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(osx, ios)
-#  define QT_MAC_DEPLOYMENT_TARGET_BELOW(osx, ios) QT_MACOS_IOS_DEPLOYMENT_TARGET_BELOW(osx, ios)
-#  define QT_OSX_PLATFORM_SDK_EQUAL_OR_ABOVE(osx) QT_MACOS_PLATFORM_SDK_EQUAL_OR_ABOVE(osx)
-#  define QT_OSX_DEPLOYMENT_TARGET_BELOW(osx) QT_MACOS_DEPLOYMENT_TARGET_BELOW(osx)
-
-#else
+#else // !Q_OS_DARWIN
 
 #define QT_DARWIN_PLATFORM_SDK_EQUAL_OR_ABOVE(macos, ios, tvos, watchos) (0)
 #define QT_MACOS_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(macos, ios) (0)
@@ -278,9 +272,6 @@
 #define QT_TVOS_PLATFORM_SDK_EQUAL_OR_ABOVE(tvos) (0)
 #define QT_WATCHOS_PLATFORM_SDK_EQUAL_OR_ABOVE(watchos) (0)
 
-#define QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(osx, ios) (0)
-#define QT_OSX_PLATFORM_SDK_EQUAL_OR_ABOVE(osx) (0)
-
 #endif // Q_OS_DARWIN
 
 #ifdef __LSB_VERSION__