diff --git a/externs/air/flash/data/SQLCollationType.hx b/externs/air/flash/data/SQLCollationType.hx
index 42017df56..fbe18701d 100644
--- a/externs/air/flash/data/SQLCollationType.hx
+++ b/externs/air/flash/data/SQLCollationType.hx
@@ -1,7 +1,7 @@
 package flash.data;
 
 @:native("flash.data.SQLCollationType")
-@:enum extern abstract SQLCollationType(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SQLCollationType(String)
 {
 	var BINARY;
 	var NO_CASE;
diff --git a/externs/air/flash/data/SQLColumnNameStyle.hx b/externs/air/flash/data/SQLColumnNameStyle.hx
index e6e83eeeb..c27bc6661 100644
--- a/externs/air/flash/data/SQLColumnNameStyle.hx
+++ b/externs/air/flash/data/SQLColumnNameStyle.hx
@@ -1,7 +1,7 @@
 package flash.data;
 
 @:native("flash.data.SQLColumnNameStyle")
-@:enum extern abstract SQLColumnNameStyle(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SQLColumnNameStyle(String)
 {
 	var DEFAULT;
 	var LONG;
diff --git a/externs/air/flash/data/SQLMode.hx b/externs/air/flash/data/SQLMode.hx
index 55a9f7dfb..284a3d04d 100644
--- a/externs/air/flash/data/SQLMode.hx
+++ b/externs/air/flash/data/SQLMode.hx
@@ -1,7 +1,7 @@
 package flash.data;
 
 @:native("flash.data.SQLMode")
-@:enum extern abstract SQLMode(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SQLMode(String)
 {
 	var CREATE;
 	var READ;
diff --git a/externs/air/flash/data/SQLTransactionLockType.hx b/externs/air/flash/data/SQLTransactionLockType.hx
index 7637611ad..16912db4c 100644
--- a/externs/air/flash/data/SQLTransactionLockType.hx
+++ b/externs/air/flash/data/SQLTransactionLockType.hx
@@ -1,7 +1,7 @@
 package flash.data;
 
 @:native("flash.data.SQLTransactionLockType")
-@:enum extern abstract SQLTransactionLockType(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SQLTransactionLockType(String)
 {
 	var DEFERRED;
 	var EXCLUSIVE;
diff --git a/externs/air/flash/desktop/InvokeEventReason.hx b/externs/air/flash/desktop/InvokeEventReason.hx
index ba94a5729..216be7d91 100644
--- a/externs/air/flash/desktop/InvokeEventReason.hx
+++ b/externs/air/flash/desktop/InvokeEventReason.hx
@@ -1,7 +1,7 @@
 package flash.desktop;
 
 @:native("flash.desktop.InvokeEventReason")
-@:enum extern abstract InvokeEventReason(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract InvokeEventReason(String)
 {
 	var LOGIN;
 	var NOTIFICATION;
diff --git a/externs/air/flash/desktop/NativeDragActions.hx b/externs/air/flash/desktop/NativeDragActions.hx
index b6e43f1aa..d40e9168c 100644
--- a/externs/air/flash/desktop/NativeDragActions.hx
+++ b/externs/air/flash/desktop/NativeDragActions.hx
@@ -1,7 +1,7 @@
 package flash.desktop;
 
 @:native("flash.desktop.NativeDragActions")
-@:enum extern abstract NativeDragActions(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NativeDragActions(String)
 {
 	var COPY;
 	var LINK;
diff --git a/externs/air/flash/desktop/NotificationType.hx b/externs/air/flash/desktop/NotificationType.hx
index 7769d22ab..8066974bb 100644
--- a/externs/air/flash/desktop/NotificationType.hx
+++ b/externs/air/flash/desktop/NotificationType.hx
@@ -1,7 +1,7 @@
 package flash.desktop;
 
 @:native("flash.desktop.NotificationType")
-@:enum extern abstract NotificationType(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NotificationType(String)
 {
 	var CRITICAL;
 	var INFORMATIONAL;
diff --git a/externs/air/flash/desktop/SystemIdleMode.hx b/externs/air/flash/desktop/SystemIdleMode.hx
index 3e230584d..96d9d2b99 100644
--- a/externs/air/flash/desktop/SystemIdleMode.hx
+++ b/externs/air/flash/desktop/SystemIdleMode.hx
@@ -1,7 +1,7 @@
 package flash.desktop;
 
 @:native("flash.desktop.SystemIdleMode")
-@:enum extern abstract SystemIdleMode(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SystemIdleMode(String)
 {
 	var KEEP_AWAKE;
 	var NORMAL;
diff --git a/externs/air/flash/display/NativeWindowDisplayState.hx b/externs/air/flash/display/NativeWindowDisplayState.hx
index 0fc2b7996..f90cfc645 100644
--- a/externs/air/flash/display/NativeWindowDisplayState.hx
+++ b/externs/air/flash/display/NativeWindowDisplayState.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.NativeWindowDisplayState")
-@:enum extern abstract NativeWindowDisplayState(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NativeWindowDisplayState(String)
 {
 	var MAXIMIZED;
 	var MINIMIZED;
diff --git a/externs/air/flash/display/NativeWindowRenderMode.hx b/externs/air/flash/display/NativeWindowRenderMode.hx
index 9d453d776..7f4d8a48a 100644
--- a/externs/air/flash/display/NativeWindowRenderMode.hx
+++ b/externs/air/flash/display/NativeWindowRenderMode.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.NativeWindowRenderMode")
-@:enum extern abstract NativeWindowRenderMode(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NativeWindowRenderMode(String)
 {
 	var AUTO;
 	var CPU;
diff --git a/externs/air/flash/display/NativeWindowResize.hx b/externs/air/flash/display/NativeWindowResize.hx
index b60350516..3adf87ef6 100644
--- a/externs/air/flash/display/NativeWindowResize.hx
+++ b/externs/air/flash/display/NativeWindowResize.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.NativeWindowResize")
-@:enum extern abstract NativeWindowResize(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NativeWindowResize(String)
 {
 	var BOTTOM;
 	var BOTTOM_LEFT;
diff --git a/externs/air/flash/display/NativeWindowSystemChrome.hx b/externs/air/flash/display/NativeWindowSystemChrome.hx
index b005630d7..33a39cc12 100644
--- a/externs/air/flash/display/NativeWindowSystemChrome.hx
+++ b/externs/air/flash/display/NativeWindowSystemChrome.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.NativeWindowSystemChrome")
-@:enum extern abstract NativeWindowSystemChrome(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NativeWindowSystemChrome(String)
 {
 	var ALTERNATE;
 	var NONE;
diff --git a/externs/air/flash/display/NativeWindowType.hx b/externs/air/flash/display/NativeWindowType.hx
index b8eab2e03..5a278235b 100644
--- a/externs/air/flash/display/NativeWindowType.hx
+++ b/externs/air/flash/display/NativeWindowType.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.NativeWindowType")
-@:enum extern abstract NativeWindowType(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NativeWindowType(String)
 {
 	var LIGHTWEIGHT;
 	var NORMAL;
diff --git a/externs/air/flash/display/StageAspectRatio.hx b/externs/air/flash/display/StageAspectRatio.hx
index 1777baba2..e663ce877 100644
--- a/externs/air/flash/display/StageAspectRatio.hx
+++ b/externs/air/flash/display/StageAspectRatio.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.StageAspectRatio")
-@:enum extern abstract StageAspectRatio(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract StageAspectRatio(String)
 {
 	var ANY;
 	var LANDSCAPE;
diff --git a/externs/air/flash/display/StageOrientation.hx b/externs/air/flash/display/StageOrientation.hx
index 5fc5fb0e8..bb85291a4 100644
--- a/externs/air/flash/display/StageOrientation.hx
+++ b/externs/air/flash/display/StageOrientation.hx
@@ -1,7 +1,7 @@
 package flash.display;
 
 @:native("flash.display.StageOrientation")
-@:enum extern abstract StageOrientation(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract StageOrientation(String)
 {
 	var DEFAULT;
 	var ROTATED_LEFT;
diff --git a/externs/air/flash/display3D/Context3DProfile.hx b/externs/air/flash/display3D/Context3DProfile.hx
index 1a39d79b5..c7cec015d 100644
--- a/externs/air/flash/display3D/Context3DProfile.hx
+++ b/externs/air/flash/display3D/Context3DProfile.hx
@@ -1,7 +1,7 @@
 package flash.display3D;
 
 @:native("flash.display3D.Context3DProfile")
-@:enum extern abstract Context3DProfile(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract Context3DProfile(String)
 {
 	var BASELINE;
 	var BASELINE_CONSTRAINED;
diff --git a/externs/air/flash/errors/SQLErrorOperation.hx b/externs/air/flash/errors/SQLErrorOperation.hx
index 2d8494011..b0011cbad 100644
--- a/externs/air/flash/errors/SQLErrorOperation.hx
+++ b/externs/air/flash/errors/SQLErrorOperation.hx
@@ -1,7 +1,7 @@
 package flash.errors;
 
 @:native("flash.errors.SQLErrorOperation")
-@:enum extern abstract SQLErrorOperation(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SQLErrorOperation(String)
 {
 	var ANALYZE;
 	var ATTACH;
diff --git a/externs/air/flash/events/TouchEventIntent.hx b/externs/air/flash/events/TouchEventIntent.hx
index 53e6dd1a1..7df2d0a5a 100644
--- a/externs/air/flash/events/TouchEventIntent.hx
+++ b/externs/air/flash/events/TouchEventIntent.hx
@@ -1,7 +1,7 @@
 package flash.events;
 
 @:native("flash.events.TouchEventIntent")
-@:enum extern abstract TouchEventIntent(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract TouchEventIntent(String)
 {
 	var ERASER;
 	var PEN;
diff --git a/externs/air/flash/filesystem/FileMode.hx b/externs/air/flash/filesystem/FileMode.hx
index 39247e9c3..db258317e 100644
--- a/externs/air/flash/filesystem/FileMode.hx
+++ b/externs/air/flash/filesystem/FileMode.hx
@@ -1,7 +1,7 @@
 package flash.filesystem;
 
 @:native("flash.filesystem.FileMode")
-@:enum extern abstract FileMode(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract FileMode(String)
 {
 	var APPEND;
 	var READ;
diff --git a/externs/air/flash/media/AudioPlaybackMode.hx b/externs/air/flash/media/AudioPlaybackMode.hx
index 4fef3e6e8..600373424 100644
--- a/externs/air/flash/media/AudioPlaybackMode.hx
+++ b/externs/air/flash/media/AudioPlaybackMode.hx
@@ -1,7 +1,7 @@
 package flash.media;
 
 @:native("flash.media.AudioPlaybackMode")
-@:enum extern abstract AudioPlaybackMode(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract AudioPlaybackMode(String)
 {
 	var AMBIENT;
 	var MEDIA;
diff --git a/externs/air/flash/media/CameraPosition.hx b/externs/air/flash/media/CameraPosition.hx
index 54f61fe43..db892195e 100644
--- a/externs/air/flash/media/CameraPosition.hx
+++ b/externs/air/flash/media/CameraPosition.hx
@@ -1,7 +1,7 @@
 package flash.media;
 
 @:native("flash.media.CameraPosition")
-@:enum extern abstract CameraPosition(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract CameraPosition(String)
 {
 	var BACK;
 	var FRONT;
diff --git a/externs/air/flash/media/MediaType.hx b/externs/air/flash/media/MediaType.hx
index c4ff250b9..ca1b64cca 100644
--- a/externs/air/flash/media/MediaType.hx
+++ b/externs/air/flash/media/MediaType.hx
@@ -1,7 +1,7 @@
 package flash.media;
 
 @:native("flash.media.MediaType")
-@:enum extern abstract MediaType(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract MediaType(String)
 {
 	var IMAGE;
 	var VIDEO;
diff --git a/externs/air/flash/net/IPVersion.hx b/externs/air/flash/net/IPVersion.hx
index 758ac83eb..b6c6abe50 100644
--- a/externs/air/flash/net/IPVersion.hx
+++ b/externs/air/flash/net/IPVersion.hx
@@ -1,7 +1,7 @@
 package flash.net;
 
 @:native("flash.net.IPVersion")
-@:enum extern abstract IPVersion(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract IPVersion(String)
 {
 	var IPV4;
 	var IPV6;
diff --git a/externs/air/flash/notifications/NotificationStyle.hx b/externs/air/flash/notifications/NotificationStyle.hx
index 49e12dcf0..35a3272ec 100644
--- a/externs/air/flash/notifications/NotificationStyle.hx
+++ b/externs/air/flash/notifications/NotificationStyle.hx
@@ -1,7 +1,7 @@
 package flash.notifications;
 
 @:native("flash.notifications.NotificationStyle")
-@:enum extern abstract NotificationStyle(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract NotificationStyle(String)
 {
 	var ALERT;
 	var BADGE;
diff --git a/externs/air/flash/printing/PaperSize.hx b/externs/air/flash/printing/PaperSize.hx
index 9b415175d..2e50a25e3 100644
--- a/externs/air/flash/printing/PaperSize.hx
+++ b/externs/air/flash/printing/PaperSize.hx
@@ -1,7 +1,7 @@
 package flash.printing;
 
 @:native("flash.printing.PaperSize")
-@:enum extern abstract PaperSize(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract PaperSize(String)
 {
 	var A4;
 	var A5;
diff --git a/externs/air/flash/printing/PrintMethod.hx b/externs/air/flash/printing/PrintMethod.hx
index 6f2f4d2af..c8f57b03d 100644
--- a/externs/air/flash/printing/PrintMethod.hx
+++ b/externs/air/flash/printing/PrintMethod.hx
@@ -1,7 +1,7 @@
 package flash.printing;
 
 @:native("flash.printing.PrintMethod")
-@:enum extern abstract PrintMethod(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract PrintMethod(String)
 {
 	var AUTO;
 	var BITMAP;
diff --git a/externs/air/flash/security/ReferencesValidationSetting.hx b/externs/air/flash/security/ReferencesValidationSetting.hx
index affc25b9c..1c946d554 100644
--- a/externs/air/flash/security/ReferencesValidationSetting.hx
+++ b/externs/air/flash/security/ReferencesValidationSetting.hx
@@ -1,7 +1,7 @@
 package flash.security;
 
 @:native("flash.security.ReferencesValidationSetting")
-@:enum extern abstract ReferencesValidationSetting(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract ReferencesValidationSetting(String)
 {
 	var NEVER;
 	var VALID_IDENTITY;
diff --git a/externs/air/flash/security/RevocationCheckSettings.hx b/externs/air/flash/security/RevocationCheckSettings.hx
index cd6b2b522..6bfeb017f 100644
--- a/externs/air/flash/security/RevocationCheckSettings.hx
+++ b/externs/air/flash/security/RevocationCheckSettings.hx
@@ -1,7 +1,7 @@
 package flash.security;
 
 @:native("flash.security.RevocationCheckSettings")
-@:enum extern abstract RevocationCheckSettings(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract RevocationCheckSettings(String)
 {
 	var ALWAYS_REQUIRED;
 	var BEST_EFFORT;
diff --git a/externs/air/flash/security/SignatureStatus.hx b/externs/air/flash/security/SignatureStatus.hx
index edbc6eb32..a8df8686b 100644
--- a/externs/air/flash/security/SignatureStatus.hx
+++ b/externs/air/flash/security/SignatureStatus.hx
@@ -1,7 +1,7 @@
 package flash.security;
 
 @:native("flash.security.SignatureStatus")
-@:enum extern abstract SignatureStatus(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SignatureStatus(String)
 {
 	var INVALID;
 	var UNKNOWN;
diff --git a/externs/air/flash/security/SignerTrustSettings.hx b/externs/air/flash/security/SignerTrustSettings.hx
index 75beb3af8..9c3ab6c5f 100644
--- a/externs/air/flash/security/SignerTrustSettings.hx
+++ b/externs/air/flash/security/SignerTrustSettings.hx
@@ -1,7 +1,7 @@
 package flash.security;
 
 @:native("flash.security.SignerTrustSettings")
-@:enum extern abstract SignerTrustSettings(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SignerTrustSettings(String)
 {
 	var CODE_SIGNING;
 	var PLAYLIST_SIGNING;
diff --git a/externs/air/flash/text/AutoCapitalize.hx b/externs/air/flash/text/AutoCapitalize.hx
index bcdb29f85..9c47c449d 100644
--- a/externs/air/flash/text/AutoCapitalize.hx
+++ b/externs/air/flash/text/AutoCapitalize.hx
@@ -1,7 +1,7 @@
 package flash.text;
 
 @:native("flash.text.AutoCapitalize")
-@:enum extern abstract AutoCapitalize(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract AutoCapitalize(String)
 {
 	var ALL;
 	var NONE;
diff --git a/externs/air/flash/text/ReturnKeyLabel.hx b/externs/air/flash/text/ReturnKeyLabel.hx
index 6f138a34d..598b406e3 100644
--- a/externs/air/flash/text/ReturnKeyLabel.hx
+++ b/externs/air/flash/text/ReturnKeyLabel.hx
@@ -1,7 +1,7 @@
 package flash.text;
 
 @:native("flash.text.ReturnKeyLabel")
-@:enum extern abstract ReturnKeyLabel(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract ReturnKeyLabel(String)
 {
 	var DEFAULT;
 	var DONE;
diff --git a/externs/air/flash/text/SoftKeyboardType.hx b/externs/air/flash/text/SoftKeyboardType.hx
index 27da6308a..d2080237b 100644
--- a/externs/air/flash/text/SoftKeyboardType.hx
+++ b/externs/air/flash/text/SoftKeyboardType.hx
@@ -1,7 +1,7 @@
 package flash.text;
 
 @:native("flash.text.SoftKeyboardType")
-@:enum extern abstract SoftKeyboardType(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract SoftKeyboardType(String)
 {
 	var CONTACT;
 	var DEFAULT;
diff --git a/externs/air/flash/text/StageTextClearButtonMode.hx b/externs/air/flash/text/StageTextClearButtonMode.hx
index fdb945a1e..c084af6b6 100644
--- a/externs/air/flash/text/StageTextClearButtonMode.hx
+++ b/externs/air/flash/text/StageTextClearButtonMode.hx
@@ -1,7 +1,7 @@
 package flash.text;
 
 @:native("flash.text.StageTextClearButtonMode")
-@:enum extern abstract StageTextClearButtonMode(String)
+#if (haxe_ver >= 4.0) extern enum #else @:extern @:enum #end abstract StageTextClearButtonMode(String)
 {
 	var ALWAYS;
 	var NEVER;