diff --git a/ChangeLog b/ChangeLog
index c1dda1a70..2acdb3252 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2007-08-22 Fred Kiefer <FredKiefer@gmx.de>
+
+	* Headers/AppKit/NSFontPanel.h: Add MacOSX 10.3 constants.
+
 2007-08-21 Fred Kiefer <FredKiefer@gmx.de>
 
 	* Source/NSAttributedString.m (-fixFontAttributeInRange:): Ignore
diff --git a/Headers/AppKit/NSFontPanel.h b/Headers/AppKit/NSFontPanel.h
index 92b9ef196..8ee0e56a3 100644
--- a/Headers/AppKit/NSFontPanel.h
+++ b/Headers/AppKit/NSFontPanel.h
@@ -119,6 +119,34 @@ enum {
 
 @end
 
+#if OS_API_VERSION(MAC_OS_X_VERSION_10_3, GS_API_LATEST)
+enum
+{
+	NSFontPanelFaceModeMask = 1 << 0,
+	NSFontPanelSizeModeMask = 1 << 1,
+	NSFontPanelCollectionModeMask = 1 << 2,
+
+#if OS_API_VERSION(MAC_OS_X_VERSION_10_4, GS_API_LATEST)
+	NSFontPanelUnderlineEffectModeMask = 1 << 8,
+	NSFontPanelStrikethroughEffectModeMask = 1 << 9,
+	NSFontPanelTextColorEffectModeMask = 1 << 10,
+	NSFontPanelDocumentColorEffectModeMask = 1 << 11,
+	NSFontPanelShadowEffectModeMask = 1 << 12,
+	NSFontPanelAllEffectsModeMask = 0xfff00,
+#endif
+
+	NSFontPanelStandardModesMask = 0xffff,
+	NSFontPanelAllModesMask = 0xffffffff
+};
+
+@interface NSObject (NSFontPanelValidation)
+
+- (unsigned int)validModesForFontPanel:(NSFontPanel *)fontPanel;
+
+@end
+
+#endif
+
 #endif // _GNUstep_H_NSFontPanel