### Eclipse Workspace Patch 1.0
#P org.eclipse.cdt.ui
Index: src/org/eclipse/cdt/internal/ui/CProjectAdapterFactory.java
===================================================================
RCS file: /cvsroot/tools/org.eclipse.cdt/all/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/CProjectAdapterFactory.java,v
retrieving revision 1.1
diff -u -r1.1 CProjectAdapterFactory.java
--- src/org/eclipse/cdt/internal/ui/CProjectAdapterFactory.java	18 Jan 2007 13:01:51 -0000	1.1
+++ src/org/eclipse/cdt/internal/ui/CProjectAdapterFactory.java	12 Feb 2007 23:17:29 -0000
@@ -11,6 +11,7 @@
 
 package org.eclipse.cdt.internal.ui;
 
+import org.eclipse.core.expressions.IEnablementVetoHolder;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.IAdapterFactory;
 
@@ -23,8 +24,18 @@
  */
 public class CProjectAdapterFactory implements IAdapterFactory {
 
-	private static final Class[] ADAPTERS = { IProject.class };
+	private static final Class[] ADAPTERS = { IEnablementVetoHolder.class, IProject.class };
 
+	private final IEnablementVetoHolder vetoHolder;
+	
+	public CProjectAdapterFactory() {
+		vetoHolder = new IEnablementVetoHolder() {
+			public boolean vetoes(String id) {
+				return "org.eclipse.ui.propertypages.project.reference".equals(id); //$NON-NLS-1$
+			}
+		};
+	}
+	
 	/*
 	 * @see org.eclipse.core.runtime.IAdapterFactory#getAdapter(java.lang.Object, java.lang.Class)
 	 */
@@ -32,6 +43,9 @@
 		if (IProject.class.equals(adapterType)) {
 			return ((ICProject)adaptableObject).getProject();
 		}
+		if(IEnablementVetoHolder.class.equals(adapterType)) {
+			return vetoHolder;
+		}
 		return null;
 	}
 
@@ -41,5 +55,4 @@
 	public Class[] getAdapterList() {
 		return ADAPTERS;
 	}
-
 }
Index: plugin.xml
===================================================================
RCS file: /cvsroot/tools/org.eclipse.cdt/all/org.eclipse.cdt.ui/plugin.xml,v
retrieving revision 1.233
diff -u -r1.233 plugin.xml
--- plugin.xml	6 Feb 2007 21:57:32 -0000	1.233
+++ plugin.xml	12 Feb 2007 23:17:29 -0000
@@ -42,6 +42,7 @@
             class="org.eclipse.cdt.internal.ui.CProjectAdapterFactory"
             adaptableType="org.eclipse.cdt.core.model.ICProject">
          <adapter type="org.eclipse.core.resources.IProject"/>
+         <adapter type="org.eclipse.core.expressions.IEnablementVetoHolder"/>
       </factory>
    </extension>