### Eclipse Workspace Patch 1.0
#P org.eclipse.cdt.core
Index: model/org/eclipse/cdt/internal/core/model/IncludeReference.java
===================================================================
RCS file: /home/tools/org.eclipse.cdt-core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/IncludeReference.java,v
retrieving revision 1.15
diff -u -r1.15 IncludeReference.java
--- model/org/eclipse/cdt/internal/core/model/IncludeReference.java	23 Jun 2005 16:01:07 -0000	1.15
+++ model/org/eclipse/cdt/internal/core/model/IncludeReference.java	21 Sep 2006 18:43:13 -0000
@@ -127,6 +127,7 @@
 	 * @see org.eclipse.cdt.core.model.IIncludeReference#isOnIncludeEntry(org.eclipse.core.runtime.IPath)
 	 */
 	public boolean isOnIncludeEntry(IPath path) {
+		path = Util.getCanonicalPath(path);
 		if (fIncludeEntry.getIncludePath().isPrefixOf(path) 
 				&& !CoreModelUtil.isExcluded(path, fIncludeEntry.fullExclusionPatternChars())) {
 			return true;
Index: model/org/eclipse/cdt/internal/core/model/Util.java
===================================================================
RCS file: /home/tools/org.eclipse.cdt-core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/Util.java,v
retrieving revision 1.20
diff -u -r1.20 Util.java
--- model/org/eclipse/cdt/internal/core/model/Util.java	23 Jun 2006 17:26:52 -0000	1.20
+++ model/org/eclipse/cdt/internal/core/model/Util.java	21 Sep 2006 18:43:13 -0000
@@ -25,9 +25,7 @@
 import org.eclipse.cdt.internal.core.model.IDebugLogConstants.DebugLogConstant;
 import org.eclipse.cdt.internal.core.util.CharArrayBuffer;
 import org.eclipse.core.resources.IFile;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.*;
 
 public class Util implements ICLogConstants {
 	public static boolean VERBOSE_PARSER = false;
@@ -36,6 +34,12 @@
 
 	public static String LINE_SEPARATOR = System.getProperty("line.separator"); //$NON-NLS-1$
 
+	private static boolean hasCaseInsensitiveFileSystem;
+	
+	static {
+		hasCaseInsensitiveFileSystem = Platform.getOS().equals(Platform.OS_WIN32);
+	}
+	
 	private Util() {
 	}
 
@@ -421,5 +425,17 @@
 		return null;
 	}
 
+	/**
+	 * Get a canonical IPath, for use in IPath#isPrefixOf, #equals, etc.
+	 * to overcome a bug in Path that doesn't account for 
+	 * case-insensitive filesystems.
+	 */
+	public static IPath getCanonicalPath(IPath path) {
+		if (hasCaseInsensitiveFileSystem) {
+			// be stupid for now (instead of using File#toCanonicalFile())
+			return new Path(path.toOSString().toLowerCase());
+		}
+		return path;
+	}
 
 }
Index: model/org/eclipse/cdt/internal/core/model/IncludeEntry.java
===================================================================
RCS file: /home/tools/org.eclipse.cdt-core/org.eclipse.cdt.core/model/org/eclipse/cdt/internal/core/model/IncludeEntry.java,v
retrieving revision 1.22
diff -u -r1.22 IncludeEntry.java
--- model/org/eclipse/cdt/internal/core/model/IncludeEntry.java	23 Jun 2006 17:52:41 -0000	1.22
+++ model/org/eclipse/cdt/internal/core/model/IncludeEntry.java	21 Sep 2006 18:43:13 -0000
@@ -24,7 +24,8 @@
 	public IncludeEntry(IPath resourcePath, IPath basePath, IPath baseRef, IPath includePath, boolean isSystemInclude,
 			IPath[] exclusionPatterns, boolean isExported) {
 		super(IPathEntry.CDT_INCLUDE, basePath, baseRef, resourcePath, exclusionPatterns, isExported);
-		this.includePath = (includePath == null) ? Path.EMPTY : includePath;
+		this.includePath = (includePath == null) ? Path.EMPTY : 
+			Util.getCanonicalPath(includePath);
 		this.isSystemInclude = isSystemInclude;
 	}