diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 7f31ff4..6df683e 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,7 @@
+2008-05-30  Danny Smith  <dannysmith@users.sourceforge.net>
+
+	* include/cpplib.h (struct cpp_dir): Add new field, canonical_name.
+
 2008-05-21  Tom Tromey  <tromey@redhat.com>
 
 	PR preprocessor/27777:
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index 76288a9..92ab291 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -508,6 +508,10 @@
   char *name;
   unsigned int len;
 
+  /* The canonicalized NAME as determined by lrealpath.  This field 
+     is only used by hosts that lack reliable inode numbers.  */
+  char *canonical_name;
+
   /* One if a system header, two if a system header that has extern
      "C" guards for C++.  */
   unsigned char sysp;