Oops forgot to add c14n.h to the makefile.am, Daniel
diff --git a/include/libxml/Makefile.am b/include/libxml/Makefile.am
index 5a93386..e460c88 100644
--- a/include/libxml/Makefile.am
+++ b/include/libxml/Makefile.am
@@ -31,7 +31,8 @@
 		DOCBparser.h \
 		catalog.h \
 		threads.h \
-		globals.h
+		globals.h \
+		c14n.h
 
 install-exec-hook:
 	$(mkinstalldirs) $(DESTDIR)$(xmlincdir)