Ticket #13747: patch-Makefile.in

--- Makefile.in.org     2007-12-28 17:53:12.000000000 +0100
+++ Makefile.in 2007-12-29 16:53:00.000000000 +0100
@@ -675,8 +675,11 @@
        @echo "------------------------------------------------------------"
        @echo "Installing include files to $(includedir)"
        @echo "------------------------------------------------------------"
+       for dir in `cd $(srcdir)/include && find . -type d -print | grep -v \.svn`; \
+         do mkdir -p "$(DESTDIR)$(includedir)/$$dir"; \
+       done
        for inc in `cd $(srcdir)/include && find . -type f -print | grep -v \.svn`; \
-         do $(INSTALL_HEADER) -D "$(srcdir)/include/$$inc" "$(includedir)/$$inc"; \
+         do $(INSTALL_HEADER) "$(srcdir)/include/$$inc" "$(DESTDIR)$(includedir)/$$inc"; \
        done 
 
 uninstall-local: