--- /dev/null
+--- llvm-2.6/Makefile.rules.timestamp 2009-08-19 18:04:44.000000000 -0400
++++ llvm-2.6/Makefile.rules 2009-09-09 02:10:38.287389725 -0400
+@@ -672,7 +672,7 @@
+
+ ProgInstall = $(INSTALL) $(Install.StripFlag) -m 0755
+ ScriptInstall = $(INSTALL) -m 0755
+-DataInstall = $(INSTALL) -m 0644
++DataInstall = $(INSTALL) -p -m 0644
+
+ # When compiling under Mingw/Cygwin, the tblgen tool expects Windows
+ # paths. In this case, the SYSPATH function (defined in