The patch in summary is touching both Makefile.in and Makefile.am, probably to
avoid autotools rebuild.
This treatment is usually reserved for a few selected system packages that
cannot have their autotool scripts rebuilt.
This _could_ cause maintainermode-driven rebuild (see
http://blog.flameeyes.eu/articles/2008/06/13/maintaner-mode ), which is
something we should be avoiding as much as possible.
Please just patch Makefile.am and/or configure.in/.ac and rebuild autotools,
unless you have very good reasons not to.