+- On Linux, abstract unix domain sockets are used unconditionally.
+- The "install" target no longer strips executables, the new
+ install-strip target can be used to get the old behaviour.
+- The clean targets have been renamed: clean2 is gone, and the new
+ mostlyclean removes only the executables and object files.
+- New target: check (identical to test).
+- The DESTDIR make variable is honored to prepend a path to the
+ installation directory. This feature is orthogonal to the --prefix
+ option to configure.