Fix breakage caused by commit da17e370 (missing dependency in Makefile)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

Makefile.in

@@ -27,6 +27,7 @@ all:: subs
 
 subs:
 	@for i in $(SUBS) ; do if test -d `dirname $$i` ; then $(MAKE) $$i ; fi ; done
+	@(test -d lib/et && cd lib/et && $(MAKE) compile_et)
 	@(test -d lib/ext2fs && cd lib/ext2fs && $(MAKE) ext2_err.h)
 
 progs: subs all-progs-recursive