Build internal avl testing tools correctly

libraries/liblutil/Makefile.in

@@ -41,10 +41,10 @@ OBJS	= base64.o entropy.o sasl.o signal.o hash.o passfile.o \
 	@LIBOBJS@ $(@PLAT@_OBJS)
 
 testavl: $(XLIBS) testavl.o
-	(LTLINK) -o $@ testavl.o $(LIBS)
+	$(LTLINK) -o $@ testavl.o $(LIBS)
 
 testtavl: $(XLIBS) testtavl.o
-	(LTLINK) -o $@ testtavl.o $(LIBS)
+	$(LTLINK) -o $@ testtavl.o $(LIBS)
 
 # These rules are for a Mingw32 build, specifically.
 # It's ok for them to be here because the clean rule is harmless, and