fixed memory leaks

Makefile.in

@@ -268,6 +268,7 @@ PATH_SEPARATOR = @PATH_SEPARATOR@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
+VALGRIND = @VALGRIND@
 VERSION = @VERSION@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
@@ -353,6 +354,7 @@ common_SOURCES = \
 	rcache.c \
 	rcache.h
 
+@HAVE_VALGRIND_TRUE@VALGRIND_OPT = --tool=memcheck
 bin_TESTS = \
 	cflexer_test \
 	cfparser_test \
@@ -875,9 +877,9 @@ run: $(sbin_PROGRAMS)
 
 test: $(bin_TESTS)
 	@for test in $(bin_TESTS); do \
-	  echo === Test $${test} ==; \
-	  ./$${test}; \
-	  echo === Done $${test} ==; \
+	  echo ======= Test $${test} ======; \
+	  $(VALGRIND) $(VALGRIND_OPT) ./$${test}; \
+	  echo ====== Done $${test} ======; \
 	done
 
 clean-local: