add notion of topdir to Makefile.lite build system
diff --git a/src/test_libFLAC/Makefile.lite b/src/test_libFLAC/Makefile.lite
index f348b15..b4c1f49 100644
--- a/src/test_libFLAC/Makefile.lite
+++ b/src/test_libFLAC/Makefile.lite
@@ -19,8 +19,10 @@
# GNU makefile
#
+topdir = ../..
+
PROGRAM_NAME = test_libFLAC
-INCLUDES = -I../libFLAC/include -I../../include
+INCLUDES = -I../libFLAC/include -I$(topdir)/include
LIBS = -lFLAC -lm
OBJS = \
bitbuffer.o \
@@ -33,6 +35,6 @@
metadata_object.o \
metadata_utils.o
-include ../../build/exe.mk
+include $(topdir)/build/exe.mk
# DO NOT DELETE THIS LINE -- make depend depends on it.