put bstrwrap tests in a separate file
diff --git a/Makefile b/Makefile
index be4c9a9..def1d4e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 CFLAGS=-I inc -I test -Os
 
 QCBOR_OBJ=src/UsefulBuf.o src/qcbor_encode.o src/qcbor_decode.o 
-TEST_OBJ=test/basic_test.o
+TEST_OBJ=test/basic_test.o test/bstrwrap_tests.o
 CMD_LINE_OBJ=$(QCBOR_OBJ) $(TEST_OBJ) cmd_line_main.o
 
 qcbortest: $(CMD_LINE_OBJ)
@@ -11,7 +11,8 @@
 src/qcbor_decode.o:	inc/UsefulBuf.h inc/qcbor.h
 src/qcbor_encode.o:	inc/UsefulBuf.h inc/qcbor.h
 test/basic_test.o:	test/basic_test.h inc/qcbor.h inc/UsefulBuf.h
-cmd_line_main.o:	test/basic_test.h
+test/bstrwrap_tests.o:	test/bstrwrap_tests.h inc/qcbor.h inc/UsefulBuf.h
+cmd_line_main.o:	test/basic_test.h test/bstrwrap_tests.h
 
 clean:
 	rm $(CMD_LINE_OBJ)