--- nono/lib/Makefile	2026/04/29 17:05:26	1.1.1.8
+++ nono/lib/Makefile	2026/04/29 17:05:30	1.1.1.9
@@ -16,6 +16,7 @@ CXXSRCS_lib=	\
 	bitmap.cpp	\
 	bitops.cpp	\
 	config.cpp	\
+	exttostr.cpp	\
 	object.cpp	\
 	object_id.cpp	\
 	logger.cpp	\
@@ -49,4 +50,7 @@ libnnlib.a:	${OBJS_lib}
 test_mystring: test_mystring.o libnnlib.a
 	${CXX} ${LDFLAGS} -o $@ $> ${LIBS} libnnlib.a
 
+test_exttostr:	exttostr.cpp mystring.o
+	${CXX} ${LDFLAGS} -I.. -DTEST -o $@ $>
+
 .include "../Makefile.rule"