cmd: start work on an ifquery command

Makefile

@@ -7,12 +7,23 @@ LIBIFUPDOWN_SRC = \
 	libifupdown/interface.c
 
 LIBIFUPDOWN_OBJ = ${LIBIFUPDOWN_SRC:.c=.o}
+LIBIFUPDOWN_LIB = libifupdown.a
 
 
+CMDS = \
+	ifquery
+
+LIBS = ${LIBIFUPDOWN_LIB}
+
+IFQUERY_SRC = cmd/ifquery.c
+IFQUERY_OBJ = ${IFQUERY_SRC:.c=.o}
+ifquery: ${LIBS} ${IFQUERY_OBJ}
+	${CC} -o $@ ${IFQUERY_OBJ} ${LIBS}
+
 libifupdown.a: ${LIBIFUPDOWN_OBJ}
 	ar -rcs $@ ${LIBIFUPDOWN_OBJ}
 
-all: libifupdown.a
+all: libifupdown.a ${CMDS}
 
 clean:
 	rm -f ${LIBIFUPDOWN_OBJ}