+if JSON
+libpsensor_a_SOURCES += psensor_json.h psensor_json.c
+LIBS += $(JSON_LIBS)
+AM_CPPFLAGS += $(JSON_CFLAGS)
+endif
+
+if LIBUDISKS2
+libpsensor_a_SOURCES += pudisks2.c
+LIBS += $(LIBUDISKS2_LIBS)
+AM_CPPFLAGS += $(LIBUDISKS2_CFLAGS)
+endif
+