endif
if NEED_USB
-libsigrok_hw_common_la_SOURCES += ezusb.c usb.c
+libsigrok_hw_common_la_SOURCES += ezusb.c usb.c scpi_usbtmc_libusb.c
+endif
+
+if NEED_VISA
+libsigrok_hw_common_la_SOURCES += scpi_visa.c
endif
libsigrok_hw_common_la_LIBADD = dmm/libsigrok_hw_common_dmm.la