# Local lib, this is NOT meant to be installed!
noinst_LTLIBRARIES = libsigrok_hw_common.la
-libsigrok_hw_common_la_SOURCES = serial.c
+libsigrok_hw_common_la_SOURCES =
+
+if NEED_SERIAL
+libsigrok_hw_common_la_SOURCES += serial.c
+endif
if NEED_USB
libsigrok_hw_common_la_SOURCES += ezusb.c usb.c