configure: declare raspberry-pico dependency on serial communication

Unbreak builds by properly declaring dependencies. This transparently
disables the driver when infrastructure is missing.

diff --git a/configure.ac b/configure.ac
index d8df1abeade283400c8b939d00999ea178c9bdff..4c232a720fdde81aacb5c1a1748f4d1a70fe8b28 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -360,7 +360,7 @@ SR_DRIVER([Norma DMM], [norma-dmm], [serial_comm])
 SR_DRIVER([OpenBench Logic Sniffer], [openbench-logic-sniffer], [serial_comm])
 SR_DRIVER([PCE PCE-322A], [pce-322a], [serial_comm])
 SR_DRIVER([Pipistrello-OLS], [pipistrello-ols], [libftdi])
-SR_DRIVER([RaspberryPI PICO], [raspberrypi-pico])
+SR_DRIVER([RaspberryPI PICO], [raspberrypi-pico], [serial_comm])
 SR_DRIVER([RDTech DPSxxxx/DPHxxxx], [rdtech-dps], [serial_comm])
 SR_DRIVER([RDTech UMXX], [rdtech-um], [serial_comm])
 SR_DRIVER([RDTech TCXX], [rdtech-tc], [serial_comm libnettle])