sdrangel server on raspberry pi: can't see sdrplay rspdx

[marrem]

I am running:

CONTAINER ID   IMAGE                      COMMAND                  CREATED          STATUS         PORTS                                                                                                                             NAMES
659c8e9a5c06   sdrangel/server16:latest   "/start.sh"              12 minutes ago   Up 7 minutes   0.0.0.0:8091->8091/tcp, :::8091->8091/tcp, 0.0.0.0:8887->8887/tcp, :::8887->8887/tcp, 0.0.0.0:9090->9090/udp, :::9090->9090/udp   sdrangel_1
355d2ba70592   sdrangelcli:latest         "http-server"            12 minutes ago   Up 7 minutes   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp                                                                                         sdrangelcli_1
b01ed651e090   sdrangelspectrum:latest    "http-server '-p 808…"   12 minutes ago   Up 6 minutes   0.0.0.0:8081->8081/tcp, :::8081->8081/tcp                                                                                         sdrangelspectrum_1

On a raspberry pi 4
Ubuntu 22.04.3 LTS
Linux sdrserver 5.15.0-1036-raspi #39-Ubuntu SMP PREEMPT Mon Aug 21 11:46:10 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux
Docker installed via snap

I have a SDRplay RSPdx attached. I have installed the sdrapi service. When I start the SoapyRemote server, I can connect to it via remote programs like CubicSDR.

But when I connect from SDRangel on my Mac to the server via the 'remote' plugin, it reports some information:

... but there is no way to see / choose / control the device.

[rudis]

The problem seems to be that libinputsdrplayv3.so is not build because the necessary header/libraries are not found:

-- SDRPLAY LIBRARIES SDRPLAY_LIBRARIES-NOTFOUND
-- SDRPLAY INCLUDE DIRS SDRPLAY_INCLUDE_DIR-NOTFOUND
-- Could NOT find SDRPLAY (missing: SDRPLAY_LIBRARIES SDRPLAY_INCLUDE_DIR)

The following hacky patch fixes the issue (at least for a local sdrangel installation), but I don't know how to best integrate this into the docker build:

diff --git i/cmake/Modules/FindSDRplay.cmake w/cmake/Modules/FindSDRplay.cmake
index 226d8977a..962422642 100644
--- i/cmake/Modules/FindSDRplay.cmake
+++ w/cmake/Modules/FindSDRplay.cmake
@@ -6,6 +6,7 @@ IF(NOT SDRPLAY_FOUND)
         HINTS ${SDRPLAY_DIR}/inc
         PATHS /usr/local/include
               /usr/include
+              /opt/install/libsdrplay/include
     )
 
     FIND_LIBRARY(
@@ -15,6 +16,7 @@ IF(NOT SDRPLAY_FOUND)
         PATHS /usr/local/lib
               /usr/lib
               /usr/lib64
+              /opt/install/libsdrplay/lib
     )
 
     message(STATUS "SDRPLAY LIBRARIES " ${SDRPLAY_LIBRARIES})