Fix multiCameraServer frc.json location

Author: PeterJohnson

deps/tools/multiCameraServer/Makefile

@@ -17,6 +17,7 @@
 DEPS_CFLAGS?=$(shell pkg-config --cflags cameraserver ntcore wpiutil)
 DEPS_LIBS?=$(shell pkg-config --libs --static cameraserver ntcore wpiutil)
 CXXFLAGS?=-std=c++20
+FRC_JSON?=/boot/frc.json
 
 .PHONY: all clean
 
@@ -26,4 +27,4 @@ clean:
 	rm -f multiCameraServer
 
 multiCameraServer: src/multiCameraServer.cpp
-	${CXX} -pthread -g -o $@ ${CXXFLAGS} ${DEPS_CFLAGS} $^ ${DEPS_LIBS}
+	${CXX} -pthread -g -o $@ ${CXXFLAGS} ${DEPS_CFLAGS} '-DFRC_JSON="${FRC_JSON}"' $^ ${DEPS_LIBS}

deps/tools/multiCameraServer/src/multiCameraServer.cpp

@@ -59,8 +59,8 @@
    }
  */
 
-#ifdef __RASPBIAN__
-static const char* configFile = "/boot/frc.json";
+#ifdef FRC_JSON
+static const char* configFile = FRC_JSON;
 #else
 static const char* configFile = "frc.json";
 #endif