Make the OLED script work on Bullseye (#470)

* Add check for gcc 10+ and inject compiler flaggs

* Bump Python libraries

src/oled_monitor/requirements.txt

@@ -2,7 +2,7 @@ Adafruit-Blinka==6.15.0
 adafruit-circuitpython-busdevice==5.1.0
 adafruit-circuitpython-framebuf==1.4.7
 adafruit-circuitpython-ssd1306==2.12.2
-Adafruit-PlatformDetect==3.13.0
+Adafruit-PlatformDetect==3.17.2
 Adafruit-PureIO==1.1.9
 Pillow==8.4.0
 pkg-resources==0.0.0
@@ -12,5 +12,5 @@ pyusb==1.2.1
 rpi-ws281x==4.3.0
 RPi.GPIO==0.7.0
 sysv-ipc==1.1.0
-protobuf==3.17.3
+protobuf==3.19.1
 unidecode==1.3.2

src/oled_monitor/start.sh

@@ -57,6 +57,14 @@ if ! i2cdetect -y 1 &> /dev/null ; then
     echo "i2cdetect -y 1 did not find a screen."
     exit 2
 fi
+
+# Compiler flags needed for gcc v10 and up
+if [[ `gcc --version | awk '/gcc/' | awk -F ' ' '{print $3}' | awk -F '.' '{print $1}'` -ge 10 ]]; then
+    echo -n "gcc 10 or later detected. Will compile with the following flags: "
+    COMPILER_FLAGS="-fcommon"
+    echo $COMPILER_FLAGS
+fi
+
 if ! test -e venv; then
   echo "Creating python venv for OLED Screen"
   python3 -m venv venv
@@ -64,7 +72,7 @@ if ! test -e venv; then
   source venv/bin/activate
   echo "Installing requirements.txt"
   pip install wheel
-  pip install -r requirements.txt
+  CFLAGS="$COMPILER_FLAGS" pip install -r requirements.txt
   git rev-parse HEAD > current
 fi
 
@@ -76,7 +84,7 @@ if ! test -e current; then
 else
   if [ "$(cat current)" != "$(git rev-parse HEAD)" ]; then
       echo "New version detected, updating requirements.txt"
-      pip install -r requirements.txt
+      CFLAGS="$COMPILER_FLAGS" pip install -r requirements.txt
       git rev-parse HEAD > current
   fi
 fi