Optimize the LD_LIBRARY_PATH environment variable that cannot be obta…

…ined when using the sudo command to run the script.

gui.sh

@@ -1,5 +1,12 @@
 #!/usr/bin/env bash
 
+# If it is run with the sudo command, get the complete LD_LIBRARY_PATH environment variable of the system and assign it to the current environment,
+# because it will be used later.
+if [ -n "$SUDO_USER" ] || [ -n "$SUDO_COMMAND" ] ; then
+    echo "The sudo command resets the non-essential environment variables, we keep the LD_LIBRARY_PATH variable."
+    export LD_LIBRARY_PATH=$(sudo -i printenv LD_LIBRARY_PATH)
+fi
+
 # This gets the directory the script is run from so pathing can work relative to the script where needed.
 SCRIPT_DIR=$(cd -- "$(dirname -- "$0")" && pwd)