add qmake rpath for linux build

linuxdeploy_helper.sh

@@ -21,7 +21,7 @@ cp -v /usr/lib/x86_64-linux-gnu/libQt5XmlPatterns.so.5 $TARGET/libs
 # Create start script
 cat > $TARGET/start-gui.sh <<EOL
 #!/bin/bash
-export LD_LIBRARY_PATH=\`pwd\`/libs
+# export LD_LIBRARY_PATH=\`pwd\`/libs
 export QT_PLUGIN_PATH=\`pwd\`/plugins
 export QML2_IMPORT_PATH=\`pwd\`/qml
 ./$GUI_EXEC

monero-wallet-gui.pro

@@ -151,6 +151,11 @@ linux {
         message(Building with libunwind)
         LIBS += -Wl,-Bdynamic -lunwind
     }
+    
+
+    QMAKE_LFLAGS_RPATH=
+    QMAKE_LFLAGS += "-Wl,-rpath,\'\$$ORIGIN/libs\'"
+    
 }
 
 macx {