build(linux): use linuxdeploy qt plugin

build-appimage.sh

@@ -8,6 +8,10 @@ LINUXDEPLOY_PATH="https://github.com/linuxdeploy/linuxdeploy/releases/download/c
 LINUXDEPLOY_FILE="linuxdeploy-x86_64.AppImage"
 LINUXDEPLOY_URL="${LINUXDEPLOY_PATH}/${LINUXDEPLOY_FILE}"
 
+LINUXDEPLOY_QT_PLUGIN_PATH="https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/1-alpha-20240109-1"
+LINUXDEPLOY_QT_PLUGIN_FILE="linuxdeploy-plugin-qt-x86_64.AppImage"
+LINUXDEPLOY_QT_PLUGIN_URL="${LINUXDEPLOY_QT_PLUGIN_PATH}/${LINUXDEPLOY_QT_PLUGIN_FILE}"
+
 UPDATEPLUG_PATH="https://github.com/linuxdeploy/linuxdeploy-plugin-appimage/releases/download/continuous"
 UPDATEPLUG_FILE="linuxdeploy-plugin-appimage-x86_64.AppImage"
 UPDATEPLUG_URL="${UPDATEPLUG_PATH}/${UPDATEPLUG_FILE}"
@@ -27,6 +31,9 @@ export NO_STRIP=on
 if [ ! -e ./Tools/linuxdeploy ]; then
 	wget ${LINUXDEPLOY_URL} -O ./Tools/linuxdeploy
 fi
+if [ ! -e "./Tools/${LINUXDEPLOY_QT_PLUGIN_FILE}" ]; then
+	wget ${LINUXDEPLOY_QT_PLUGIN_URL} -O "./Tools/${LINUXDEPLOY_QT_PLUGIN_FILE}"
+fi
 if [ ! -e ./Tools/linuxdeploy-update-plugin ]; then
 	wget ${UPDATEPLUG_URL} -O ./Tools/linuxdeploy-update-plugin
 fi
@@ -37,6 +44,7 @@ fi
 chmod +x ./Tools/linuxdeploy
 chmod +x ./Tools/linuxdeploy-update-plugin
 chmod +x ./Tools/appimageupdatetool
+chmod +x "./Tools/${LINUXDEPLOY_QT_PLUGIN_FILE}"
 
 # Delete the AppDir folder to prevent build issues
 rm -rf ./AppDir/
@@ -45,13 +53,18 @@ rm -rf ./AppDir/
 mkdir -p ${APPDIR_HOOKS}
 cp Data/linux-env.sh ${APPDIR_HOOKS}
 
+# Ensure qt6 is properly set
+qtchooser -install qt6 $(which qmake6)
+export QT_SELECT=qt6
+
 # Build the AppDir directory for this image
 mkdir -p AppDir
 ./Tools/linuxdeploy \
 	--appdir=./AppDir \
 	-e ./build/Binaries/dolphin-emu \
 	-d ./Data/slippi-dolphin.desktop \
-	-i ./Data/dolphin-emu.png
+	-i ./Data/dolphin-emu.png \
+	--plugin qt
 
 # Add the Sys dir to the AppDir for packaging
 cp -r Data/Sys ${APPDIR_BIN}