Document prerequisites for the GUI

Author: dl8dtl

README.md

@@ -68,5 +68,6 @@ For more information, refer to the [AVRDUDE documentation](https://avrdudes.gith
 Starting with version 8, a GUI implementation has been added, to demonstrate the functionality of `libavrdude` is suitable to implement a native GUI (as opposed to CLI wrapper).
 
 The GUI is based on the Qt toolkit and its Python bindings, called _PySide_.
+Either Qt5 with PySide2, or Qt6 with PySide6 are supported.
 
 A script named `avrdude-gui` is installed into the same location as the AVRDUDE CLI program. It can be used to start the GUI. There is a builtin help describing the usage.

src/python/adgui.bat.in

@@ -1 +1,6 @@
+rem Wrapper around the AVRDUDE Qt / PySide GUI
+rem
+rem Prerequisites:
+rem * python3
+rem * Qt5 / PySide2, or Qt6 / PySide6
 "@Python3_EXECUTABLE@" "@CMAKE_INSTALL_PREFIX@\@CMAKE_INSTALL_DATADIR@\avrdude\adgui.py"

src/python/adgui.sh.in

@@ -1,4 +1,10 @@
 #!/bin/sh
+#
+# Wrapper around the AVRDUDE Qt / PySide GUI
+#
+# Prerequisites:
+# * python3
+# * Qt5 / PySide2, or Qt6 / PySide6
 
 if [ ! -d "@CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_DATADIR@/avrdude" ] ; then
     echo "Installation directory @CMAKE_INSTALL_PREFIX@/@CMAKE_INSTALL_DATADIR@/avrdude missing" >&2