add linux packaging script(s) from 2.0-ongoing

git-svn-id: svn://localhost/ardour2/branches/3.0@8625 d708f5d6-7413-0410-9779-e7cbd77b26cf

tools/linux_packaging/install.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+# Make sure we have a terminal for the user to see and then run
+# the real install script.
+
+if [ -z $WINDOWID ]; then
+	if which xterm > /dev/null; then
+		exec xterm -e ./stage2.run
+	elif which gnome-terminal > /dev/null; then
+		exec gnome-terminal -e ./stage2.run
+	elif which konsole > /dev/null; then
+		exec konsole -e ./stage2.run
+	fi
+else
+	./stage2.run
+fi