public static void Main (string[] args)
{
var dir = args [0];
var lines = File.ReadAllLines (Path.Combine (dir, "..", "..", "..", "..", "version.config"));
var txt = File.ReadAllText (Path.Combine (dir, "BuildVariables.cs.in"));
txt = txt.Replace ("@PACKAGE_VERSION@", GetValue (lines, "Version"));
txt = txt.Replace ("@PACKAGE_VERSION_LABEL@", GetValue (lines, "Label"));
txt = txt.Replace ("@COMPAT_ADDIN_VERSION@", GetValue (lines, "CompatVersion"));
File.WriteAllText (Path.Combine (dir, "BuildVariables.cs"), txt);
}