New build/packager script

[Lawrence Rust <lvr@…>]

The attached script will build MythTV and all dependent libraries in one of 3 ways:

• Cross compile from Linux to Windows
  
• Compile on Windows using the MSys environment
  
• Compile on Linux

The Windows builds produce a runtime installation and a self extracting installer that will run on Windows 2k and later.

The script will also produce debug or release builds and can simply switch between Myth branch tags.

It is my hope that the devs at MythTV will incorporate this script into standard builds so that:

• Windows builds are less frequently broken
  
• Windows versions are more frequently tested, especially now that it runs with wine.
  
• All testing is done with debug builds of all dependent libraries, especially Qt and mysql where extensive runtime assertion tests are included.

[beirdo]

Once the scripts no longer need custom patching, we will likely see this checked into the packaging repository, at least for Windows building.

[beirdo]

This seems to be a dupe of #9374. I will make a back link to this ticket there.