Eudora/compiling

As of 2021-09-10, obstacles to compiling the Eudora source to work under Linux include:

1. It depends on MFC, which is proprietary and expensive (can be illegally obtained, but for dev/test purposes only)

1a. MFC needs to be recompiled for Linux, which requires finding some way to emulate Microsoft-specific language extensions ( __try and __except).

2. It depends on the Stingray Objective Toolkit, which is so expensive they don't even quote a price on the web site, and which is obscure enough that it has so far proven impossible to pirate. (What is needed are the headers and the DLL; the headers are included as part of the Eudora source, and the DLL is probably available as part of the Eudora end-user install, but we haven't been able to find it yet.)