[Rpcemu] Revised Mac patch for 0.9.2 (version 4)

Hello all

Please find attached the latest Mac patch for 0.9.2. This incorporates the following fixes:

* Loading of the 'netroms/EtherRPCEm,ffa' file (kindly contributed by David Pitt).
* Compatibility of the "recompiler" version with OS X High Sierra. I have tested with the latest version of High Sierra, 10.13.6.

You should unpack the ZIP file in the "rpcemu-0.9.2/src" folder and apply the patch from there, i.e.:

patch -p0 -i ./rpcemu-0.9.2-mac-patch-v4.diff

The patch should successfully apply without error. Next, change into the "qt5" folder, and type the following:

qmake
make -j4

(Increase the 4 to however many cores you've got.)

This should produce an "rpcemu-interpreter.app" application in the top-level "rpcemu-0.9.2" folder. Double-click to run in the normal way.

As ever, comments and bug reports are welcome.

Tim