Hello, fellow DOSBox Team.
Here's a quick summary of how things are going in the build I am making using Microsoft Visual C++ 2008 Express Edition:

1. Got all of the files copied onto my hard drive
2. Made a patch file called gate.diff for the Frederik Pohl's Gateway MT-32 Missing Music Patch (fix)
3. Tried making the program, dosbox.exe, and ended up getting errors when I included the gate.diff file in the dosbox.cpp file with this line of code:

1#include "gate.diff"

4. Commented out the code, and got a fatal error trying to link the sdlmain.lib file
5. Copied the file to C:\development\dosbox-0.47\visualc_net and got 3 warnings and no errors; successful build

Now my main question is: how do I apply the patch file to the program? This is my first time developing software; I followed the step-by-step basis on:
http://www.dosbox.com/wiki/Building_DOSBox_wi … _C_2008_Express

Main reason I'm making the program is because I have to check to see if using the patch file would make my Frederik Pohl's Gateway Game work with the Roland MT-32 (munt) and post details about it.

Thanks.
-bjwil1991