The compile completed to the end without issue.
As suggested by R. Belmont, opening the file src/osd/sdl/sdl.mak in a text editor and finding this line:
# SDL_LIBVER = sdl2
Removing the # so it simply reads
SDL_LIBVER = sdl2
and then saving did the trick.
Summary:
Installed SDL2 and commented out the line as per above..
Did "make clean" followed by "make". This is what did the trick. Just in case, I also entered "./endings" before the make commands. Everything else on
http://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=58897&page=1 remains the same with this one exception. So be sure to follow the URL in the previous sentence and after you complete
all of STEP 2 simply follow the above comment removal steps and you should be good to go.
** It's noteworthy to understand that as of this writing the github repo include the comment fix so in no time this post will become redundant.
A huge and special thank you to R. Belmont for assisting me throughout the process.