Make file issues

[mrdude2478]

I had to add some stuff to your makefile for this to compile on windows:

-lopusfile, -lopus, -lwebp

So the libs part of the makefile should look like this:

LIBS := -lpu -lfreetype -lSDL2_ttf -lSDL2_gfx -lSDL2_image -lSDL2_mixer -lmodplug -lmpg123 -lopusfile -lopus -lwebp -lvorbisidec -logg -lSDL2 -lEGL -lGLESv2 -lglapi -ldrm_nouveau -lpng -ljpeg sdl2-config --libs freetype-config --libs -lnx

Then it compiles without errors.