Removed old yasm reference since we removed dependency.

README

@@ -23,7 +23,6 @@ README Sections
   - GTK2 libraries (unless built from source with GUI=NONE - see note)
   - SDL 1.2
   - SDL_ttf
-  - Mesa / OpenGL libraries
   - libpng
   - freetype 2
   - zlib 
@@ -36,11 +35,20 @@ In addition to the binary libraries, the following packages are required if you
   - GNU make
   - Development packages for all the libraries above
   - libsamplerate (aka Secret Rabbit Code)
-  - yasm v0.6.2 or newer 
 
-Most of these pre-requisites are installed by default, but some are more uncommon. Here is an example for adding the 'yasm' and 'SDL_ttf' development packages on Fedora systems:
+Most of these pre-requisites are installed by default, but some are more uncommon. Here is an example for adding the 'SDL_ttf' development packages on Fedora systems:
 
-  # yum install yasm SDL_ttf SDL_ttf-devel
+  # yum install SDL_ttf SDL_ttf-devel
+
+And on Debian systems: 
+
+  # apt-get install libsdl-ttf2.0-0 libsdl-ttf2.0-dev
+
+There are also a number of packages required for specific options: 
+
+  - libsamplerate (aka Secret Rabbit Code for higher quality audio) 
+  - binutils-dev (dis-asm.h for debugger) 
+  - Qt4 libraries and headers (for Qt4 GUI)
 
 2. Building From Source
 -----------------------