More cleanups.

Split Compaq Deskpro off to separae file. Renamed PIIX files to intel_ prefix.
Re-enabled Compaq machines; the Portable II works fine now.

src/video/vid_voodoo.c

@@ -2681,7 +2681,9 @@ static void voodoo_half_triangle(voodoo_t *voodoo, voodoo_params_t *params, vood
         int dither = params->fbzMode & FBZ_DITHER;*/
         int texels;
         int c;
+#ifndef NO_CODEGEN
         uint8_t (*voodoo_draw)(voodoo_state_t *state, voodoo_params_t *params, int x, int real_y);
+#endif
         int y_diff = SLI_ENABLED ? 2 : 1;
 
         if ((params->textureMode[0] & TEXTUREMODE_MASK) == TEXTUREMODE_PASSTHROUGH ||