| targetGroup | The name of the group of devices. | 
| defines | Symbols for this group separated by semicolons. | 
指定したビルドターゲットグループのスクリプトコンパイル用ユーザー指定シンボルを設定します。
The second argument, defines, is a string of preprocessor values.  The values that this string
contains is located in "Scripting Define Symbols".  This can be located in the Configuration
section of the PlayerSettings.
See Also: Platform Dependent Compilation.