Specifies which interpretation of the optimization_level pragma should be used if no prefix is specified.
Disables all predefined macros and assertions.
Undefines any definition currently in effect for the specified macro.
Disables all predefined macros.
Removes standard directories from the include file search path.
Specifies the root directory where the compiler installation was performed.
Specifies the directory for supporting tools.
Passes options to a specified tool.