[CMake] Possible bug in environment variable expansion?

[David Cole]

There are no "types" for environment variables.

There are types for values stored in the registry.

See this article: http://support.microsoft.com/kb/256986 and note the 
descriptions of REG_SZ and REG_EXPAND_SZ.

The fact that you can do it in RapidEE does not mean it's a built-in 
feature of Windows environment variables. It means they have a nice 
feature built on top of Windows environment variables, ... but you 
can't count on that feature for use from *any* program that deals with 
environment variables. You can only count on it when you are setting an 
environment variable via RapidEE's user interface.


David C.