cmake: How to use check_something() macros with non-standard locations, Was: Re: invitation: try compiling kdelibs using cmake

[Brad King]

Tanner Lovelace wrote:
> How would you specify this when using them as environment variables?
> Like this?
> 
> CMAKE_INCLUDE_PATH=/some/dir:/another/include/dir

Paths in environment variables use the separator convention of the 
native platform.

Windows:

set CMAKE_INCLUDE_PATH c:/some/dir;c:/other/dir

Posix:

CMAKE_INCLUDE_PATH=/some/dir:/other/dir

For MinGW, CMake is a windows executable so it uses the windows-style 
path with semicolons even though the MSYS environment's PATH variable 
uses colons.

-Brad