[CMake] reusable cmakecache.txt

[Bill Hoffman]

Alexander Ivash wrote:
> Hello, cmake.
>
> I have 2 compilers: gnu and diab. Cmake can't find them so I have to
> run cmakesetup and enter path for them every time I need to prepare
> new project for compilation. Is it possible to keep gnu related path
> in gnu.cmake and diab related in diab.cmake and later do something like
> this:
>
> cmake -G "Unix Makefiles" -gnu.cmake ?
>
> I thought -C option exists for this purposes, but it seems that -C
> just set path to CMakeLists.txt. It will be very cool if the written
> above is possible.
>
>   
CXX and CC environment variables can be set prior to running cmake if it 
can not find your compiler.

-Bill