[CMake] ADD_DEFINITIONS in RC10

[Brad King]

George Neill wrote:
> Bill,
> 
> Seems like RC10 handles quotes differently regarding ADD_DEFINITIONS,
> 
>   e.g.  in 2.4 patch 6
> 
>    ADD_DEFINITIONS(
>      -DSOME_VALUE=\\"value\\"
>    )
> 
>   in 2.6 RC 10
> 
>   ADD_DEFINITIONS(
>     -DSOME_VALUE="value"
>   )
> 
> Is this expected?

Yes, according to new CMake Policy CMP0005:

   http://www.cmake.org/HTML/cmake-2.6.html#command_CMP0005

You should only see the new behavior if you call

   cmake_minimum_required(VERSION 2.6) # note value is 2.6 and not 2.4

or explicitly set this policy to NEW behavior.  Otherwise CMake preserves 
the old behavior and warns.  If you require 2.6 there is also this new feature:

   http://www.cmake.org/Wiki/CMake_2.6_Notes#Preprocessor_Definitions

-Brad