[CMake] COMPILE_DEFINITIONS_Debug doesn't work in Windows

[Rolf Eike Beer]

> Hi All!
>
> I need to add some preprocessor definitions to my target.
> Here is the code:
>
> if (WIN32)
>      set (COMPILE_DEFINITIONS_Debug
>      _DEBUG
>      USE_MP3READER2
>      _EXPORTS
>      _USRDLL
>      _CRT_SECURE_NO_WARNINGS
>      _USE_32BIT_TIME_T
>      )
>
>      set (COMPILE_DEFINITIONS_Release
>      NDEBUG
>      USE_MP3READER2
>      _EXPORTS
>      _USRDLL
>      _CRT_SECURE_NO_WARNINGS
>      _USE_32BIT_TIME_T
>      )
> else(WIN32)
>
> set (COMPILE_DEFINITIONS_Debug
> _DEBUG
> USE_MP3READER2
> )
>
> set (COMPILE_DEFINITIONS_Release
> NDEBUG
> USE_MP3READER2
> )
> endif(WIN32)
>
>
> But when I open Debug configuration of my VS2008 project I see
>
> WIN32;_WINDOWS;_DEBUG;CMAKE_INTDIR=\"Debug\"
>
> Does someone happen to know how to fix it?

COMPILE_DEFINITIONS is not a variable, it's a global property. As such you
need to call

set_property(GLOBAL PROPERTY COMPILE_DEFINITIONS_DEBUG "...")

Please note that you also need to uppercase the build type.

Eike