[CMake] add_custom_command scope

[Hendrik Sattler]

Am 19. Januar 2016 12:30:39 MEZ, schrieb Lars <laasunde at hotmail.com>:
> Hello,
> 
>Using CMake 3.3 and VS2012.
> 
>The below cmake scripts generate "Policy CMP0040 is not set: The target
>in the TARGET signature of add_custom_command must exists". Why cannot
>the custom/CMakeLists.txt file see the target created in
>app/CMakeLists.txt ? Moving the ADD_CUSTOM_COMMAND to the
>app/CMakeLists.txt fixes the problem but I would like to keep them
>separate if possible.
> 
>PROJECT(TEST)
>ADD_DIRECTORY(app)
>ADD_DIRECTORY(custom)
> 
>The app CMakeLists.txt looks like this;
>ADD_EXECUTABLE(app main.cpp)
>TARGET_LINK_LIBRARIES(app)
> 
>The custom CMakeLists.txt looks like this;
>ADD_CUSTOM_COMMAND(
>  TARGET app 
>  POST_BUILD
>  COMMAND tbd.exe)
> 
>Appreciate any input.

Make that its own custom target and let it depend on app target.

>Kind regards, Lars
> 		 	   		  
>
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