[CMake] [BUG] add_custom_command(TARGET ...) can't see in scope target

[Iosif Neitzke]

And:

"A target created in the same directory (CMakeLists.txt file) that
specifies any output of the custom command as a source file is given a
rule to generate the file using the command at build time."

http://www.cmake.org/cmake/help/v3.3/command/add_custom_command.html

But it's not super clear in the documentation.

On Tue, Aug 4, 2015 at 4:24 PM, Nils Gladitz <nilsgladitz at gmail.com> wrote:
> On 04.08.2015 23:15, Dan Liew wrote:
>>>
>>> foolib is defined in this CMakeLists.txt:
>>>
>>> https://github.com/delcypher/cmake_add_custom_command_bug/blob/master/lib/CMakeLists.txt
>>>
>>> That is the (only) context in which you can extend the definition of the
>>> target with custom commands.
>>
>> Since when?
>
>
> As far as I know it has always been this way.
>
>>   I haven't seen that documented anywhere. IMHO this
>> behavior is counter-intuitive, in general I expect the scope of a
>> target to not depend on the cmake command I am trying to use.
>
>
> I think it is sensible that the definition of a target is scoped to one
> single directory.
> Where the definition of a target consists of e.g. sources, properties,
> dependencies and custom commands related to the target.
>
> You can reference/query global targets in other directories but you can not
> change them.
>
> Nils
>
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