[CMake] add_custom_command depends on output from add_custom_target

[SK]

On Tue, Nov 2, 2010 at 12:28 PM, SK <sk at metrokings.com> wrote:
>
> ADD_CUSTOM_TARGET( OUTPUT foo1 foo2
>   COMMAND "make foos"
>   [DEPENDS [ALL]] )
>

I filed a feature request for better external makefile support by way
of output from add_custom_target()
http://cmake.org/Bug/view.php?id=11407