[CMake] Redirect output from add_custom_target()

[Robert Dailey]

I guess there's no way to make this work without adding a new option
to add_custom_target()?

On Thu, Apr 4, 2013 at 7:26 AM, Rolf Eike Beer <eike at sf-mail.de> wrote:
> Micha Renner wrote:
>>
>> I would try
>>
>>         add_custom_target( ${doc_target_name}
>>              DEPENDS ${generated_conf}
>>              COMMAND ${doxygen_exe} ${generated_conf} 2 > filename
>>              WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
>>              COMMENT "Generating documentation using Doxygen"
>>          )
>
>
> This will just fail as > has no meaning to doxygen. The only reason this
> works for you when you try that command in a terminal is that your
> Bourne-like shell will interpret the "> filename" and not pass it to doxygen
> at all. When you call doxygen like this from any generated project file
> there will be no shell involved.
>
> Eike
>
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