On 1. Mar, 2010, at 9:25 , Surya Kiran Gullapalli wrote:
>>
>> add_custom_target(TroFilesTarget DEPENDS ${trofiles})
>> add_dependencies(LibraryTarget TroFilesTarget)
>>
>>
> Thanks,
> that worked. the problem now is this.
>
> The individual .tro files which are created are dependent on the file from
> which it is created. say source_cxx_tro is dependent on source.cxx. Ideally
> source_cxx_tro should be generated only when source.cxx is changed (or
> touched).
>
> But the source_cxx_tro is generated when ever I run the build. Can we avoid
> this ?
>
> Thanks,
> Surya
you have to tell add_custom_command on what the output depends:
add_custom_command (OUTPUT ${trofile}
COMMAND perl trans.pl ${file} -o ${file_tro}
DEPENDS ${file}
)
Also, you might consider to add trans.pl to the dependency list, since if that
one changes, the files should also be regenerated. Further, relying on perl to
be present and being named like this isn't a good idea, you should use
find_package(Perl REQUIRED) instead, and then use ${PERL_EXECUTABLE} in place
of just the plain "perl" command.
HTH
Michael
PS: Please always include the cmake-list in your answer so that others can
profit from the discussion...
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Follow this link to subscribe/unsubscribe:
http://www.cmake.org/mailman/listinfo/cmake
