[CMake] Wanted : Macro to copy files if touched

[John Biddiscombe]

> MACRO(COPY_IF_DIFFERENT source dest
>   EXEC_PROGRAM(
>     ${CMAKE_COMMAND}
>     ARGS -E copy_if_different ${source} ${dest})
> ENDMACRO(MACRO(COPY_IF_DIFFERENT)
>
> use COPY_IF_DIFFERENT with FOREACH
>   

Excellent, this is exactly what I wanted
> The files are copied when CMakeLists.txt is processed. If you need the
> files to be copied when a specific target is built use a custom rule
>   
No. I didn't want to create custom rules. The one above is just what I 
was looking for. Concise and simple. thanks very much

JB


> ADD_CUSTOM_COMMAND(
>   TARGET     ${target}
>   POST_BUILD
>   COMMAND    ${CMAKE_COMMAND}
>   ARGS       -E copy_if_different ${source} ${dest}
>   )
>
> PRE_BUILD - run before all other dependencies
> PRE_LINK - run after other dependencies
> POST_BUILD - run after the target has been built
>
> - --
> Filipe Sousa
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-- 
John Biddiscombe,                            email:biddisco @ cscs.ch
http://www.cscs.ch/about/BJohn.php
CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82