[CMake] How to duplicate a source file and rename it

[J Decker]

On Fri, Sep 21, 2018 at 3:00 PM Ke Gao <ke.gao.ut at gmail.com> wrote:

> Hi,
>
> In a project, I need to first duplicate a source file and rename it. For
> example, I want to change "file.c" to "aaa_file.c", and after compiling, I
> will delete it. This is similar to using "cp file.c aaa_file.c". How to
> easily do this in CMake? I found "file" command doesn't work well for this.
>
>
add_custom_command( OUTPUT aaa_file.c
                           DEPENDS file.c
                           COMMAND ${CMAKE_COMMAND} -E copy_if_different
file.c aaa_file.c
    )

then you just have to reference the source file 'aaa_file.c' and it will
get updated if file.c is different. I also do
                             COMMAND ${CMAKE_COMMAND} -E touch aaa_file.c

just to make sure it is new.



> Thank you very much.
>
> --
>
> ..............................................................................................................................................
> Ke Gao
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