[CMake] Rebuild custom command when source file changes

[Mike]

I should add:

CMake 2.8.7
Windows 7 64-bit
Visual Studio 2010 Win64 Generator

As per suggestion, I'm working on an isolated test case at the moment as
the system it's part of is pretty complex so maybe there's something
further down the line that's tripping it up. I'll post about the results
once I've worked it out.

Mike

On 6 April 2012 10:00, Mike <too.cheesy at gmail.com> wrote:

> Hello,
>
> I have a custom build command which executes an internal resource compiler
> and I am having trouble getting it to rebuild whenever one of the files
> being packaged is changed. In time I will alter it to scan the input file
> for dependencies and build a list automatically, but for now I am manually
> specifying the files which are duplicated in the resource file. It's
> similar to Qt .qrc system and I based much of this on the Qt macros, yet it
> doesn't work for me.
>
> I want it to re-execute the custom command any time any of the files in
> ${rsm_input_files} changes.
>
> # files also specified in resources.rsm
> set(rsm_input_files
>    textures/default_blank.png
>    scripts/process_images.py
>    scripts/misc.py
> )
>
> # Make all deps into absolute paths
> set(rsm_files_as_deps "")
> foreach (_rsm_file ${rsm_input_files})
>    list(APPEND rsm_files_as_deps
> "${CMAKE_CURRENT_SOURCE_DIR}/${_rsm_file}")
> endforeach (_rsm_file)
>
> set(rsm_infile "resources.rsm")
> set(rsm_outfile "${CMAKE_CURRENT_BINARY_DIR}/resources/resources.rsmc")
> add_custom_command(
>    OUTPUT ${rsm_outfile}
>    DEPENDS ${rsm_infile} ${rsm_files_as_deps}
>    COMMANDS ${TOOLS_PATH}/bin/rsmc.exe
>    ARGS -i ${rsm_infile} -o ${rsm_outfile} -v 0
>    VERBATIM
> )
>
> This works when ${rsm_infile} changes, but not when the files in
> ${rsm_input_files} (or, rather, ${rsm_files_as_deps}) change.
>
> What am I missing?
>
> Thanks,
>  Mike
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