[CMake] [CMAKE] Handling External Libraries and Resources

[Clinton Stimpson]

> 
> Essentially, I'd like to hear your views on handling resource copying. Is
> there an obvious method I've overlooked? What are other projects doing to
> handle resources? Any ideas with respect to other methods of handling resources?


You could do your resources like this:

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

set(inres ${CMAKE_CURRENT_SOURCE_DIR}/myres.txt)
set(outres ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}/myres.txt)
add_custom_command(OUTPUT "${outres}"
  COMMAND "${CMAKE_COMMAND}" -E copy "${inres}" "${outres}")

add_library(foo foo.cpp ${outres})

The custom command will be part of building the library, and will run anytime myres.txt is out-of-date.
You could make a macro or function if you need to repeat that code often.

Also, installers can easily be made with things scattered around a build tree.  The cmake install() commands  help you put it where you want in the installer.  So, I suggest saving your install() commands for making installers, not for handling external libraries.

Clint
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