[CMake] How to support separate debug and release build directories?

[David Aldrich]

>
> Do never test CMAKE_BUILD_TYPE in CMakeLists.txt files, it is ignored in
> multiple generators (e.g. Visual Studio).
>

Does that mean I shouldn't have this in CMakeLists.txt? :

# Specify a Release build by default
if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE "Release")
  message(STATUS "Build type not specified: Use Release by default")
endif(NOT CMAKE_BUILD_TYPE)


>
> Just use the appropriate variables that contain suffixes regarding the
> configuration.
>
> e.g
>
> set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR}/debug)
> set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_BINARY_DIR}/release)
>
> See [0] for a list with _<CONFIG> variables.
>
> [0]: https://cmake.org/cmake/help/v3.15/manual/cmake-variables.7.html
>
> HTH
>

Thank you. That is working for me.
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