Using LibTorch with JUCE

[arhythmetic]

Has anyone managed to make this work? Using the JUCE CMake example on Windows 10 / VS2019, I tried the following with no luck.

In CMakeLists.txt

• added

list(APPEND CMAKE_PREFIX_PATH "<my_path_to>/libtorch-win-shared-with-deps-debug-1.12.0+cpu/libtorch")

find_package(Torch REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TORCH_CXX_FLAGS}")

• modified target_link_libraries():

target_link_libraries(AudioPluginExample
    PRIVATE
        # AudioPluginData           # If we'd created a binary data target, we'd link to it here
        juce::juce_audio_utils
        "${TORCH_LIBRARIES}"
    PUBLIC
        juce::juce_recommended_config_flags
        juce::juce_recommended_lto_flags
        juce::juce_recommended_warning_flags
)

• added at the end:

if (MSVC)
  file(GLOB TORCH_DLLS "${TORCH_INSTALL_PREFIX}/lib/*.dll")
  add_custom_command(TARGET AudioPluginExample
                     POST_BUILD
                     COMMAND ${CMAKE_COMMAND} -E copy_if_different
                     ${TORCH_DLLS}
                     $<TARGET_FILE_DIR:AudioPluginExample>)
endif (MSVC)

It compiles fine, but upon trying to open the standalone, I get the usual “torch_cpu.dll not found”. If I move all the libtorch .dll files in the same directory as the executable, it opens just fine. But the VST3 obviously won’t open.

Any help much appreciated.