NVIDIA's header `#include <nvtx3/nvToolsExt.h>`, part of its "NVIDIA Toolkit Extensions" library, requires linking against `libdl` on Linux (not sure what it does on Windows). However, the `CUDA::nvToolsExt` target created by FindCUDAToolkit does not hang that dependency onto the target it creates, so that merely `target_link_library(CUDA::nvToolsExt)` fails to add that link library. The result is a build error: ``` /usr/bin/ld: main.cpp.o: undefined reference to symbol 'dlclose@@GLIBC_2.2.5' /usr/bin/ld: /lib/x86_64-linux-gnu/libdl.so.2: error adding symbols: DSO missing from command line ``` Please add the missing dependency.