Version 4.0.0 installs the empty directories include/chrono_thirdparty/googlebenchmark and include/chrono_thirdparty/googletest

[yurivict]

[rserban]

This is an issue with CMake's install: when used to install a directory structure with files following a certain pattern (in this case headers, i.e., *.h, *.cuh, and *.hpp) it will duplicate the entire directory hierarchy, including creating empty sub-directories (if none of their files match the pattern).

• If you have updated the Google benchmark and test submodules, when installing you will get their respective headers in the right sub-directories (but you also get several empty sub-directories).
• If you did not update submodules, you will not have the Google benchmark and test code in your source tree to begin with (just two empty directories under src/chrono_thirdparty). You will be able to configure and build Chrono (albeit the unit tests and benchmark tests will be disabled), but on install CMake will generate those two empty directories.

I don't know of a workaround for this CMake issue without ugly hacks.