fresh linux build: no 'bin' subdirectory, generated lib and bin are in main build dir.
Using archlinux up to date (cmake 3.13.4, gcc 8.2.1, ninja 1.9.0).
I didn't see specific warning or error message, generated binaries seem to be OK but all .so and bin files are in the root build directory, the 'bin' dir was not generated.
Problem appears without specific cmake conf:
$ cd build $ cmake -GNinja ../ParaView-Sources $ ninja