7bbe002 has lead to a make install fail with standalone IPP with IW by using IPPROOT cmake definition when the standalone IPP install does not include license and/or support files.

The make succeeds, but make install fails when it attempts to copy license files for IPP with IW:

...
[100%] Built target opencv_version
Install the project...
-- Install configuration: "Release"
CMake Error at cmake_install.cmake:41 (file):
file INSTALL cannot find
"[redacted]/intel/ipp/../iw/../support.txt".

make: *** [install] Error 1

IPP in this case was installed via Intel's installer which did not create such files.
I assume standalone IPP installs are still supported as #9836 fix for it was merged into master some time ago.

Is the standalone IPP install expected to have license and/or support files generated?

EDIT: Standalone install appears to have license files in "intel/compilers_and_libraries_<IPP_version>/licensing/ipp/en" directory. The EULA is inside license.txt, and third-party-programs.txt is there. An equivalent support.txt file is at "intel/compilers_and_libraries_<IPP_version>/licensing/ipp/ippsupport".