Installed module library can't find imported headers [Ubuntu 22.04 LTS, CMake 3.28.1, Ninja 1.11.1 and Clang 17.0.6]

[ClausKlein]

@ben.boeckel

Thanks for the test cases. I tested it with 3.29.0-rc2 and things worked (after making changes to install to $PWD/install and use m gcc build instead).

The error occurs, if GTest is installed to /opt or /usr/local which are not in default include path!