CMake find_package failed to import opentelemetry-cpp

[ThomsonTan]

We added packaged installation in PR #432, which could install opentelemetry-cpp correctly to the designated target. But I got below message while import the installed package from a standalone project.

Seems we missed to pass include dir as PATH_VAR for configure_package_config_file.

lib/cmake/opentelemetry-cpp-config.cmake:64 (message):
File or directory referenced by variable OPENTELEMETRY_CPP_INCLUDE_DIRS
does not exist !

[andriy-fd]

Is there any chance that this happened again?
We see the same error on gihub after recent changes for runners: actions/runner-images@a0af039

error:

Make Error at build/vcpkg_installed/x64-windows-static-md/share/opentelemetry-cpp/opentelemetry-cpp-config.cmake:75 (message):
  File or directory
  C:/a/endpoint-otel/endpoint-otel/build/vcpkg_installed/include
  referenced by variable OPENTELEMETRY_CPP_INCLUDE_DIRS does not exist !
Call Stack (most recent call first):
  build/vcpkg_installed/x64-windows-static-md/share/opentelemetry-cpp/opentelemetry-cpp-config.cmake:85 (set_and_check)
  C:/vcpkg/scripts/buildsystems/vcpkg.cmake:859 (_find_package)
  src/telemetry/tracing/base/CMakeLists.txt:5 (find_package)