e67704c40f
In some repos we need to be able to pass extra cache variables to find 3rd party packages when building examples as external projects. Introduce QT_EXAMPLE_CMAKE_VARS_TO_PASS to allow passing vars like OpenSSL_ROOT or Protobuf_ROOT if they are set in the repo project. It should be noted that QT_EXAMPLE_CMAKE_VARS_TO_PASS expects a special syntax for its values, of the from VAR_NAME:CMAKE_TYPE, due to the pre-existing implementation on how we pass variables to ExternalProject. Task-number: QTBUG-90820 Task-number: QTBUG-96232 Change-Id: Ie3e74d4fde106f947d12e51d27e41a310157aab6 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> (cherry picked from commit 43d0c5ed6ef666b4ef9f33c018240f551fb6ebae) Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>