My CMake project contains some header-only libraries, e.g.:

add_library(foo INTERFACE)
target_sources(foo INTERFACE foo.h)

Qt Creator unfortunately sees that target, but doesn't display the sources (in this case, foo.h) in the project browser. It would be nice if it would

Attached a simple test project, just open it in Qt Creator - foo.h is not in the project browser, although it's in the target_sources for the 'foo' header only library