How to have CMake show headers-that are not part of any binary target-in the IDE?

Question

In our workflow, we can have a module A that is composed of several header files, module A not producing any binary (side note: it will obviously be used b

Answer 1

You can use the new target_sources command in CMake 3.1.

add_library(moduleA INTERFACE)
target_include_directories(moduleA INTERFACE ...)
target_sources(moduleA INTERFACE 
  ${CMAKE_CURRENT_SOURCE_DIR}/utility.h
  ${CMAKE_CURRENT_SOURCE_DIR}/moreUtilities.h
)

It is also transitive.

http://www.cmake.org/cmake/help/v3.1/command/target_sources.html#command:target_sources

The limitation of not being able to export targets which have INTERFACE_SOURCES has been lifted for CMake 3.3.