Doxygen supports linking external documentation together: https://www.stack.nl/~dimitri/doxygen/manual/external.html
Using doxygen_add_docs(), it doesn't provide built-in support for tag files. I'm thinking this would be beneficial since the way the function is designed encourages modular documentation. At least, I have my projects structured like this (targets): A A_doxygen B B_doxygen C C_doxygen I have 1 doxygen target per real library target. And each library has dependencies on others. When library C uses something from A, I want C_doxygen to link to the tagfile generated by A_doxygen. At the moment I'm accomplishing this by adding a target property to each real target to keep track of target dependencies. Example: add_library(C ...) target_link_libraries(C A) set_property(TARGET C PROPERTY TARGET_DEPENDENCIES A) When I'm building A_doxygen target (using doxygen_add_docs()), I specify DOXYGEN_GENERATE_TAGFILE. Then in C_doxygen, I specify DOXYGEN_TAGFILES to point to the one output by A_doxygen. I don't like keeping target properties to query the dependency tree, but this is the best I could come up with. Is there value in incorporating this into FindDoxygen.cmake? If so, I'd like to contribute it, if it's useful. Would love feedback and advice on this! -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
