How to properly add and distribute zlib to a Qt 5 CMake project?

Question

Qt

The project is cross-platform (Windows, Linux, Mac OS). There is a problem with find at least on Windows - I never managed to get CMake to find zlib and build everything. The option with qmake and using the zlib built into Qt is understandable, but it is not clear how to transfer it to CMake.

Answer 1

So far I have settled on the option - add sources to the project and connect via But so far I have not found a better way to include headers in the main project than adding target_include_directories to the CMakeLists.txt of the child project:

add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
target_include_directories(zlib PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
target_include_directories(zlibstatic PUBLIC ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})

And I still don’t understand how to make normal support for CPack, if collected as a shared library.