add Botan2 library to a Qt6 project

botan2_qt6_project.txt

# Include FindBotan2.cmake in ${PROJECT_ROOT}/cmake
# https://github.com/rnpgp/rnp/blob/master/cmake/Modules/FindBotan2.cmake


# Then add this
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")


find_package(Botan2 REQUIRED)

if(BOTAN2_VERSION VERSION_LESS "2.19.1")
    message(FATAL_ERROR "Botan2 2.19.1 or higher is required")
endif()
include_directories(SYSTEM ${BOTAN2_INCLUDE_DIR})



# Beneath the other target_link_libraries(...) lines

target_link_libraries(MyProjectName PRIVATE ${BOTAN2_LIBRARIES} )