--- /dev/null
+# add a target to generate API documentation with Doxygen
+find_package(Doxygen)
+if(DOXYGEN_FOUND)
+ configure_file("Doxyfile.in" "Doxyfile" @ONLY IMMEDIATE)
+
+ add_custom_target(doc
+ ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+ WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+ COMMENT "Generating API documentation with Doxygen" VERBATIM
+ )
+endif(DOXYGEN_FOUND)