cmake: generate opendhtConfig.cmake

CMakeLists.txt

@@ -123,7 +123,7 @@ if (OPENDHT_STATIC)
         target_link_libraries(opendht-static -flto -fuse-linker-plugin)
     endif ()
     target_link_libraries(opendht-static gnutls nettle)
-    install (TARGETS opendht-static DESTINATION ${CMAKE_INSTALL_LIBDIR})
+    install (TARGETS opendht-static DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
 if (OPENDHT_SHARED)
@@ -138,7 +138,7 @@ if (OPENDHT_SHARED)
         target_link_libraries(opendht -flto -fuse-linker-plugin)
     endif ()
     target_link_libraries(opendht gnutls nettle)
-    install (TARGETS opendht DESTINATION ${CMAKE_INSTALL_LIBDIR})
+    install (TARGETS opendht DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
 if (OPENDHT_TOOLS)
@@ -152,3 +152,4 @@ endif ()
 
 install (DIRECTORY include DESTINATION ${CMAKE_INSTALL_PREFIX})
 install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendht.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+install (EXPORT opendht DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/opendht FILE opendhtConfig.cmake)