COMP: fix otb_module_use_recurse

CMake/OTBModuleAPI.cmake

@@ -11,7 +11,7 @@ macro(_otb_module_use_recurse mod)
       _otb_module_use_recurse(${dep})
     endforeach()
     foreach(dep IN LISTS ${mod}_OPTIONAL_DEPENDS)
-      if (${otb-module}_ENABLED)
+      if (${dep}_ENABLED)
         _otb_module_use_recurse(${dep})
       endif()
     endforeach()