+LUA_SRC= simix/smx_context_lua.c bindings/lua/simgrid_lua.c #bindings/lua/Msglua.c
+if HAVE_LUA
+ simgrid_sources += $(LUA_SRC)
+else
+ EXTRA_DIST += $(LUA_SRC)
+endif
+
+RUBY_SRC= simix/smx_context_ruby.c \
+ bindings/ruby/rb_msg_process.c \
+ bindings/ruby/rb_msg_host.c \
+ bindings/ruby/rb_msg_task.c \
+ bindings/ruby/rb_application_handler.c
+if HAVE_RUBY
+ simgrid_sources += $(RUBY_SRC)
+else
+ EXTRA_DIST += $(RUBY_SRC)
+endif