Conclusion

• Too many menu managers do not support user defined menu entries out of the box.

• afterstep, kwin and flwm do not handle correctly '/' character in menu titles. Unfortunately they cannot be fixed until menu bug #64822 and bug #136947 are fixed. In the meantime, you can use something like

  genmenu=ifeqelse(parent($title),"",parent($section),parent(parent($section))) "/" \ 
  replacewith($title,"/","_") ifelse($command, "", "/")
  

  that works correctly when title contains at most on '/'. Thanks to Malcolm Parsons for this tip.

• Menu managers using m4 to include menu files must use undivert and not include because the menu file must not be preprocessed, since menu title and command may contain words recognized as m4 macro and be wrongly expended. Thanks to Mark Eichin for the tip.

• The Test backquote test is probably too harsh. Several menu managers fail because they try to execute /bin/sh -c"exec eval `echo /usr/local/bin/test`" which fail with

  sh: exec: eval: not found
  

  because eval is a builtin. However some of them do not evaluated command in a shell, which is wrong.

• I have not been able to test xfwm because Debian menu entries are scrambled among others.