Hi, all, 
I wrote a file name foo.ml, which included some syntax of camlp4. 
When I use the command:

   ocamlc -pp "camlp4o pa_extend.cmo q_MLast.cmo" -I +camlp4 -c foo.ml

I got the following error message:
   sh: camlp4o: execute permission denied
   Preprocessing error

I run the command under my home directory. I am not the 'root'. Does it
mean that only the user 'root' can execute this command? But, on the other
hand, when I enter the ocaml mode, I can do as follows:

# #load "camlp4.cma";;
# #load "pa_extend.cmo";;
# #load "q_MLast.cmo";;
# #use "foo.ml";;

Can somebody tell me the reason?
Thanks a lot!

Dengping



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