Distribute ocaml binary and cma files

Learning
22

I had some spare time and gave it a try,

It seemed to work as expected (with and without -nopervasives).

Cheers,
Nicolas

2 Likes
23

The key part of my problem is that I am compiling with docker.

$ git diff
diff --git a/Makefile b/Makefile
index a7c87fc..40a30f8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 top: data.ml top.ml
-       ocamlmktop -o $@ $^
+       ocamlmktop -custom -o $@ $^
 
 data.ml: make_data.ml
        ocaml -I +compiler-libs ocamlcommon.cma $^ > $@

$ docker run --rm -v /tmp/selfcontained-ocaml-toplevel:/tmp/selfcontained-ocaml-toplevel gwrepl /bin/bash -c 'eval $(opam env) && cd /tmp/selfcontained-ocaml-toplevel && make clean top'
rm -f top *.cm*
ocamlmktop -custom -o top data.ml top.ml

$ ./top 
        OCaml version 4.09.1

File "command line", line 1:
Error: Unbound module Stdlib

Your example might work (I mean fail) with any docker image, I guess.

PS: I’ll copy the way you write your get function, thanks :slight_smile:
PPS: without the -custom, I have an error about ocamlrun being wrong version, I do not remember. Note that my docker and my computer have different OCaml version, but at the end, I want to distribute the tool to computers (possibly) without ocaml at all.

24

I might have a clue: with @nojb’s repo, the resulting toplevel works if it’s compiled with a recent compiler, but doesn’t work if I compile it with 4.09.0.

Can you adapt your docker image so that it uses a more recent version of OCaml ?

2 Likes
25

It works with a recent OCaml indeed!

$ docker run --rm -v /tmp/selfcontained-ocaml-toplevel:/tmp/selfcontained-ocaml-toplevel geneweb-20.04-4.11.2 /bin/bash -c 'eval $(opam env) && cd /tmp/selfcontained-ocaml-toplevel && make clean top'
rm -f top *.cm*
ocamlmktop -custom -o top data.ml top.ml
jsagot@jsagot-XPS:/tmp/selfcontained-ocaml-toplevel$ ./top 
        OCaml version 4.11.2

+ loading Stdlib from marshalled copy
Cannot find file topfind.
#
1 Like