build on platforms where ocamlopt not available

[ildar]

there are platforms where native code compilation is not available anymore (ocaml/ocaml#11904).
So it's still possible to have ocaml programs but only in bytecode form.

I just tried and see ocamleditor fails to build on such. ocamlopt is not available, only ocamlc.
I don't ask to fix it (I'm not sure anyone would need that) but just showing the BIG RED SIGN.

[vrotaru]

Have you tried to run on one of this to run

ocaml build.ml

in the root of the ocamleditor project? It will give you a general info and a list of targets and some between them are marked as bytecode.

TARGETS
   1) oebuild                   (Executable, Bytecode/Native)
   2) gmisclib                  (Library, Bytecode/Native)
      Miscellaneous widgets based on LablGtk2.
   3) ocamleditor               (Executable, Native)
   4) ocamleditor-bytecode      (Executable, Bytecode)
   5) ocamleditor-msvc          (Executable, Native)
   6) ocamleditor-native        (Executable, Native)
   7) ocamleditor-lib           (Library, Native)
   8) plugin-remote-bytecode    (Library, Bytecode)
   9) plugin-remote-native      (Plugin, Native)
  10) plugin-dotviewer-bytecode (Library, Bytecode)
  11) plugin-dotviewer-native   (Plugin, Native)
  12) launcher                  (Executable, Native)
      Utility to open OCaml files from the file manager

If those are present than ocaml build.ml ocamleditor-bytecode (in theory) should work. But installation via opam will fail, I guess.

[ildar]

yep, tried that. Fails to find the `ocamlopt`

[vrotaru]

You're right.

The ocamleditor-bytecode target should be updated, A) to only use ocamlc B) To add the (at least) Yojson dependency

It should be doable, but it must be done (it would be easier to) on a platform which support ocamlopt

EDIT: the target is probably OK, my guess it that it has dependency which requires ocamlopt

[ftovagliari]

@ildar: could you add the output of this?
ocaml build.ml -verbose 5 build ocamleditor-bytecode

[ildar]

yes, sorry I'm late. Now: ``` $ ocaml build.ml -verbose 5 build ocamleditor-bytecode 2>&1 | tee /tmp/build.ml.log sh: line 1: ocamlopt: command not found === common === [DEBUG] Task: ocaml tools/comp_process_termination.ml ocamlc terminate_process_unix.c ocamlmklib terminate_process_unix.o process_termination.ml -o process_termination sh: line 1: /usr/bin/ocamlopt: No such file or directory File "build_script_util.ml": Build_script_util.Error ```

[ftovagliari]

Could you please do a test using the latest commit of the issue52 branch (c564f6f)?

[ildar]

log is here. [i586.log.txt](https://github.com/ocamleditor/ocamleditor/files/15253098/i586.log.txt) It's strange it misses Yojson even though it should be ok:

…

$ ocamlfind query yojson /usr/lib/ocaml/yojson

[ftovagliari]

This commit 07f8dc3 should fix it

[ildar]

Yes, it's built, thanks a lot!! Will test it working soon!