missing lwt constraint in the opam file about ezjsonm HOT 8 CLOSED

what version of lwt do you have installed? this needs quite a recent one.

On 3 Nov 2015, at 17:03, jchanco [email protected] wrote:

Building with Lwt support fails with "Error: Unbound module Lwt.Infix"
To reproduce:

./configure --enable-lwt
make
Output is:

ocaml setup.ml -build
Finished, 1 target (0 cached) in 00:00:00.
File "_tags", line 28, characters 22-34:
Warning: the tag "pkg_alcotest" is not used in any flag or dependency declaration, so it will have no effect; it may be a typo. Otherwise you can use mark_tag_used in your myocamlbuild.ml to disable this warning.
File "_tags", line 37, characters 23-35:
Warning: the tag "pkg_alcotest" is not used in any flag or dependency declaration, so it will have no effect; it may be a typo. Otherwise you can use mark_tag_used in your myocamlbuild.ml to disable this warning.

• /Users/juan.chanco/.opam/4.02.3/bin/ocamlfind ocamlc -c -g -annot -bin-annot -I lib -package hex -package jsonm -package lwt -package sexplib -package uutf -I lib -o lib/ezjsonm_lwt.cmo lib/ezjsonm_lwt.ml
  File "lib/ezjsonm_lwt.ml", line 17, characters 5-14:
  Error: Unbound module Lwt.Infix
  Command exited with code 2.
  Compilation unsuccessful after building 12 targets (0 cached) in 00:00:00.
  E: Failure("Command ''/Users/juan.chanco/.opam/4.02.3/bin/ocamlbuild' lib/ezjsonm.cma lib/ezjsonm.cmxa lib/ezjsonm.a lib/ezjsonm.cmxs lib/ezjsonm-lwt.cma lib/ezjsonm-lwt.cmxa lib/ezjsonm-lwt.a lib/ezjsonm-lwt.cmxs -tag debug' terminated with error code 10")
  make: *** [build] Error 1
  Alternately, installing with opam fails similarly:

opam install lwt ezjsonm
https://cloud.githubusercontent.com/assets/14990174/10915006/76b80142-821a-11e5-9f2d-ac521de27562.png
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from ezjsonm.

2.4.5 from opam.

from ezjsonm.

It seems the Lwt.Infix module doesn't exist yet in that version. Unfortunately, I was unsuccessful pining Lwt in opam (opam pin add lwt --dev-repo)

from ezjsonm.

I successfully pinned lwt to 2.5.0, can't get ezjsonm to install on top of that via opam

from ezjsonm.

Ok, sorry, one last thing. This is on OSX (10.9.5), where the default version of lwt in opam seems to be 2.4.5, Ezjsonm installs just fine with lwt on linux (debian-jessie) where lwt seems to default to 2.5.0

from ezjsonm.

OK, sorry. Pilot error. After re-initing opam, the default version of lwt is 2.5.0 and ezjsonm installs with no problems.

from ezjsonm.

Seems that there is a missing constraint in https://github.com/ocaml/opam-repository/blob/master/packages/ezjsonm/ezjsonm.0.4.2/opam#L26

from ezjsonm.

This was fixed in 14ff73f

from ezjsonm.