Proper handling of ocaml_captures_build_path

[Chris Lamb]

Hi Stéphane,

> > Unfortunately, at quick glance I can't seem to be able to reproduce
> > this. Take, for example, the 2020-01-29 14:02:00 build of belenios in
> > unstable/amd64:
> > 
> >   https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/belenios.html
> > 
> > I you review the .buildinfo file we can see that it was built with the
> > aforementioned new version of dh-ocaml, ie.:
> > 
> >   dh-ocaml (= 1.1.1),
> > 
> > … but we still see build-path related changes between the two builds:
> > 
> >     camlTool_cmdline__stream_to_list_317():
> >    -/build/1st/belenios-1.10+dfsg/_build/src/tool/tool_cmdline.ml:28 
> >    +/build/2/belenios-1.10+dfsg/2nd/_build/src/tool/tool_cmdline.ml:28
> 
> That's because belenios doesn't include the snippet (one of the few...).
> But laby, for example, became reproducible in unstable after the change.

Could you elaborate by what you mean by "snippet" here? src:belenios
has the following in debian/rules:

  4 %:
  5         dh $@ --with ocaml
[…]
  8 override_dh_auto_build:
  9         $(MAKE) minimal

… whilst src:laby has:

 11 override_dh_auto_build:
 12         $(MAKE) $(OCAML_BEST)
[…]
 22 %:
 23         dh $@ --with ocaml

§

Whilst obviously not strictly identical (eg. the use of the `minimal`
build target), I remain unclear on what the material difference is.


Best wishes,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org 🍥 chris-lamb.co.uk
       `-