Bug#868938: FTBFS with ocaml 4.05.0

[Stéphane Glondu <glondu@debian.org>]

Package: src:polygen
Version: 1.0.6.ds2-15
Severity: important

Dear maintainer,

polygen FTBFS with ocaml 4.05.0. Relevant log:
> [...]
> ocamlc -c -unsafe check.ml -o check.cmo
> File "check.ml", line 40, characters 59-62:
> Error: This expression has type elt -> Prelude.Prelude.symbol
>        but an expression was expected of type elt -> elt
>        Type Prelude.Prelude.symbol = string is not compatible with type
>          elt = Prelude.Prelude.symbol * Err.loc option 
> makefile:55: recipe for target 'check.cmo' failed
> make[1]: *** [check.cmo] Error 2
> make[1]: Leaving directory '/tmp/polygen-1.0.6.ds2/src'
> /usr/share/cdbs/1/class/makefile.mk:77: recipe for target 'debian/stamp-makefile-build' failed
> make: *** [debian/stamp-makefile-build] Error 2
> dpkg-buildpackage: error: debian/rules build gave error exit status 2

Cheers,

-- 
Stéphane

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.11.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8), LANGUAGE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)