The 0.8.6 version throws a Not_found error which breaks ocaml-gettext.
Revert back to the previous working version.
Revert "Avoid a stack overflow in the OCaml 4.05 compiler on POWER only."
This reverts commit 9c0d3bbc74.
Revert "New upstream version 0.8.6."
This reverts commit 194663eaf7.