Fix parallel build of coq-bdds.8.8.0
Fix parallel build of coq-bdds.8.8.0

gmalecha/opam-coq-archive,gmalecha/opam-coq-archive,mattam82/coq-opam-archive,mattam82/coq-opam-archive,coq/opam-coq-archive,gmalecha/opam-coq-archive,mattam82/coq-opam-archive