Build of v0.14 fails on ppc64le #140
Description
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__timerfd_settime_91371':
#18 15.34 /home/opam/.opam/4.10/.opam-switch/build/core.v0.14.0/_build/default/linux_ext/src/linux_ext.ml:422: undefined reference to `core_linux_timerfd_settime'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__unsafe_timerfd_settime_91839':
#18 15.34 /home/opam/.opam/4.10/.opam-switch/build/core.v0.14.0/_build/default/linux_ext/src/linux_ext.ml:481: undefined reference to `core_linux_timerfd_settime'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__1':
#18 15.34 :(.data+0x26c0): undefined reference to `core_linux_timerfd_gettime'
#18 15.34 /usr/bin/ld: :(.data+0x26c8): undefined reference to `core_linux_timerfd_settime'
#18 15.34 /usr/bin/ld: :(.data+0x26d0): undefined reference to `core_linux_timerfd_create'
#18 15.34 /usr/bin/ld: :(.data+0x26d8): undefined reference to `core_linux_timerfd_TFD_CLOEXEC'
#18 15.34 /usr/bin/ld: :(.data+0x26e0): undefined reference to `core_linux_timerfd_TFD_NONBLOCK'
#18 15.34 /usr/bin/ld: :(.data+0x26e8): undefined reference to `core_linux_timerfd_CLOCK_MONOTONIC'
#18 15.34 /usr/bin/ld: :(.data+0x26f0): undefined reference to `core_linux_timerfd_CLOCK_REALTIME'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o):(.toc+0x98): undefined reference to `core_linux_timerfd_create'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o):(.toc+0x1e8): undefined reference to `core_linux_timerfd_gettime'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o):(.toc+0x370): undefined reference to `core_linux_timerfd_TFD_CLOEXEC'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o):(.toc+0x438): undefined reference to `core_linux_timerfd_CLOCK_REALTIME'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o):(.toc+0x4b0): undefined reference to `core_linux_timerfd_TFD_NONBLOCK'
#18 15.34 /usr/bin/ld: /home/opam/.opam/4.10/lib/core/linux_ext/linux_ext.a(linux_ext.o):(.toc+0x700): undefined reference to `core_linux_timerfd_CLOCK_MONOTONIC'
From https://ci.ocamllabs.io/github/mirage/ocaml-cohttp/commit/57ce9e94e6fd86682a1615cb1a243ef4155992e2/variant/debian-10-ocaml-4.10_ppc64 and mirage/ocaml-cohttp#709
I'll constrain older releases in opam-repo