* Package:    dev-ml/ocaml-ipaddr-2.7.1
 * Repository: gentoo
 * Maintainer: ml@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux ocamlopt userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking ocaml-ipaddr-2.7.1.tar.gz to /var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work
>>> Source unpacked in /var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work
>>> Preparing source in /var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work/ocaml-ipaddr-2.7.1 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work/ocaml-ipaddr-2.7.1 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work/ocaml-ipaddr-2.7.1 ...
ocamlfind ocamldep -package 'bytes sexplib ppx_sexp_conv' -modules lib/ipaddr.ml > lib/ipaddr.ml.depends
+ ocamlfind ocamldep -package 'bytes sexplib ppx_sexp_conv' -modules lib/ipaddr.ml > lib/ipaddr.ml.depends
File "_none_", line 1:
Error: Cannot load /usr/lib64/ocaml/ppx_sexp_conv/./ppx_sexp_conv.cmxs: error loading shared library: /usr/lib64/ocaml/ppx_sexp_conv/./ppx_sexp_conv.cmxs: undefined symbol: camlPpx_type_conv__Type_conv__make_inner_8316
Command exited with code 2.
pkg.ml: [ERROR] cmd ['ocamlbuild' '-use-ocamlfind' '-classic-display' '-tag' 'debug'
     '-build-dir' '_build' 'opam' 'pkg/META' 'CHANGES.md' 'LICENSE.md'
     'README.md' 'lib/ipaddr.a' 'lib/ipaddr.cmxs' 'lib/ipaddr.cmxa'
     'lib/ipaddr.cma' 'lib/macaddr.cmx' 'lib/macaddr.cmi' 'lib/macaddr.mli'
     'lib/ipaddr.cmx' 'lib/ipaddr.cmi' 'lib/ipaddr.mli' 'lib/ipaddr_unix.a'
     'lib/ipaddr_unix.cmxs' 'lib/ipaddr_unix.cmxa' 'lib/ipaddr_unix.cma'
     'lib/ipaddr_unix.cmx' 'lib/ipaddr_unix.cmi' 'lib/ipaddr_unix.mli'
     'top/ipaddr_top.a' 'top/ipaddr_top.cmxs' 'top/ipaddr_top.cmxa'
     'top/ipaddr_top.cma' 'top/ipaddr_top.cmx' 'top/ipaddr_top.cmi'
     'top/ipaddr_top.mli']: exited with 10
 * ERROR: dev-ml/ocaml-ipaddr-2.7.1::gentoo failed (compile phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line 115:  Called src_compile
 *   environment, line 229:  Called die
 * The specific snippet of code:
 *       ocaml pkg/pkg.ml build --tests $(usex test "true" "false") || die
 * 
 * If you need support, post the output of `emerge --info '=dev-ml/ocaml-ipaddr-2.7.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-ml/ocaml-ipaddr-2.7.1::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-ml:ocaml-ipaddr-2.7.1:20170131-054831.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work/ocaml-ipaddr-2.7.1'
 * S: '/var/tmp/portage/dev-ml/ocaml-ipaddr-2.7.1/work/ocaml-ipaddr-2.7.1'