#=== ERROR while installing mirage-entropy-xen.0.3.0 ==========================#
# opam-version 1.2.1
# os           linux
# command      make
# path         /home/travis/.opam/system/build/mirage-entropy-xen.0.3.0
# compiler     system (4.01.0)
# exit-code    2
# env-file     /home/travis/.opam/system/build/mirage-entropy-xen.0.3.0/mirage-entropy-xen-7225-110000.env
# stdout-file  /home/travis/.opam/system/build/mirage-entropy-xen.0.3.0/mirage-entropy-xen-7225-110000.out
# stderr-file  /home/travis/.opam/system/build/mirage-entropy-xen.0.3.0/mirage-entropy-xen-7225-110000.err
### stdout ###
# ocaml setup.ml -build 
# ocamlfind ocamlopt unix.cmxa -I /usr/lib/ocaml/ocamlbuild /usr/lib/ocaml/ocamlbuild/ocamlbuildlib.cmxa -linkpkg myocamlbuild.ml /usr/lib/ocaml/ocamlbuild/ocamlbuild.cmx -o myocamlbuild
# /home/travis/.opam/system/bin/ocamlfind ocamlc -ccopt -O3 -ccopt '-std=c99' -ccopt -Wall -ccopt -Wpedantic -ccopt '-isystem/home/travis/.opam/system/lib/pkgconfig/../../include/minios-xen -isystem/home/travis/.opam/system/lib/pkgconfig/../../include/minios-xen/posix -m64 -mno-red-zone -fno-reorder-blocks -fno-stack-protector -fno-asynchronous-unwind-tables -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.6/include -U__linux__ -U__FreeBSD__ -U__sun__ -U__linux -D__MINIOS__ -I/home/travis/.opam/system/lib/pkgconfig/../../include/mirage-xen/include -I/home/travis/.opam/system/lib/pkgconfig/../../include/mirage-xen-ocaml/include -I/home/travis/.opam/system/lib/pkgconfig/../../include/mirage-xen-posix/include -I/home/travis/.opam/system/include  ' -ccopt -mrdrnd -ccopt -mrdseed -c lib/entropy_cpu_xen_stubs.c
# + /home/travis/.opam/system/bin/ocamlfind ocamlc -ccopt -O3 -ccopt '-std=c99' -ccopt -Wall -ccopt -Wpedantic -ccopt '-isystem/home/travis/.opam/system/lib/pkgconfig/../../include/minios-xen -isystem/home/travis/.opam/system/lib/pkgconfig/../../include/minios-xen/posix -m64 -mno-red-zone -fno-reorder-blocks -fno-stack-protector -fno-asynchronous-unwind-tables -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.6/include -U__linux__ -U__FreeBSD__ -U__sun__ -U__linux -D__MINIOS__ -I/home/travis/.opam/system/lib/pkgconfig/../../include/mirage-xen/include -I/home/travis/.opam/system/lib/pkgconfig/../../include/mirage-xen-ocaml/include -I/home/travis/.opam/system/lib/pkgconfig/../../include/mirage-xen-posix/include -I/home/travis/.opam/system/include  ' -ccopt -mrdrnd -ccopt -mrdseed -c lib/entropy_cpu_xen_stubs.c
# cc1: error: unrecognized command line option ‘-mrdseed’
# cc1: error: unrecognized command line option ‘-Wpedantic’
# Command exited with code 2.
### stderr ###
# E: Failure("Command ''/usr/bin/ocamlbuild' lib/libmirage-entropy-xen_stubs.a lib/dllmirage-entropy-xen_stubs.so lib/mirage-entropy-xen.cma lib/mirage-entropy-xen.cmxa lib/mirage-entropy-xen.a lib/mirage-entropy-xen.cmxs -use-ocamlfind -tag debug' terminated with error code 10")
# make: *** [build] Error 1