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quantum_package/install/scripts/install_ocaml.sh

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#!/bin/bash
cd ..
QP_ROOT=$PWD
cd -
# Normal installation
PACKAGES="core cryptokit ocamlfind sexplib ZMQ"
# Needed for ZeroMQ
export C_INCLUDE_PATH="${QP_ROOT}"/lib:"${C_INCLUDE_PATH}"
export LIBRARY_PATH="${QP_ROOT}"/lib:"${LIBRARY_PATH}"
export LD_LIBRARY_PATH="${QP_ROOT}"/lib:"${LD_LIBRARY_PATH}"
# return 0 if program version is equal or greater than check version
check_version()
{
local version=$1 check=$2
local winner=$(echo -e "$version\n$check" | sed '/^$/d' | sort -nr | head -1)
[[ "$winner" = "$version" ]] && return 0
return 1
}
i=$(gcc -dumpversion)
check_version i 4.6
if [[ $? -ne 0 ]]
then
echo "GCC version $(gcc -dumpversion) too old. GCC >= 4.6 required."
exit 1
fi
if [[ -d ${HOME}/.opam ]]
then
source ${HOME}/.opam/opam-init/init.sh > /dev/null 2> /dev/null || true
fi
cd Downloads || exit 1
chmod +x ocaml.sh || exit 1
echo N | ./ocaml.sh ${QP_ROOT}/bin/ || exit 1
${QP_ROOT}/bin/opam config setup -a -q || exit 1
export LD_LIBRARY_PATH=${QP_ROOT}/lib:${LD_LIBRARY_PATH}
export LIBRARY_PATH=${QP_ROOT}/lib:${LIBRARY_PATH}
export C_INCLUDE_PATH=${QP_ROOT}/lib:${C_INCLUDE_PATH}
source ${HOME}/.opam/opam-init/init.sh > /dev/null 2> /dev/null || true
NCPUs=$(cat /proc/cpuinfo | grep -i MHz | wc -l)
${QP_ROOT}/bin/opam install -j ${NCPUs} ${PACKAGES} -y -q || exit 1
rm -f ../_build/ocaml.log
exit 0