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#!/usr/bin/env bash
set -e -x
source default-config
./install-os-packages.sh curl
if [[ "${GCC_SOURCES_VERSION}" == "latest" ]]; then
GCC_SOURCES_VERSION=$(curl -sSL https://ftpmirror.gnu.org/gcc/ | grep -oE 'gcc-[0-9]+(\.[0-9]+)+' | sort -Vr | head -n1)
fi
GCC_VERSION_SHORT=$(echo "$GCC_SOURCES_VERSION" | grep -oE '[0-9]' | head -n1)
echo "Will download ${GCC_SOURCES_VERSION} (short version: $GCC_VERSION_SHORT)."
THREADS=$(grep -c ^processor /proc/cpuinfo)
mkdir "${WORKSPACE}/gcc"
pushd "${WORKSPACE}/gcc"
wget https://ftpmirror.gnu.org/gcc/${GCC_SOURCES_VERSION}/${GCC_SOURCES_VERSION}.tar.xz
tar xf ${GCC_SOURCES_VERSION}.tar.xz
pushd ${GCC_SOURCES_VERSION}
./contrib/download_prerequisites
popd
mkdir gcc-build
pushd gcc-build
../${GCC_SOURCES_VERSION}/configure --enable-languages=c,c++ --disable-multilib
make -j $THREADS
$SUDO make install
popd
popd
$SUDO ln -sf /usr/local/bin/gcc /usr/local/bin/gcc-${GCC_GCC_SOURCES_VERSION_SHORT}
$SUDO ln -sf /usr/local/bin/g++ /usr/local/bin/g++-${GCC_GCC_SOURCES_VERSION_SHORT}
$SUDO ln -sf /usr/local/bin/gcc /usr/local/bin/cc
$SUDO ln -sf /usr/local/bin/g++ /usr/local/bin/c++
echo '/usr/local/lib64' | $SUDO tee /etc/ld.so.conf.d/10_local-lib64.conf
$SUDO ldconfig
hash gcc g++
gcc --version
export CC=gcc
export CXX=g++
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