Opam switch create and gcc10

EduardoRFS · June 5, 2020, 1:54pm

There is a hackish solution that doesn’t handle the ecossystem, like this, it could be integrated in opam, it uses the internal cflags as 4.10

github.com

EduardoRFS/ocaml/blob/2e153679e711dc694c698adbc410d8ea1ea7b069/esy-configure#L32


        echo "[esy-configure] Detected windows environment..."
        ./configure-windows "$@"
        ;;
    *)
        echo "[esy-configure] Detected OSX / Linux environment"
        ./configure "$@"
        ;;
esac

# fix related to -fcommon on GCC 10 on Linux
if [ "$(uname)" == 'Linux' ]; then
    VERSION_NEEDED_TO_PATCH="10"

    CC_CONFIG=$(cat Makefile.config | awk -F= '{ if ($1 == "CC") { print $2 } }')
    CC=$(echo $CC_CONFIG | awk '{ print $1 }')

    MAJOR_VERSION=$($CC -dumpversion | awk -F. '{ print $1 }' )

    if [ $MAJOR_VERSION -ge $VERSION_NEEDED_TO_PATCH ]; then
        echo 'OC_CFLAGS:=$(OC_FLAGS) -fcommon' >> Makefile.config
    fi

farukg · June 11, 2020, 5:37pm

I was searching quite a while and you provided the best and simplest workaround, thx a lot!

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Opam switch create and gcc10

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