get-gcc-version.sh

echo "$GCC_VERSION" | grep -qP "gcc-[\d\.]+$"
# Standard release
if [ $? = 0 ]
then
    GCC_TARBALL="releases/${GCC_VERSION}/${GCC_VERSION}.tar.bz2" 
    if [ $(echo "$GCC_VERSION" | cut -c5-5) -gt "4" ] 
    then
        PATCH_VERSION=$(echo "$GCC_VERSION" | cut -c5-5) 
        # Max supported gcc version in semaphore ci
        if [ $(echo "$GCC_VERSION" | cut -c5-5) -gt "5" ]
        then
            HOST_PACKAGE="5"
        else
            HOST_PACKAGE=$(echo "$GCC_VERSION" | cut -c5-5)
        fi
    else
        PATCH_VERSION=$(echo "$GCC_VERSION" | cut -c5-7)
        HOST_PACKAGE=$(echo "$GCC_VERSION" | cut -c5-7)
    fi
# Snapshot or RC
else
    GCC_TARBALL="snapshots/$(echo "$GCC_VERSION" | cut -c5-)/${GCC_VERSION}.tar.bz2"
    PATCH_VERSION=$(echo "$GCC_VERSION" | cut -c5-5)
    HOST_PACKAGE="5"
fi