# eglibc build functions (initially by Thomas JOURDAN).

# Add the definitions common to glibc and eglibc

#   do_libc_extract

#   do_libc_start_files

#   do_libc

#   do_libc_finish

#   do_libc_add_ons_list

#   do_libc_min_kernel_config

. "${CT_LIB_DIR}/scripts/build/libc/glibc-eglibc.sh-common"

# Download glibc

# eglibc is only available through subversion, there are no

# snapshots available.

do_libc_get() {

    local addon

    local svn_base="svn://svn.eglibc.org"

    case "${CT_LIBC_VERSION}" in

        trunk)  svn_base+="/trunk";;

        *)      svn_base+="/branches/eglibc-${CT_LIBC_VERSION}";;

    esac

    CT_GetSVN "eglibc-${CT_LIBC_VERSION}"   \

              "${svn_base}/libc"            \

              "${CT_EGLIBC_REVISION:-HEAD}"

    for addon in $(do_libc_add_ons_list " "); do

        # NPTL addon is not to be downloaded, in any case

        [ "${addon}" = "nptl" ] && continue || true

        if ! CT_GetSVN "eglibc-${addon}-${CT_LIBC_VERSION}" \

                       "${svn_base}/${addon}"               \

                       "${CT_EGLIBC_REVISION:-HEAD}"

        then

            # Some add-ons are bundled with the main sources

            # so failure to download them is expected

            CT_DoLog DEBUG "Addon '${addon}' could not be downloaded."

            CT_DoLog DEBUG "We'll see later if we can find it in the source tree"

        fi

    done

}

# Copy user provided eglibc configuration file if provided

do_libc_check_config() {

    if [ "${CT_EGLIBC_CUSTOM_CONFIG}" != "y" ]; then

        return 0

    fi

    CT_DoStep INFO "Checking C library configuration"

    CT_TestOrAbort "You did not provide an eglibc config file!" \

        -n "${CT_EGLIBC_OPTION_GROUPS_FILE}" -a \

        -f "${CT_EGLIBC_OPTION_GROUPS_FILE}"

    CT_DoExecLog ALL cp "${CT_EGLIBC_OPTION_GROUPS_FILE}" "${CT_CONFIG_DIR}/eglibc.config"

    # NSS configuration

    if grep -E '^OPTION_EGLIBC_NSSWITCH[[:space:]]*=[[:space:]]*n' "${CT_EGLIBC_OPTION_GROUPS_FILE}" >/dev/null 2>&1; then

        CT_DoLog DEBUG "Using fixed-configuration nsswitch facility"

        if [ "${CT_EGLIBC_BUNDLED_NSS_CONFIG}" = "y" ]; then

            nss_config="${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/nss/fixed-nsswitch.conf"

        else

            nss_config="${CT_EGLIBC_NSS_CONFIG_FILE}"

        fi

        CT_TestOrAbort "NSS config file not found!" -n "${nss_config}" -a -f "${nss_config}"

        CT_DoExecLog ALL cp "${nss_config}" "${CT_CONFIG_DIR}/nsswitch.config"

        echo "OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG = ${CT_CONFIG_DIR}/nsswitch.config" \

            >> "${CT_CONFIG_DIR}/eglibc.config"

        if [ "${CT_EGLIBC_BUNDLED_NSS_FUNCTIONS}" = "y" ]; then

            nss_functions="${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/nss/fixed-nsswitch.functions"

        else

            nss_functions="${CT_EGLIBC_NSS_FUNCTIONS_FILE}"

        fi

        CT_TestOrAbort "NSS functions file not found!" -n "${nss_functions}" -a -f "${nss_functions}"

        CT_DoExecLog ALL cp "${nss_functions}" "${CT_CONFIG_DIR}/nsswitch.functions"

        echo "OPTION_EGLIBC_NSSWITCH_FIXED_FUNCTIONS = ${CT_CONFIG_DIR}/nsswitch.functions" \

            >> "${CT_CONFIG_DIR}/eglibc.config"

    else

        CT_DoLog DEBUG "Using full-blown nsswitch facility"

    fi

    CT_EndStep

}