eglibc: Remove eglibc support

As posted on http://www.eglibc.org/
====================
EGLIBC is no longer developed and such goals are now being addressed
directly in GLIBC.
====================

I'm not interested in maintaining build support for unsupported
software.

Older branches of crosstool-ng continue to have eglibc support.
If you find issues with older branches, I'm always open to pull
requests.

Removing eglibc also frees up glibc cleanup and build optimization.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

1 files changed, 0 insertions, 540 deletions

diff --git a/scripts/build/libc/glibc-eglibc.sh-common b/scripts/build/libc/glibc-eglibc.sh-common
deleted file mode 100644
index 28a36bd..0000000
--- a/scripts/build/libc/glibc-eglibc.sh-common
+++ /dev/null
@@ -1,540 +0,0 @@
-# This file contains the functions common to glibc and eglibc
-
-# Extract the C library tarball(s)
-do_libc_extract() {
-    local addon
-
-    # Attempt CT_EXTRACT only if NOT custom, or CUSTOM_LOCATION is not a directory
-    if [ "${CT_LIBC_CUSTOM}" != "y" \
-         -o ! -d "${CT_LIBC_CUSTOM_LOCATION}" ]; then
-        CT_Extract "${CT_LIBC}-${CT_LIBC_VERSION}"
-    fi
-    CT_Pushd "${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
-    # Attempt CT_PATCH only if NOT custom
-    if [ "${CT_LIBC_CUSTOM}" != "y" ]; then
-        CT_Patch nochdir "${CT_LIBC}" "${CT_LIBC_VERSION}"
-    fi
-
-    # Extract the add-opns
-    for addon in $(do_libc_add_ons_list " "); do
-        # If the addon was bundled with the main archive, we do not
-        # need to extract it. Worse, if we were to try to extract
-        # it, we'd get an error.
-        if [ -d "${addon}" ]; then
-            CT_DoLog DEBUG "Add-on '${addon}' already present, skipping extraction"
-            continue
-        fi
-
-        CT_Extract nochdir "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
-
-        CT_TestAndAbort "Error in add-on '${addon}': both short and long names in tarball" \
-            -d "${addon}" -a -d "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
-
-        # Some addons have the 'long' name, while others have the
-        # 'short' name, but patches are non-uniformly built with
-        # either the 'long' or 'short' name, whatever the addons name
-        # but we prefer the 'short' name and avoid duplicates.
-        if [ -d "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" ]; then
-            CT_DoExecLog FILE mv "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" "${addon}"
-        fi
-
-        CT_DoExecLog FILE ln -s "${addon}" "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
-
-        CT_Patch nochdir "${CT_LIBC}" "${addon}-${CT_LIBC_VERSION}"
-
-        # Remove the long name since it can confuse configure scripts to run
-        # the same source twice.
-        rm "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
-    done
-
-    # The configure files may be older than the configure.in files
-    # if using a snapshot (or even some tarballs). Fake them being
-    # up to date.
-    find . -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL
-
-    CT_Popd
-
-    if [ "${CT_LIBC_LOCALES}" = "y" ]; then
-        do_libc_locales_extract
-    fi
-}
-
-# Build and install headers and start files
-do_libc_start_files() {
-    # Start files and Headers should be configured the same way as the
-    # final libc, but built and installed differently.
-    do_libc_backend libc_mode=startfiles
-}
-
-# This function builds and install the full C library
-do_libc() {
-    do_libc_backend libc_mode=final
-}
-
-# This backend builds the C library once for each multilib
-# variant the compiler gives us
-# Usage: do_libc_backend param=value [...]
-#   Parameter           : Definition                            : Type      : Default
-#   libc_mode           : 'startfiles' or 'final'               : string    : (none)
-do_libc_backend() {
-    local libc_mode
-    local -a multilibs
-    local multilib
-    local multi_dir
-    local multi_flags
-    local extra_dir
-    local libc_headers libc_startfiles libc_full
-    local hdr
-    local arg
-
-    for arg in "$@"; do
-        eval "${arg// /\\ }"
-    done
-
-    case "${libc_mode}" in
-        startfiles)
-            CT_DoStep INFO "Installing C library headers & start files"
-            hdr=y
-            libc_startfiles=y
-            libc_full=
-            ;;
-        final)
-            CT_DoStep INFO "Installing C library"
-            hdr=
-            libc_startfiles=
-            libc_full=y
-            ;;
-        *)  CT_Abort "Unsupported (or unset) libc_mode='${libc_mode}'";;
-    esac
-
-    # If gcc is not configured for multilib, it still prints
-    # a single line for the default settings
-    multilibs=( $("${CT_TARGET}-gcc" -print-multi-lib 2>/dev/null) )
-    for multilib in "${multilibs[@]}"; do
-        multi_dir="${multilib%%;*}"
-        if [ "${multi_dir}" != "." ]; then
-            CT_DoStep INFO "Building for multilib subdir='${multi_dir}'"
-
-            extra_flags="$( echo "${multilib#*;}"       \
-                            |${sed} -r -e 's/@/ -/g;'   \
-                          )"
-            extra_dir="/${multi_dir}"
-
-            # glibc install its files in ${extra_dir}/{usr/,}lib
-            # while gcc expects them in {,usr/}lib/${extra_dir}.
-            # Prepare some symlinks so glibc installs in fact in
-            # the proper place
-            # We do it in the start-files step, so it is not needed
-            # to do it in the final step, as the symlinks will
-            # already exist
-            if [ "${libc_mode}" = "startfiles" ]; then
-                CT_Pushd "${CT_SYSROOT_DIR}"
-                CT_DoExecLog ALL mkdir -p "lib/${multi_dir}"        \
-                                          "usr/lib/${multi_dir}"    \
-                                          "${multi_dir}"            \
-                                          "${multi_dir}/usr"
-                CT_DoExecLog ALL ln -sf "../lib/${multi_dir}" "${multi_dir}/lib"
-                CT_DoExecLog ALL ln -sf "../../usr/lib/${multi_dir}" "${multi_dir}/usr/lib"
-                CT_Popd
-            fi
-            libc_headers=
-        else
-            extra_dir=
-            extra_flags=
-            libc_headers="${hdr}"
-        fi
-
-        CT_mkdir_pushd "${CT_BUILD_DIR}/build-libc-${libc_mode}${extra_dir//\//_}"
-
-        do_libc_backend_once extra_dir="${extra_dir}"               \
-                             extra_flags="${extra_flags}"           \
-                             libc_headers="${libc_headers}"         \
-                             libc_startfiles="${libc_startfiles}"   \
-                             libc_full="${libc_full}"
-
-        CT_Popd
-
-        if [ "${multi_dir}" != "." ]; then
-            if [ "${libc_mode}" = "final" ]; then
-                CT_DoLog EXTRA "Fixing up multilib location"
-
-                # rewrite the library multiplexers
-                for d in "lib/${multi_dir}" "usr/lib/${multi_dir}"; do
-                    for l in libc libpthread libgcc_s; do
-                        if [    -f "${CT_SYSROOT_DIR}/${d}/${l}.so"    \
-                             -a ! -L ${CT_SYSROOT_DIR}/${d}/${l}.so    ]
-                        then
-                            CT_DoExecLog DEBUG ${sed} -r -i                                 \
-                                                      -e "s:/lib/:/lib/${multi_dir}/:g;"    \
-                                                      "${CT_SYSROOT_DIR}/${d}/${l}.so"
-                        fi
-                    done
-                done
-                # Remove the multi_dir now it is no longer useful
-                CT_DoExecLog DEBUG rm -rf "${CT_SYSROOT_DIR}/${multi_dir}"
-            fi # libc_mode == final
-
-            CT_EndStep
-        fi
-    done
-
-    CT_EndStep
-}
-
-# This backend builds the C library once
-# Usage: do_libc_backend_once param=value [...]
-#   Parameter           : Definition                            : Type      : Default
-#   libc_headers        : Build libc headers                    : bool      : n
-#   libc_startfiles     : Build libc start-files                : bool      : n
-#   libc_full           : Build full libc                       : bool      : n
-#   extra_flags         : Extra CFLAGS to use (for multilib)    : string    : (empty)
-#   extra_dir           : Extra subdir for multilib             : string    : (empty)
-do_libc_backend_once() {
-    local libc_headers
-    local libc_startfiles
-    local libc_full
-    local extra_flags
-    local extra_dir
-    local src_dir="${CT_SRC_DIR}/${CT_LIBC}-${CT_LIBC_VERSION}"
-    local extra_cc_args
-    local -a extra_config
-    local -a extra_make_args
-    local glibc_cflags
-    local float_extra
-    local endian_extra
-    local arg
-
-    for arg in "$@"; do
-        eval "${arg// /\\ }"
-    done
-
-    CT_DoLog EXTRA "Configuring C library"
-
-    case "${CT_LIBC}" in
-        eglibc)
-            if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
-                CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
-            fi
-            if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then
-                OPTIMIZE=-Os
-            else
-                OPTIMIZE=-O2
-            fi
-            ;;
-        glibc)
-            # glibc can't be built without -O2 (reference needed!)
-            OPTIMIZE=-O2
-            # Also, if those two are missing, iconv build breaks
-            extra_config+=( --disable-debug --disable-sanity-checks )
-            ;;
-    esac
-
-    # always include rpc, the user can still override it with TI-RPC
-    extra_config+=( --enable-obsolete-rpc )
-
-    # Add some default glibc config options if not given by user.
-    # We don't need to be conditional on wether the user did set different
-    # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY is passed after
-    # extra_config
-
-    extra_config+=("$(do_libc_min_kernel_config)")
-
-    case "${CT_THREADS}" in
-        nptl)           extra_config+=("--with-__thread" "--with-tls");;
-        linuxthreads)   extra_config+=("--with-__thread" "--without-tls" "--without-nptl");;
-        none)           extra_config+=("--without-__thread" "--without-nptl")
-                        case "${CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY[*]}" in
-                            *-tls*) ;;
-                            *) extra_config+=("--without-tls");;
-                        esac
-                        ;;
-    esac
-
-    case "${CT_SHARED_LIBS}" in
-        y) extra_config+=("--enable-shared");;
-        *) extra_config+=("--disable-shared");;
-    esac
-
-    float_extra="$( echo "${extra_flags}"       \
-                    |${sed} -r -e '/^(.*[[:space:]])?-m(hard|soft)-float([[:space:]].*)?$/!d;'  \
-                               -e 's//\2/;'     \
-                  )"
-    case "${float_extra}" in
-        hard)   extra_config+=("--with-fp");;
-        soft)   extra_config+=("--without-fp");;
-        "")
-            case "${CT_ARCH_FLOAT}" in
-                hard|softfp)    extra_config+=("--with-fp");;
-                soft)           extra_config+=("--without-fp");;
-            esac
-            ;;
-    esac
-
-    if [ "${CT_LIBC_DISABLE_VERSIONING}" = "y" ]; then
-        extra_config+=("--disable-versioning")
-    fi
-
-    if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then
-        extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}")
-    fi
-
-    case "$(do_libc_add_ons_list ,)" in
-        "") extra_config+=("--enable-add-ons=no");;
-        *)  extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
-    esac
-
-    extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
-    [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
-
-    # Extract the endianness options if any
-    # This should cover all possible endianness options
-    # in gcc, but it is prone to bit-rot... :-(
-    endian_extra="$( echo "${extra_flags}"      \
-                     |${sed} -r -e '/^(.*[[:space:]])?-(E[BL]|m((big|little)(-endian)?|e?[bl]))([[:space:]].*)?$/!d;' \
-                                -e 's//\2/;'    \
-                   )"
-    case "${endian_extra}" in
-        EB|mbig-endian|mbig|meb|mb)
-            extra_cc_args="${extra_cc_args} ${endian_extra}"
-            ;;
-        EL|mlittle-endian|mlittle|mel|ml)
-            extra_cc_args="${extra_cc_args} ${endian_extra}"
-            ;;
-        "") extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
-            ;;
-    esac
-
-    touch config.cache
-    if [ "${CT_LIBC_GLIBC_FORCE_UNWIND}" = "y" ]; then
-        echo "libc_cv_forced_unwind=yes" >>config.cache
-        echo "libc_cv_c_cleanup=yes" >>config.cache
-    fi
-
-    # Pre-seed the configparms file with values from the config option
-    printf "%s\n" "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
-
-    cross_cc=$(CT_Which "${CT_TARGET}-gcc")
-    extra_cc_args+=" ${extra_flags}"
-
-    case "${CT_LIBC_ENABLE_FORTIFIED_BUILD}" in
-        y)  ;;
-        *)  glibc_cflags+=" -U_FORTIFY_SOURCE";;
-    esac
-    glibc_cflags+=" ${CT_TARGET_CFLAGS} ${OPTIMIZE} ${CT_LIBC_GLIBC_EXTRA_CFLAGS}"
-
-    # ./configure is mislead by our tools override wrapper for bash
-    # so just tell it where the real bash is _on_the_target_!
-    # Notes:
-    # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL
-    # - ${BASH_SHELL}            is only used to set BASH
-    # - ${BASH}                  is only used to set the shebang
-    #                            in two scripts to run on the target
-    # So we can safely bypass bash detection at compile time.
-    # Should this change in a future eglibc release, we'd better
-    # directly mangle the generated scripts _after_ they get built,
-    # or even after they get installed...
-    echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache
-
-    # Configure with --prefix the way we want it on the target...
-    # There are a whole lot of settings here.  You'll probably want
-    # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG_ARRAY
-    # Compare these options with the ones used when installing the glibc headers above - they're different.
-    # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"
-    # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
-    # Set BUILD_CC, or we won't be able to build datafiles
-    # Run explicitly through CONFIG_SHELL, or the build breaks badly (loop-of-death)
-    # when the shell is not bash... Sigh... :-(
-
-    CT_DoLog DEBUG "Using gcc for target    : '${cross_cc}'"
-    CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
-    CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"
-    CT_DoLog DEBUG "Extra CC args passed    : '${glibc_cflags}'"
-    CT_DoLog DEBUG "Extra flags (multilib)  : '${extra_flags}'"
-
-    CT_DoExecLog CFG                                                \
-    BUILD_CC="${CT_BUILD}-gcc"                                      \
-    CFLAGS="${glibc_cflags}"                                        \
-    CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
-    AR=${CT_TARGET}-ar                                              \
-    RANLIB=${CT_TARGET}-ranlib                                      \
-    "${CONFIG_SHELL}"                                               \
-    "${src_dir}/configure"                                          \
-        --prefix=/usr                                               \
-        --build=${CT_BUILD}                                         \
-        --host=${CT_TARGET}                                         \
-        --cache-file="$(pwd)/config.cache"                          \
-        --without-cvs                                               \
-        --disable-profile                                           \
-        --without-gd                                                \
-        --with-headers="${CT_HEADERS_DIR}"                          \
-        "${extra_config[@]}"                                        \
-        "${CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY[@]}"
-
-    # build hacks
-    case "${CT_ARCH},${CT_ARCH_CPU}" in
-        powerpc,8??)
-            # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
-            CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
-            extra_make_args+=( ASFLAGS="-DBROKEN_PPC_8xx_CPU15" )
-            ;;
-    esac
-
-    if [ "${libc_headers}" = "y" ]; then
-        CT_DoLog EXTRA "Installing C library headers"
-
-        # use the 'install-headers' makefile target to install the
-        # headers
-        CT_DoExecLog ALL make ${JOBSFLAGS}                          \
-                         install_root=${CT_SYSROOT_DIR}${extra_dir} \
-                         install-bootstrap-headers=yes              \
-                         "${extra_make_args[@]}"                    \
-                         install-headers
-
-        # For glibc, a few headers need to be manually installed
-        if [ "${CT_LIBC}" = "glibc" ]; then
-            # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
-            # so do them by hand.  We can tolerate an empty stubs.h for the moment.
-            # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
-            mkdir -p "${CT_HEADERS_DIR}/gnu"
-            CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"
-            CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}/include/features.h"  \
-                                   "${CT_HEADERS_DIR}/features.h"
-
-            # Building the bootstrap gcc requires either setting inhibit_libc, or
-            # having a copy of stdio_lim.h... see
-            # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
-            CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
-
-            # Following error building gcc-4.0.0's gcj:
-            #  error: bits/syscall.h: No such file or directory
-            # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
-            # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
-            # Of course, only copy it if it does not already exist
-            case "${CT_ARCH}" in
-                arm)    ;;
-                *)  if [ -f "${CT_HEADERS_DIR}/bits/syscall.h" ]; then
-                        CT_DoLog ALL "Not over-writing existing bits/syscall.h"
-                    elif [ -f "misc/bits/syscall.h" ]; then
-                        CT_DoExecLog ALL cp -v "misc/bits/syscall.h"            \
-                                               "${CT_HEADERS_DIR}/bits/syscall.h"
-                    else
-                        # "Old" glibces do not have the above file,
-                        # but provide this one:
-                        CT_DoExecLog ALL cp -v "misc/syscall-list.h"            \
-                                               "${CT_HEADERS_DIR}/bits/syscall.h"
-                    fi
-                    ;;
-            esac
-        fi
-    fi # libc_headers == y
-
-    if [ "${libc_startfiles}" = "y" ]; then
-        if [ "${CT_THREADS}" = "nptl" ]; then
-            CT_DoLog EXTRA "Installing C library start files"
-
-            # there are a few object files needed to link shared libraries,
-            # which we build and install by hand
-            CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}${extra_dir}/usr/lib"
-            CT_DoExecLog ALL make ${JOBSFLAGS}  \
-                        "${extra_make_args[@]}" \
-                        csu/subdir_lib
-            CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o    \
-                                "${CT_SYSROOT_DIR}${extra_dir}/usr/lib"
-
-            # Finally, 'libgcc_s.so' requires a 'libc.so' to link against.
-            # However, since we will never actually execute its code,
-            # it doesn't matter what it contains.  So, treating '/dev/null'
-            # as a C source file, we produce a dummy 'libc.so' in one step
-            CT_DoExecLog ALL "${cross_cc}" -nostdlib        \
-                                           -nostartfiles    \
-                                           -shared          \
-                                           -x c /dev/null   \
-                                           -o "${CT_SYSROOT_DIR}${extra_dir}/usr/lib/libc.so"
-        fi # threads == nptl
-    fi # libc_headers == y
-
-    if [ "${libc_full}" = "y" ]; then
-        CT_DoLog EXTRA "Building C library"
-        CT_DoExecLog ALL make ${JOBSFLAGS}              \
-                              "${extra_make_args[@]}"   \
-                              all
-
-        CT_DoLog EXTRA "Installing C library"
-        CT_DoExecLog ALL make ${JOBSFLAGS}                                  \
-                              "${extra_make_args[@]}"                       \
-                              install_root="${CT_SYSROOT_DIR}${extra_dir}"  \
-                              install
-
-        if [ "${CT_BUILD_MANUALS}" = "y" ]; then
-            CT_DoLog EXTRA "Building and installing the C library manual"
-            # Omit JOBSFLAGS as GLIBC has problems building the
-            # manuals in parallel
-            CT_DoExecLog ALL make pdf html
-            # EGLIBC doesn't have a install-{pdf.html}, and older
-            # versions leave the manuals in the source directory
-            CT_DoExecLog ALL mkdir -p ${CT_PREFIX_DIR}/share/doc
-            if [ "${CT_LIBC_EGLIBC_2_16_or_later}" = "y" ]; then
-                CT_DoExecLog ALL cp -av manual/*.pdf manual/libc \
-                    ${CT_PREFIX_DIR}/share/doc
-            else
-                CT_DoExecLog ALL cp -av ${src_dir}/manual/*.pdf ${src_dir}/manual/libc \
-                    ${CT_PREFIX_DIR}/share/doc
-            fi
-        fi
-
-        if [ "${CT_LIBC_LOCALES}" = "y" ]; then
-            do_libc_locales
-        fi
-    fi # libc_full == y
-}
-
-# Build up the addons list, separated with $1
-do_libc_add_ons_list() {
-    local sep="$1"
-    local addons_list="$( echo "${CT_LIBC_ADDONS_LIST}"         \
-                          |sed -r -e "s/[[:space:],]/${sep}/g;" \
-                        )"
-    if [ "${CT_LIBC_GLIBC_2_20_or_later}" != "y" ]; then
-        case "${CT_THREADS}" in
-            none)   ;;
-            *)      addons_list="${addons_list}${sep}${CT_THREADS}";;
-        esac
-    fi
-    [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
-    # Remove duplicate, leading and trailing separators
-    echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;"
-}
-
-# Compute up the minimum supported Linux kernel version
-do_libc_min_kernel_config() {
-    local min_kernel_config
-
-    case "${CT_LIBC_GLIBC_EXTRA_CONFIG_ARRAY[*]}" in
-        *--enable-kernel*) ;;
-        *)  if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then
-                # We can't rely on the kernel version from the configuration,
-                # because it might not be available if the user uses pre-installed
-                # headers. On the other hand, both method will have the kernel
-                # version installed in "usr/include/linux/version.h" in the sysroot.
-                # Parse that instead of having two code-paths.
-                version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h"
-                if [ ! -f "${version_code_file}" -o ! -r "${version_code_file}" ]; then
-                    CT_Abort "Linux version is unavailable in installed headers files"
-                fi
-                version_code="$( grep -E LINUX_VERSION_CODE "${version_code_file}"  \
-                                 |cut -d ' ' -f 3                                   \
-                               )"
-                version=$(((version_code>>16)&0xFF))
-                patchlevel=$(((version_code>>8)&0xFF))
-                sublevel=$((version_code&0xFF))
-                min_kernel_config="${version}.${patchlevel}.${sublevel}"
-            elif [ "${CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then
-                # Trim the fourth part of the linux version, keeping only the first three numbers
-                min_kernel_config="$( echo "${CT_LIBC_GLIBC_MIN_KERNEL_VERSION}"            \
-                                      |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;' \
-                                    )"
-            fi
-            echo "--enable-kernel=${min_kernel_config}"
-            ;;
-    esac
-}