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https://github.com/crosstool-ng/crosstool-ng.git
synced 2025-06-18 15:28:10 +00:00
Merge the save-sample branch to trunk:
- reorder most of the environment setup, - geting, extracting and patching are now components' sub-actions, - save the current config as a sample to be used as a pre-configured target.
This commit is contained in:
Yann E. MORIN"
@ -218,3 +218,234 @@ CT_MktempDir() {
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CT_DoYes() {
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yes "$1" || true
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}
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# Download an URL using wget
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# Usage: CT_DoGetFileWget <URL>
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CT_DoGetFileWget() {
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# Need to return true because it is legitimate to not find the tarball at
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# some of the provided URLs (think about snapshots, different layouts for
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# different gcc versions, etc...)
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# Some (very old!) FTP server might not support the passive mode, thus
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# retry without
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# With automated download as we are doing, it can be very dangerous to use
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# -c to continue the downloads. It's far better to simply overwrite the
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# destination file
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wget -nc --progress=dot:binary --tries=3 --passive-ftp "$1" || wget -nc --progress=dot:binary --tries=3 "$1" || true
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}
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# Download an URL using curl
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# Usage: CT_DoGetFileCurl <URL>
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CT_DoGetFileCurl() {
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# Note: comments about wget method are also valid here
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# Plus: no good progreess indicator is available with curl,
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# so output is consigned to oblivion
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curl --ftp-pasv -O --retry 3 "$1" >/dev/null || curl -O --retry 3 "$1" >/dev/null || true
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}
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# Wrapper function to call one of curl or wget
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# Usage: CT_DoGetFile <URL>
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CT_DoGetFile() {
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local _wget=`which wget`
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local _curl=`which curl`
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case "${_wget},${_curl}" in
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,) CT_DoError "Could find neither wget nor curl";;
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,*) CT_DoGetFileCurl "$1";;
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*) CT_DoGetFileWget "$1";;
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esac
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}
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# Download the file from one of the URLs passed as argument
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# Usage: CT_GetFile <filename> <url> [<url> ...]
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CT_GetFile() {
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local got_it
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local ext
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local url
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local file="$1"
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shift
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# Do we already have it?
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ext=`CT_GetFileExtension "${file}"`
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if [ -n "${ext}" ]; then
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if [ "${CT_FORCE_DOWNLOAD}" = "y" ]; then
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rm -f "${CT_TARBALLS_DIR}/${file}${ext}"
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else
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return 0
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fi
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fi
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CT_DoLog EXTRA "Retrieving \"${file}\""
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CT_Pushd "${CT_TARBALLS_DIR}"
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# File not yet downloaded, try to get it
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got_it=0
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if [ "${got_it}" != "y" ]; then
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# We'd rather have a bzip2'ed tarball, then gzipped, and finally plain tar.
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for ext in .tar.bz2 .tar.gz .tgz .tar; do
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# Try all urls in turn
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for url in "$@"; do
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case "${url}" in
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*) CT_DoLog EXTRA "Trying \"${url}/${file}${ext}\""
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CT_DoGetFile "${url}/${file}${ext}" 2>&1 |CT_DoLog DEBUG
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;;
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esac
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[ -f "${file}${ext}" ] && got_it=1 && break 2 || true
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done
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done
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fi
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CT_Popd
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CT_TestAndAbort "Could not download \"${file}\", and not present in \"${CT_TARBALLS_DIR}\"" ${got_it} -eq 0
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}
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# Get the file name extension of a component
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# Usage: CT_GetFileExtension <component_name-component_version>
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# If found, echoes the extension to stdout
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# If not found, echoes nothing on stdout.
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CT_GetFileExtension() {
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local ext
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local file="$1"
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local got_it=1
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CT_Pushd "${CT_TARBALLS_DIR}"
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for ext in .tar.gz .tar.bz2 .tgz .tar; do
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if [ -f "${file}${ext}" ]; then
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echo "${ext}"
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got_it=0
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break
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fi
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done
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CT_Popd
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return 0
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}
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# Extract a tarball and patch the resulting sources if necessary.
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# Some tarballs need to be extracted in specific places. Eg.: glibc addons
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# must be extracted in the glibc directory; uCLibc locales must be extracted
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# in the extra/locale sub-directory of uClibc.
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CT_ExtractAndPatch() {
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local file="$1"
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local base_file=`echo "${file}" |cut -d - -f 1`
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local ver_file=`echo "${file}" |cut -d - -f 2-`
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local official_patch_dir
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local custom_patch_dir
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local libc_addon
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local ext=`CT_GetFileExtension "${file}"`
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CT_TestAndAbort "\"${file}\" not found in \"${CT_TARBALLS_DIR}\"" -z "${ext}"
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local full_file="${CT_TARBALLS_DIR}/${file}${ext}"
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CT_Pushd "${CT_SRC_DIR}"
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# Add-ons need a little love, really.
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case "${file}" in
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glibc-[a-z]*-*)
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CT_TestAndAbort "Trying to extract the C-library addon/locales \"${file}\" when C-library not yet extracted" ! -d "${CT_LIBC_FILE}"
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cd "${CT_LIBC_FILE}"
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libc_addon=y
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[ -f ".${file}.extracted" ] && return 0
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touch ".${file}.extracted"
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;;
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uClibc-locale-*)
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CT_TestAndAbort "Trying to extract the C-library addon/locales \"${file}\" when C-library not yet extracted" ! -d "${CT_LIBC_FILE}"
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cd "${CT_LIBC_FILE}/extra/locale"
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libc_addon=y
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[ -f ".${file}.extracted" ] && return 0
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touch ".${file}.extracted"
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;;
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esac
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# If the directory exists, then consider extraction and patching done
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[ -d "${file}" ] && return 0
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CT_DoLog EXTRA "Extracting \"${file}\""
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case "${ext}" in
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.tar.bz2) tar xvjf "${full_file}" |CT_DoLog DEBUG;;
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.tar.gz|.tgz) tar xvzf "${full_file}" |CT_DoLog DEBUG;;
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.tar) tar xvf "${full_file}" |CT_DoLog DEBUG;;
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*) CT_Abort "Don't know how to handle \"${file}\": unknown extension" ;;
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esac
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# Snapshots might not have the version number in the extracted directory
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# name. This is also the case for some (old) packages, such as libfloat.
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# Overcome this issue by symlink'ing the directory.
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if [ ! -d "${file}" -a "${libc_addon}" != "y" ]; then
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case "${ext}" in
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.tar.bz2) base=`tar tjf "${full_file}" |head -n 1 |cut -d / -f 1 || true`;;
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.tar.gz|.tgz) base=`tar tzf "${full_file}" |head -n 1 |cut -d / -f 1 || true`;;
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.tar) base=`tar tf "${full_file}" |head -n 1 |cut -d / -f 1 || true`;;
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esac
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CT_TestOrAbort "There was a problem when extracting \"${file}\"" -d "${base}" -o "${base}" != "${file}"
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ln -s "${base}" "${file}"
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fi
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# Kludge: outside this function, we wouldn't know if we had just extracted
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# a libc addon, or a plain package. Apply patches now.
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CT_DoLog EXTRA "Patching \"${file}\""
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# If libc addon, we're already in the correct place.
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[ -z "${libc_addon}" ] && cd "${file}"
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[ "${CUSTOM_PATCH_ONLY}" = "y" ] || official_patch_dir="${CT_TOP_DIR}/patches/${base_file}/${ver_file}"
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[ "${CT_CUSTOM_PATCH}" = "y" ] && custom_patch_dir="${CT_CUSTOM_PATCH_DIR}/${base_file}/${ver_file}"
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for patch_dir in "${official_patch_dir}" "${custom_patch_dir}"; do
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if [ -n "${patch_dir}" -a -d "${patch_dir}" ]; then
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for p in "${patch_dir}"/*.patch; do
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if [ -f "${p}" ]; then
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CT_DoLog DEBUG "Applying patch \"${p}\""
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patch -g0 -F1 -p1 -f <"${p}" |CT_DoLog DEBUG
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CT_TestAndAbort "Failed while applying patch file \"${p}\"" ${PIPESTATUS[0]} -ne 0
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fi
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done
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fi
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done
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CT_Popd
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}
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# Compute the target triplet from what is provided by the user
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# Usage: CT_DoBuildTargetTriplet
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# In fact this function takes the environment variables to build the target
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# triplet. It is needed both by the normal build sequence, as well as the
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# sample saving sequence.
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CT_DoBuildTargetTriplet() {
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case "${CT_ARCH_BE},${CT_ARCH_LE}" in
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y,) target_endian_eb=eb; target_endian_el=;;
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,y) target_endian_eb=; target_endian_el=el;;
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esac
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case "${CT_ARCH}" in
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arm) CT_TARGET="${CT_ARCH}${target_endian_eb}";;
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mips) CT_TARGET="${CT_ARCH}${target_endian_el}";;
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x86*) # Much love for this one :-(
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# Ultimately, we should use config.sub to output the correct
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# procesor name. Work for later...
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arch="${CT_ARCH_ARCH}"
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[ -z "${arch}" ] && arch="${CT_ARCH_TUNE}"
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case "${CT_ARCH}" in
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x86_64) CT_TARGET=x86_64;;
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*) case "${arch}" in
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"") CT_TARGET=i386;;
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i386|i486|i586|i686) CT_TARGET="${arch}";;
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winchip*) CT_TARGET=i486;;
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pentium|pentium-mmx|c3*) CT_TARGET=i586;;
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nocona|athlon*64|k8|athlon-fx|opteron) CT_TARGET=x86_64;;
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pentiumpro|pentium*|athlon*) CT_TARGET=i686;;
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*) CT_TARGET=i586;;
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esac;;
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esac;;
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esac
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case "${CT_TARGET_VENDOR}" in
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"") CT_TARGET="${CT_TARGET}-unknown";;
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*) CT_TARGET="${CT_TARGET}-${CT_TARGET_VENDOR}";;
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esac
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case "${CT_KERNEL}" in
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linux*) CT_TARGET="${CT_TARGET}-linux";;
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cygwin*) CT_TARGET="${CT_TARGET}-cygwin";;
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esac
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case "${CT_LIBC}" in
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glibc) CT_TARGET="${CT_TARGET}-gnu";;
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uClibc) CT_TARGET="${CT_TARGET}-uclibc";;
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esac
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case "${CT_ARCH_ABI}" in
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eabi) CT_TARGET="${CT_TARGET}eabi";;
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esac
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CT_TARGET="`${CT_TOP_DIR}/tools/config.sub ${CT_TARGET}`"
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}
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