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crosstool-ng/scripts/build/libc/uClibc.sh
Yann E. MORIN" 1185c9bf05 libc/uClibc: use endian string in tests 
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
2011-11-20 21:08:27 +01:00

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# This file declares functions to install the uClibc C library
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
# This is a constant because it does not change very often.
# We're in 2010, and are still using data from 7 years ago.
uclibc_locales_version=030818
uclibc_local_tarball="uClibc-locale-${uclibc_locales_version}"
# Download uClibc
do_libc_get() {
libc_src="http://www.uclibc.org/downloads
http://www.uclibc.org/downloads/snapshots
http://www.uclibc.org/downloads/old-releases"
# For uClibc, we have almost every thing: releases, and snapshots
# for the last month or so. We'll have to deal with svn revisions
# later...
CT_GetFile "uClibc-${CT_LIBC_VERSION}" ${libc_src}
# uClibc locales
if [ "${CT_LIBC_UCLIBC_LOCALES_PREGEN_DATA}" = "y" ]; then
CT_GetFile "${uclibc_local_tarball}" ${libc_src}
fi
return 0
}
# Extract uClibc
do_libc_extract() {
CT_Extract "uClibc-${CT_LIBC_VERSION}"
# Don't patch snapshots
if [ -z "${CT_LIBC_UCLIBC_V_snapshot}" \
-a -z "${CT_LIBC_UCLIBC_V_specific_date}" \
]; then
CT_Patch "uClibc" "${CT_LIBC_VERSION}"
fi
# uClibc locales
# Extracting pregen locales ourselves is kinda
# broken, so just link it in place...
if [ "${CT_LIBC_UCLIBC_LOCALES_PREGEN_DATA}" = "y" \
-a ! -f "${CT_SRC_DIR}/.${uclibc_local_tarball}.extracted" ]; then
CT_Pushd "${CT_SRC_DIR}/uClibc-${CT_LIBC_VERSION}/extra/locale"
CT_DoExecLog ALL ln -s "${CT_TARBALLS_DIR}/${uclibc_local_tarball}.tgz" .
CT_Popd
touch "${CT_SRC_DIR}/.${uclibc_local_tarball}.extracted"
fi
return 0
}
# Check that uClibc has been previously configured
do_libc_check_config() {
CT_DoStep INFO "Checking C library configuration"
CT_TestOrAbort "You did not provide a uClibc config file!" -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" -a -f "${CT_LIBC_UCLIBC_CONFIG_FILE}"
if grep -E '^KERNEL_SOURCE=' "${CT_LIBC_UCLIBC_CONFIG_FILE}" >/dev/null 2>&1; then
CT_DoLog WARN "Your uClibc version refers to the kernel _sources_, which is bad."
CT_DoLog WARN "I can't guarantee that our little hack will work. Please try to upgrade."
fi
CT_DoLog EXTRA "Munging uClibc configuration"
mungeuClibcConfig "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_CONFIG_DIR}/uClibc.config"
CT_EndStep
}
# Build and install headers and start files
do_libc_start_files() {
local install_rule
local cross
CT_DoStep INFO "Installing C library headers"
# Simply copy files until uClibc has the ability to build out-of-tree
CT_DoLog EXTRA "Copying sources to build dir"
CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/uClibc-${CT_LIBC_VERSION}" \
"${CT_BUILD_DIR}/build-libc-headers"
cd "${CT_BUILD_DIR}/build-libc-headers"
# Retrieve the config file
CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/uClibc.config" .config
# uClibc uses the CROSS environment variable as a prefix to the
# compiler tools to use. Setting it to the empty string forces
# use of the native build host tools, which we need at this
# stage, as we don't have target tools yet.
# BUT! With NPTL, we need a cross-compiler (and we have it)
if [ "${CT_THREADS}" = "nptl" ]; then
cross="${CT_TARGET}-"
fi
# Force the date of the pregen locale data, as the
# newer ones that are referenced are not available
CT_DoLog EXTRA "Applying configuration"
CT_DoYes "" |CT_DoExecLog ALL \
make CROSS="${cross}" \
PREFIX="${CT_SYSROOT_DIR}/" \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
oldconfig
CT_DoLog EXTRA "Building headers"
CT_DoExecLog ALL \
make ${CT_LIBC_UCLIBC_VERBOSITY} \
CROSS="${cross}" \
PREFIX="${CT_SYSROOT_DIR}/" \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
headers
if [ "${CT_LIBC_UCLIBC_0_9_30_or_later}" = "y" ]; then
install_rule=install_headers
else
install_rule=install_dev
fi
CT_DoLog EXTRA "Installing headers"
CT_DoExecLog ALL \
make ${CT_LIBC_UCLIBC_VERBOSITY} \
CROSS="${cross}" \
PREFIX="${CT_SYSROOT_DIR}/" \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
${install_rule}
if [ "${CT_THREADS}" = "nptl" ]; then
CT_DoLog EXTRA "Building start files"
CT_DoExecLog ALL \
make ${CT_LIBC_UCLIBC_PARALLEL:+${JOBSFLAGS}} \
CROSS="${cross}" \
PREFIX="${CT_SYSROOT_DIR}/" \
STRIPTOOL=true \
${CT_LIBC_UCLIBC_VERBOSITY} \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
lib/crt1.o lib/crti.o lib/crtn.o
# From: http://git.openembedded.org/cgit.cgi/openembedded/commit/?id=ad5668a7ac7e0436db92e55caaf3fdf782b6ba3b
# libm.so is needed for ppc, as libgcc is linked against libm.so
# No problem to create it for other archs.
CT_DoLog EXTRA "Building dummy shared libs"
CT_DoExecLog ALL "${cross}gcc" -nostdlib \
-nostartfiles \
-shared \
-x c /dev/null \
-o libdummy.so
CT_DoLog EXTRA "Installing start files"
CT_DoExecLog ALL install -m 0644 lib/crt1.o lib/crti.o lib/crtn.o \
"${CT_SYSROOT_DIR}/usr/lib"
CT_DoLog EXTRA "Installing dummy shared libs"
CT_DoExecLog ALL install -m 0755 libdummy.so "${CT_SYSROOT_DIR}/usr/lib/libc.so"
CT_DoExecLog ALL install -m 0755 libdummy.so "${CT_SYSROOT_DIR}/usr/lib/libm.so"
fi # CT_THREADS == nptl
CT_EndStep
}
# This function build and install the full uClibc
do_libc() {
CT_DoStep INFO "Installing C library"
# Simply copy files until uClibc has the ability to build out-of-tree
CT_DoLog EXTRA "Copying sources to build dir"
CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/uClibc-${CT_LIBC_VERSION}" \
"${CT_BUILD_DIR}/build-libc"
cd "${CT_BUILD_DIR}/build-libc"
# Retrieve the config file
CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/uClibc.config" .config
# uClibc uses the CROSS environment variable as a prefix to the compiler
# tools to use. The newly built tools should be in our path, so we need
# only give the correct name for them.
# Note about CFLAGS: In uClibc, CFLAGS are generated by Rules.mak,
# depending on the configuration of the library. That is, they are tailored
# to best fit the target. So it is useless and seems to be a bad thing to
# use LIBC_EXTRA_CFLAGS here.
CT_DoLog EXTRA "Applying configuration"
CT_DoYes "" |CT_DoExecLog CFG \
make CROSS=${CT_TARGET}- \
PREFIX="${CT_SYSROOT_DIR}/" \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
oldconfig
# We do _not_ want to strip anything for now, in case we specifically
# asked for a debug toolchain, thus the STRIPTOOL= assignment
# /Old/ versions can not build in //
CT_DoLog EXTRA "Building C library"
CT_DoExecLog ALL \
make -j1 \
CROSS=${CT_TARGET}- \
PREFIX="${CT_SYSROOT_DIR}/" \
STRIPTOOL=true \
${CT_LIBC_UCLIBC_VERBOSITY} \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
pregen
CT_DoExecLog ALL \
make ${CT_LIBC_UCLIBC_PARALLEL:+${JOBSFLAGS}} \
CROSS=${CT_TARGET}- \
PREFIX="${CT_SYSROOT_DIR}/" \
STRIPTOOL=true \
${CT_LIBC_UCLIBC_VERBOSITY} \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
all
# YEM-FIXME:
# - we want to install 'runtime' files, eg. lib*.{a,so*}, crti.o and
# such files, except the headers as they already are installed
# - "make install_dev" installs the headers, the crti.o... and the
# static libs, but not the dynamic libs
# - "make install_runtime" installs the dynamic libs only
# - "make install" calls install_runtime and install_dev
# - so we're left with re-installing the headers... Sigh...
#
# We do _not_ want to strip anything for now, in case we specifically
# asked for a debug toolchain, hence the STRIPTOOL= assignment
#
# Note: JOBSFLAGS is not usefull for installation.
#
CT_DoLog EXTRA "Installing C library"
CT_DoExecLog ALL \
make CROSS=${CT_TARGET}- \
PREFIX="${CT_SYSROOT_DIR}/" \
STRIPTOOL=true \
${CT_LIBC_UCLIBC_VERBOSITY} \
LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \
install
CT_EndStep
}
# This function is used to install those components needing the final C compiler
do_libc_finish() {
:
}
# Initialises the .config file to sensible values
# $1: original file
# $2: munged file
mungeuClibcConfig() {
src_config_file="$1"
dst_config_file="$2"
munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed"
# Start with a fresh file
rm -f "${munge_file}"
touch "${munge_file}"
# Do it all in a sub-shell, it's easier to redirect output
(
# Hack our target in the config file.
case "${CT_ARCH}:${CT_ARCH_BITNESS}" in
x86:32) arch=i386;;
x86:64) arch=x86_64;;
sh:32) arch="sh";;
sh:64) arch="sh64";;
blackfin:32) arch="bfin";;
*) arch="${CT_ARCH}";;
esac
# Also remove stripping: its the responsibility of the
# firmware builder to strip or not.
cat <<-ENDSED
s/^(TARGET_.*)=y$/# \\1 is not set/
s/^# TARGET_${arch} is not set/TARGET_${arch}=y/
s/^TARGET_ARCH=".*"/TARGET_ARCH="${arch}"/
s/.*(DOSTRIP).*/# \\1 is not set/
ENDSED
# Ah. We may one day need architecture-specific handler here...
case "${CT_ARCH}" in
arm)
# Hack the ARM {E,O}ABI into the config file
if [ "${CT_ARCH_ARM_EABI}" = "y" ]; then
cat <<-ENDSED
s/.*(CONFIG_ARM_OABI).*/# \\1 is not set/
s/.*(CONFIG_ARM_EABI).*/\\1=y/
ENDSED
else
cat <<-ENDSED
s/.*(CONFIG_ARM_OABI).*/\\1=y/
s/.*(CONFIG_ARM_EABI).*/# \\1 is not set/
ENDSED
fi
;;
mips)
case "${CT_ARCH_mips_ABI}" in
32)
cat <<-ENDSED
s/.*(CONFIG_MIPS_O32_ABI).*/\\1=y/
s/.*(CONFIG_MIPS_N32_ABI).*/# \\1 is not set/
s/.*(CONFIG_MIPS_N64_ABI).*/# \\1 is not set/
ENDSED
;;
# For n32 and n64, also force the ISA
# Not so sure this is pertinent, so it's
# commented out for now. It would take a
# (MIPS+uClibc) expert to either remove
# or re-enable the overrides.
n32)
cat <<-ENDSED
s/.*(CONFIG_MIPS_O32_ABI).*/# \\1 is not set/
s/.*(CONFIG_MIPS_N32_ABI).*/\\1=y/
s/.*(CONFIG_MIPS_N64_ABI).*/# \\1 is not set/
s/.*(CONFIG_MIPS_ISA_.*).*/# \\1 is not set/
s/.*(CONFIG_MIPS_ISA_3).*/\\1=y/
ENDSED
;;
64)
cat <<-ENDSED
s/.*(CONFIG_MIPS_O32_ABI).*/# \\1 is not set/
s/.*(CONFIG_MIPS_N32_ABI).*/# \\1 is not set/
s/.*(CONFIG_MIPS_N64_ABI).*/\\1=y/
s/.*(CONFIG_MIPS_ISA_.*).*/# \\1 is not set/
s/.*(CONFIG_MIPS_ISA_MIPS64).*/\\1=y/
ENDSED
;;
esac
;;
esac
# Accomodate for old and new uClibc versions, where the
# way to select between big/little endian has changed
case "${CT_ARCH_ENDIAN}" in
big)
cat <<-ENDSED
s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/
s/.*(ARCH_BIG_ENDIAN).*/\\1=y/
s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/# \\1 is not set/
s/.*(ARCH_WANTS_BIG_ENDIAN).*/\\1=y/
ENDSED
;;
little)
cat <<-ENDSED
s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/
s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/
s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/\\1=y/
s/.*(ARCH_WANTS_BIG_ENDIAN).*/# \\1 is not set/
ENDSED
;;
esac
# Accomodate for old and new uClibc versions, where the
# MMU settings has different config knobs
if [ "${CT_ARCH_USE_MMU}" = "y" ]; then
cat <<-ENDSED
s/.*(ARCH_HAS_MMU).*/\\1=y\nARCH_USE_MMU=y/
ENDSED
else
cat <<-ENDSED
s/.*(ARCH_HAS_MMU).*/# \\1 is not set/
/.*(ARCH_USE_MMU).*/d
ENDSED
fi
# Accomodate for old and new uClibc version, where the
# way to select between hard/soft float has changed
case "${CT_ARCH_FLOAT}" in
hard|softfp)
cat <<-ENDSED
s/^[^_]*(HAS_FPU).*/\\1=y/
s/.*(UCLIBC_HAS_FPU).*/\\1=y/
ENDSED
;;
soft)
cat <<-ENDSED
s/^[^_]*(HAS_FPU).*/\\# \\1 is not set/
s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/
ENDSED
;;
esac
# We always want ctor/dtor
cat <<-ENDSED
s/^# (UCLIBC_CTOR_DTOR) is not set/\\1=y/
ENDSED
# Change paths to work with crosstool-NG
# From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev
# " we just want the kernel headers, not the whole kernel source ...
# " so people may need to update their paths slightly
quoted_kernel_source=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/include/?$,,; s,/,\\/,g;')
quoted_headers_dir=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/,\\/,g;')
# CROSS_COMPILER_PREFIX is left as is, as the CROSS parameter is forced on the command line
# DEVEL_PREFIX is left as '/usr/' because it is post-pended to $PREFIX, wich is the correct value of ${PREFIX}/${TARGET}
# Some (old) versions of uClibc use KERNEL_SOURCE (which is _wrong_), and
# newer versions use KERNEL_HEADERS (which is right).
cat <<-ENDSED
s/^DEVEL_PREFIX=".*"/DEVEL_PREFIX="\\/usr\\/"/
s/^RUNTIME_PREFIX=".*"/RUNTIME_PREFIX="\\/"/
s/^SHARED_LIB_LOADER_PREFIX=.*/SHARED_LIB_LOADER_PREFIX="\\/lib\\/"/
s/^KERNEL_SOURCE=".*"/KERNEL_SOURCE="${quoted_kernel_source}"/
s/^KERNEL_HEADERS=".*"/KERNEL_HEADERS="${quoted_headers_dir}"/
s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/
ENDSED
if [ "${CT_USE_PIPES}" = "y" ]; then
if grep UCLIBC_EXTRA_CFLAGS extra/Configs/Config.in >/dev/null 2>&1; then
# Good, there is special provision for such things as -pipe!
cat <<-ENDSED
s/^(UCLIBC_EXTRA_CFLAGS=".*)"$/\\1 -pipe"/
ENDSED
else
# Hack our -pipe into WARNINGS, which will be internally incorporated to
# CFLAGS. This a dirty hack, but yet needed
cat <<-ENDSED
s/^(WARNINGS=".*)"$/\\1 -pipe"/
ENDSED
fi
fi
# Locales support
# Note that the two PREGEN_LOCALE and the XLOCALE lines may be missing
# entirely if LOCALE is not set. If LOCALE was already set, we'll
# assume the user has already made all the appropriate generation
# arrangements. Note that having the uClibc Makefile download the
# pregenerated locales is not compatible with crosstool; besides,
# crosstool downloads them as part of getandpatch.sh.
case "${CT_LIBC_UCLIBC_LOCALES}:${CT_LIBC_UCLIBC_LOCALES_PREGEN_DATA}" in
:*)
;;
y:)
cat <<-ENDSED
s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\
# UCLIBC_PREGENERATED_LOCALE_DATA is not set\\
# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\
# UCLIBC_HAS_XLOCALE is not set/
ENDSED
;;
y:y)
cat <<-ENDSED
s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\
UCLIBC_PREGENERATED_LOCALE_DATA=y\\
# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\
# UCLIBC_HAS_XLOCALE is not set/
ENDSED
;;
esac
# WCHAR support
if [ "${CT_LIBC_UCLIBC_WCHAR}" = "y" ] ; then
cat <<-ENDSED
s/^.*UCLIBC_HAS_WCHAR.*/UCLIBC_HAS_WCHAR=y/
ENDSED
else
cat <<-ENDSED
s/^.*UCLIBC_HAS_WCHAR.*/UCLIBC_HAS_WCHAR=n/
ENDSED
fi
# Force on options needed for C++ if we'll be making a C++ compiler.
# I'm not sure locales are a requirement for doing C++... Are they?
if [ "${CT_CC_LANG_CXX}" = "y" ]; then
cat <<-ENDSED
s/^# DO_C99_MATH is not set/DO_C99_MATH=y/
s/^# UCLIBC_HAS_GNU_GETOPT is not set/UCLIBC_HAS_GNU_GETOPT=y/
ENDSED
fi
# Push the threading model
# Note: we take into account all of the .28, .29, .30 and .31
# versions, here. Even snapshots with NPTL.
case "${CT_THREADS}:${CT_LIBC_UCLIBC_LNXTHRD}" in
none:)
cat <<-ENDSED
s/^UCLIBC_HAS_THREADS=y/# UCLIBC_HAS_THREADS is not set/
s/^LINUXTHREADS_OLD=y/# LINUXTHREADS_OLD is not set/
s/^LINUXTHREADS_NEW=y/# LINUXTHREADS_NEW is not set/
s/^UCLIBC_HAS_THREADS_NATIVE=y/# UCLIBC_HAS_THREADS_NATIVE is not set/
ENDSED
;;
linuxthreads:old)
cat <<-ENDSED
s/^# UCLIBC_HAS_THREADS is not set/UCLIBC_HAS_THREADS=y/
s/^# LINUXTHREADS_OLD is not set/LINUXTHREADS_OLD=y/
s/^LINUXTHREADS_NEW=y/# LINUXTHREADS_NEW is not set/
s/^UCLIBC_HAS_THREADS_NATIVE=y/# UCLIBC_HAS_THREADS_NATIVE is not set/
ENDSED
;;
linuxthreads:new)
cat <<-ENDSED
s/^# UCLIBC_HAS_THREADS is not set/UCLIBC_HAS_THREADS=y/
s/^LINUXTHREADS_OLD=y/# LINUXTHREADS_OLD is not set/
s/^# LINUXTHREADS_NEW is not set/LINUXTHREADS_NEW=y/
s/^UCLIBC_HAS_THREADS_NATIVE=y/# UCLIBC_HAS_THREADS_NATIVE is not set/
ENDSED
;;
nptl:)
cat <<-ENDSED
s/^HAS_NO_THREADS=y/# HAS_NO_THREADS is not set/
s/^UCLIBC_HAS_THREADS=y/# UCLIBC_HAS_THREADS is not set/
s/^LINUXTHREADS_OLD=y/# LINUXTHREADS_OLD is not set/
s/^LINUXTHREADS_NEW=y/# LINUXTHREADS_NEW is not set/
s/^# UCLIBC_HAS_THREADS_NATIVE is not set/UCLIBC_HAS_THREADS_NATIVE=y/
ENDSED
;;
*)
CT_Abort "Incorrect thread settings: CT_THREADS='${CT_THREAD}' CT_LIBC_UCLIBC_LNXTHRD='${CT_LIBC_UCLIBC_LNXTHRD}'"
;;
esac
# Always build the libpthread_db
cat <<-ENDSED
s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/
ENDSED
# Force on debug options if asked for
case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in
0)
cat <<-ENDSED
s/^DODEBUG=y/# DODEBUG is not set/
s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
s/^DOASSERTS=y/# DOASSERTS is not set/
s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
ENDSED
;;
1)
cat <<-ENDSED
s/^# DODEBUG is not set.*/DODEBUG=y/
s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
s/^DOASSERTS=y/# DOASSERTS is not set/
s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
ENDSED
;;
2)
cat <<-ENDSED
s/^# DODEBUG is not set.*/DODEBUG=y/
s/^# DODEBUG_PT is not set.*/DODEBUG_PT=y/
s/^# DOASSERTS is not set.*/DOASSERTS=y/
s/^# SUPPORT_LD_DEBUG is not set.*/SUPPORT_LD_DEBUG=y/
s/^# SUPPORT_LD_DEBUG_EARLY is not set.*/SUPPORT_LD_DEBUG_EARLY=y/
s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/
ENDSED
;;
esac
# And now, this is the end
) >>"${munge_file}"
sed -r -f "${munge_file}" "${src_config_file}" >"${dst_config_file}"
}
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