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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [config/] [override.m4] - Diff between revs 816 and 829

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Rev 816 Rev 829
dnl Fix Autoconf-2.59 bugs: by overriding broken internal
dnl Fix Autoconf-2.59 bugs: by overriding broken internal
dnl Autoconf macros with backports of the 2.60+ fix.
dnl Autoconf macros with backports of the 2.60+ fix.
dnl - AC_CONFIG_SUBDIRS whitespace mangling,
dnl - AC_CONFIG_SUBDIRS whitespace mangling,
dnl - more lenient precious variable checks
dnl - more lenient precious variable checks
dnl - better configure error message
dnl - better configure error message
dnl - reliance on non-Posix m4wrap (M4 1.6 or newer implement FIFO)
dnl - reliance on non-Posix m4wrap (M4 1.6 or newer implement FIFO)
dnl
dnl
dnl The override bits of this file should be a no-op for the newest
dnl The override bits of this file should be a no-op for the newest
dnl Autoconf version, which means they can be removed once the complete
dnl Autoconf version, which means they can be removed once the complete
dnl tree has moved to a new enough Autoconf version.
dnl tree has moved to a new enough Autoconf version.
dnl
dnl
dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired
dnl The _GCC_AUTOCONF_VERSION_TEST ensures that exactly the desired
dnl Autoconf version is used.  It should be kept for consistency.
dnl Autoconf version is used.  It should be kept for consistency.
 
 
dnl Provide m4_copy_force and m4_rename_force for old Autoconf versions.
dnl Provide m4_copy_force and m4_rename_force for old Autoconf versions.
 
 
m4_ifndef([m4_copy_force],
m4_ifndef([m4_copy_force],
[m4_define([m4_copy_force],
[m4_define([m4_copy_force],
[m4_ifdef([$2], [m4_undefine([$2])])m4_copy($@)])])
[m4_ifdef([$2], [m4_undefine([$2])])m4_copy($@)])])
 
 
m4_ifndef([m4_rename_force],
m4_ifndef([m4_rename_force],
[m4_define([m4_rename_force],
[m4_define([m4_rename_force],
[m4_ifdef([$2], [m4_undefine([$2])])m4_rename($@)])])
[m4_ifdef([$2], [m4_undefine([$2])])m4_rename($@)])])
 
 
dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro.
dnl m4_PACKAGE_VERSION is an undocumented Autoconf macro.
dnl We use it because this fix is intended for 2.59 only.
dnl We use it because this fix is intended for 2.59 only.
dnl A feature test for the broken AC_CONFIG_SUBDIRS instead
dnl A feature test for the broken AC_CONFIG_SUBDIRS instead
dnl would be better but is tricky.
dnl would be better but is tricky.
dnl
dnl
dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13.
dnl Use ifdef/ifelse over m4_ifdef/m4_ifelse to be clean for 2.13.
dnl Redefine AC_CONFIG_SUBDIRS so aclocal pulls in this file
dnl Redefine AC_CONFIG_SUBDIRS so aclocal pulls in this file
dnl when needed.
dnl when needed.
 
 
ifdef([m4_PACKAGE_VERSION],
ifdef([m4_PACKAGE_VERSION],
[dnl AC_DEFUN a commonly used macro so this file is picked up.
[dnl AC_DEFUN a commonly used macro so this file is picked up.
m4_copy([AC_PREREQ], [_AC_PREREQ])
m4_copy([AC_PREREQ], [_AC_PREREQ])
AC_DEFUN([AC_PREREQ], [frob])
AC_DEFUN([AC_PREREQ], [frob])
m4_copy_force([_AC_PREREQ], [AC_PREREQ])
m4_copy_force([_AC_PREREQ], [AC_PREREQ])
 
 
 
 
dnl Ensure exactly this Autoconf version is used
dnl Ensure exactly this Autoconf version is used
m4_ifndef([_GCC_AUTOCONF_VERSION],
m4_ifndef([_GCC_AUTOCONF_VERSION],
  [m4_define([_GCC_AUTOCONF_VERSION], [2.64])])
  [m4_define([_GCC_AUTOCONF_VERSION], [2.64])])
 
 
dnl Test for the exact version when AC_INIT is expanded.
dnl Test for the exact version when AC_INIT is expanded.
dnl This allows to update the tree in steps (for testing)
dnl This allows to update the tree in steps (for testing)
dnl by putting
dnl by putting
dnl   m4_define([_GCC_AUTOCONF_VERSION], [X.Y])
dnl   m4_define([_GCC_AUTOCONF_VERSION], [X.Y])
dnl in configure.ac before AC_INIT,
dnl in configure.ac before AC_INIT,
dnl without rewriting this file.
dnl without rewriting this file.
dnl Or for updating the whole tree at once with the definition above.
dnl Or for updating the whole tree at once with the definition above.
AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK],
AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK],
[m4_if(m4_defn([_GCC_AUTOCONF_VERSION]),
[m4_if(m4_defn([_GCC_AUTOCONF_VERSION]),
  m4_defn([m4_PACKAGE_VERSION]), [],
  m4_defn([m4_PACKAGE_VERSION]), [],
  [m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])])
  [m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])])
])
])
m4_define([AC_INIT], m4_defn([AC_INIT])[
m4_define([AC_INIT], m4_defn([AC_INIT])[
_GCC_AUTOCONF_VERSION_CHECK
_GCC_AUTOCONF_VERSION_CHECK
])
])
 
 
 
 
dnl Turn AC_DISABLE_OPTION_CHECKING into a no-op if not defined.
dnl Turn AC_DISABLE_OPTION_CHECKING into a no-op if not defined.
m4_ifndef([AC_DISABLE_OPTION_CHECKING],
m4_ifndef([AC_DISABLE_OPTION_CHECKING],
  [m4_define([AC_DISABLE_OPTION_CHECKING])])
  [m4_define([AC_DISABLE_OPTION_CHECKING])])
 
 
 
 
dnl Fix 2.64 cross compile detection for AVR and RTEMS
dnl Fix 2.64 cross compile detection for AVR and RTEMS
dnl by not trying to compile fopen.
dnl by not trying to compile fopen.
m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],
m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],
  [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77],
  [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77],
     [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])])
     [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])])
 
 
 
 
m4_version_prereq([2.60],, [
m4_version_prereq([2.60],, [
dnl We use $ac_pwd in some of the overrides below; ensure its definition
dnl We use $ac_pwd in some of the overrides below; ensure its definition
m4_divert_push([PARSE_ARGS])dnl
m4_divert_push([PARSE_ARGS])dnl
ac_pwd=`pwd`
ac_pwd=`pwd`
m4_divert_pop([PARSE_ARGS])dnl
m4_divert_pop([PARSE_ARGS])dnl
])
])
 
 
 
 
m4_version_prereq([2.60],, [
m4_version_prereq([2.60],, [
 
 
# _AC_OUTPUT_SUBDIRS
# _AC_OUTPUT_SUBDIRS
# ------------------
# ------------------
# This is a subroutine of AC_OUTPUT, but it does not go into
# This is a subroutine of AC_OUTPUT, but it does not go into
# config.status, rather, it is called after running config.status.
# config.status, rather, it is called after running config.status.
m4_define([_AC_OUTPUT_SUBDIRS],
m4_define([_AC_OUTPUT_SUBDIRS],
[
[
#
#
# CONFIG_SUBDIRS section, as fixed in confsubdir.m4.
# CONFIG_SUBDIRS section, as fixed in confsubdir.m4.
#
#
if test "$no_recursion" != yes; then
if test "$no_recursion" != yes; then
 
 
  # Remove --cache-file and --srcdir arguments so they do not pile up.
  # Remove --cache-file and --srcdir arguments so they do not pile up.
  ac_sub_configure_args=
  ac_sub_configure_args=
  ac_prev=
  ac_prev=
  eval "set x $ac_configure_args"
  eval "set x $ac_configure_args"
  shift
  shift
  for ac_arg
  for ac_arg
  do
  do
    if test -n "$ac_prev"; then
    if test -n "$ac_prev"; then
      ac_prev=
      ac_prev=
      continue
      continue
    fi
    fi
    case $ac_arg in
    case $ac_arg in
    -cache-file | --cache-file | --cache-fil | --cache-fi \
    -cache-file | --cache-file | --cache-fil | --cache-fi \
    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
      ac_prev=cache_file ;;
      ac_prev=cache_file ;;
    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
    | --c=*)
    | --c=*)
      ;;
      ;;
    --config-cache | -C)
    --config-cache | -C)
      ;;
      ;;
    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
      ac_prev=srcdir ;;
      ac_prev=srcdir ;;
    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
      ;;
      ;;
    -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
      ac_prev=prefix ;;
      ac_prev=prefix ;;
    -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
      ;;
      ;;
    *)
    *)
      case $ac_arg in
      case $ac_arg in
      *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
      *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
      esac
      esac
      ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
      ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
    esac
    esac
  done
  done
 
 
  # Always prepend --prefix to ensure using the same prefix
  # Always prepend --prefix to ensure using the same prefix
  # in subdir configurations.
  # in subdir configurations.
  ac_arg="--prefix=$prefix"
  ac_arg="--prefix=$prefix"
  case $ac_arg in
  case $ac_arg in
  *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
  *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
  esac
  esac
  ac_sub_configure_args="$ac_arg $ac_sub_configure_args"
  ac_sub_configure_args="$ac_arg $ac_sub_configure_args"
 
 
  ac_popdir=`pwd`
  ac_popdir=`pwd`
  for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
  for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
 
 
    # Do not complain, so a configure script can configure whichever
    # Do not complain, so a configure script can configure whichever
    # parts of a large source tree are present.
    # parts of a large source tree are present.
    test -d "$srcdir/$ac_dir" || continue
    test -d "$srcdir/$ac_dir" || continue
 
 
    AC_MSG_NOTICE([configuring in $ac_dir])
    AC_MSG_NOTICE([configuring in $ac_dir])
    AS_MKDIR_P(["$ac_dir"])
    AS_MKDIR_P(["$ac_dir"])
    _AC_SRCPATHS(["$ac_dir"])
    _AC_SRCPATHS(["$ac_dir"])
 
 
    cd "$ac_dir"
    cd "$ac_dir"
 
 
    # Check for guested configure; otherwise get Cygnus style configure.
    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f "$ac_srcdir/configure.gnu"; then
    if test -f "$ac_srcdir/configure.gnu"; then
      ac_sub_configure=$ac_srcdir/configure.gnu
      ac_sub_configure=$ac_srcdir/configure.gnu
    elif test -f "$ac_srcdir/configure"; then
    elif test -f "$ac_srcdir/configure"; then
      ac_sub_configure=$ac_srcdir/configure
      ac_sub_configure=$ac_srcdir/configure
    elif test -f "$ac_srcdir/configure.in"; then
    elif test -f "$ac_srcdir/configure.in"; then
      # This should be Cygnus configure.
      # This should be Cygnus configure.
      ac_sub_configure=$ac_aux_dir/configure
      ac_sub_configure=$ac_aux_dir/configure
    else
    else
      AC_MSG_WARN([no configuration information is in $ac_dir])
      AC_MSG_WARN([no configuration information is in $ac_dir])
      ac_sub_configure=
      ac_sub_configure=
    fi
    fi
 
 
    # The recursion is here.
    # The recursion is here.
    if test -n "$ac_sub_configure"; then
    if test -n "$ac_sub_configure"; then
      # Make the cache file name correct relative to the subdirectory.
      # Make the cache file name correct relative to the subdirectory.
      case $cache_file in
      case $cache_file in
      [[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
      [[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
      *) # Relative path.
      *) # Relative path.
        ac_sub_cache_file=$ac_top_builddir$cache_file ;;
        ac_sub_cache_file=$ac_top_builddir$cache_file ;;
      esac
      esac
 
 
      AC_MSG_NOTICE([running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
      AC_MSG_NOTICE([running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
      # The eval makes quoting arguments work.
      # The eval makes quoting arguments work.
      eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
      eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
           --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
           --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
        AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir])
        AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir])
    fi
    fi
 
 
    cd "$ac_popdir"
    cd "$ac_popdir"
  done
  done
fi
fi
])# _AC_OUTPUT_SUBDIRS
])# _AC_OUTPUT_SUBDIRS
])
])
 
 
m4_version_prereq([2.63],, [
m4_version_prereq([2.63],, [
 
 
# _AC_ARG_VAR_VALIDATE
# _AC_ARG_VAR_VALIDATE
# --------------------
# --------------------
# The code is the same as autoconf 2.59, but with a more lenient check
# The code is the same as autoconf 2.59, but with a more lenient check
# on precious variables and an output of pwd that have been added in
# on precious variables and an output of pwd that have been added in
# autoconf 2.62.
# autoconf 2.62.
m4_define([_AC_ARG_VAR_VALIDATE],
m4_define([_AC_ARG_VAR_VALIDATE],
[m4_divert_text([INIT_PREPARE],
[m4_divert_text([INIT_PREPARE],
[# Check that the precious variables saved in the cache have kept the same
[# Check that the precious variables saved in the cache have kept the same
# value.
# value.
ac_cache_corrupted=false
ac_cache_corrupted=false
for ac_var in `(set) 2>&1 |
for ac_var in `(set) 2>&1 |
               sed -n 's/^ac_env_\([[a-zA-Z_0-9]]*\)_set=.*/\1/p'`; do
               sed -n 's/^ac_env_\([[a-zA-Z_0-9]]*\)_set=.*/\1/p'`; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
  eval ac_old_val="\$ac_cv_env_${ac_var}_value"
  eval ac_new_val="\$ac_env_${ac_var}_value"
  eval ac_new_val="\$ac_env_${ac_var}_value"
  case $ac_old_set,$ac_new_set in
  case $ac_old_set,$ac_new_set in
    set,)
    set,)
      AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
      AS_MESSAGE([error: `$ac_var' was set to `$ac_old_val' in the previous run], 2)
      ac_cache_corrupted=: ;;
      ac_cache_corrupted=: ;;
    ,set)
    ,set)
      AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
      AS_MESSAGE([error: `$ac_var' was not set in the previous run], 2)
      ac_cache_corrupted=: ;;
      ac_cache_corrupted=: ;;
    ,);;
    ,);;
    *)
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
      if test "x$ac_old_val" != "x$ac_new_val"; then
        # differences in whitespace do not lead to failure.
        # differences in whitespace do not lead to failure.
        ac_old_val_w=`echo x $ac_old_val`
        ac_old_val_w=`echo x $ac_old_val`
        ac_new_val_w=`echo x $ac_new_val`
        ac_new_val_w=`echo x $ac_new_val`
        if test "$ac_old_val_w" != "$ac_new_val_w"; then
        if test "$ac_old_val_w" != "$ac_new_val_w"; then
          AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
          AS_MESSAGE([error: `$ac_var' has changed since the previous run:], 2)
          ac_cache_corrupted=:
          ac_cache_corrupted=:
        else
        else
          AS_MESSAGE([warning: ignoring whitespace changes in `$ac_var' since the previous run:], 2)
          AS_MESSAGE([warning: ignoring whitespace changes in `$ac_var' since the previous run:], 2)
          eval $ac_var=\$ac_old_val
          eval $ac_var=\$ac_old_val
        fi
        fi
        AS_MESSAGE([  former value:  `$ac_old_val'], 2)
        AS_MESSAGE([  former value:  `$ac_old_val'], 2)
        AS_MESSAGE([  current value: `$ac_new_val'], 2)
        AS_MESSAGE([  current value: `$ac_new_val'], 2)
      fi;;
      fi;;
  esac
  esac
  # Pass precious variables to config.status.
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    case $ac_new_val in
dnl If you change this globbing pattern, test it on an old shell --
dnl If you change this globbing pattern, test it on an old shell --
dnl it's sensitive.  Putting any kind of quote in it causes syntax errors.
dnl it's sensitive.  Putting any kind of quote in it causes syntax errors.
[    *" "*|*"   "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)]
[    *" "*|*"   "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)]
      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
      ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    esac
    case " $ac_configure_args " in
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
    esac
    esac
  fi
  fi
done
done
if $ac_cache_corrupted; then
if $ac_cache_corrupted; then
  AS_MESSAGE([error: in `$ac_pwd':], 2)
  AS_MESSAGE([error: in `$ac_pwd':], 2)
  AS_MESSAGE([error: changes in the environment can compromise the build], 2)
  AS_MESSAGE([error: changes in the environment can compromise the build], 2)
  AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
  AS_ERROR([run `make distclean' and/or `rm $cache_file' and start over])
fi])dnl
fi])dnl
])# _AC_ARG_VAR_VALIDATE
])# _AC_ARG_VAR_VALIDATE
])
])
 
 
m4_version_prereq([2.63],, [
m4_version_prereq([2.63],, [
 
 
# AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
# AC_MSG_FAILURE(ERROR, [EXIT-STATUS = 1])
# ----------------------------------------
# ----------------------------------------
# This is the same code as in 2.59 and 2.61, except it also outputs pwd.
# This is the same code as in 2.59 and 2.61, except it also outputs pwd.
m4_define([AC_MSG_FAILURE],
m4_define([AC_MSG_FAILURE],
[{ AS_MESSAGE([error: in `$ac_pwd':], 2)
[{ AS_MESSAGE([error: in `$ac_pwd':], 2)
AC_MSG_ERROR([$1
AC_MSG_ERROR([$1
See `config.log' for more details.], [$2]); }])
See `config.log' for more details.], [$2]); }])
])
])
])
])
 
 
m4_version_prereq([2.60],, [
m4_version_prereq([2.60],, [
dnl M4 1.6 and newer implement m4wrap using FIFO semantics, as required
dnl M4 1.6 and newer implement m4wrap using FIFO semantics, as required
dnl by Posix; earlier versions used LIFO semantics.  Unfortunately,
dnl by Posix; earlier versions used LIFO semantics.  Unfortunately,
dnl Autoconf versions before 2.60 require those LIFO semantics, so
dnl Autoconf versions before 2.60 require those LIFO semantics, so
dnl make sure to give it to them.
dnl make sure to give it to them.
m4_define([m4_wrap], [m4_ifdef([_$0_text],
m4_define([m4_wrap], [m4_ifdef([_$0_text],
  [m4_define([_$0_text], [$1]m4_defn([_$0_text]))],
  [m4_define([_$0_text], [$1]m4_defn([_$0_text]))],
  [m4_define([_$0_text], [$1])m4_builtin([m4wrap],
  [m4_define([_$0_text], [$1])m4_builtin([m4wrap],
    [m4_default(m4_defn([_$0_text])m4_undefine([_$0_text]))])])])
    [m4_default(m4_defn([_$0_text])m4_undefine([_$0_text]))])])])
])
])
 
 

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