general.m4

autoconf是一个产生可以自动配置源代码包

	at_save_IFS=$IFS
	IFS=,
	set X $at_optarg
	shift
	IFS=$at_save_IFS
	for at_keyword
	do
	  at_invert=
	  case $at_keyword in
	  '!'*)
	    at_invert="-v"
	    at_keyword=`expr "X$at_keyword" : 'X!\(.*\)'`
	    ;;
	  esac
	  # It is on purpose that we match the test group titles too.
	  at_groups_selected=`echo "$at_groups_selected" |
	      grep -i $at_invert ["^[1-9][^;]*;.*[; ]$at_keyword[ ;]"]`
	done
	at_groups_selected=`echo "$at_groups_selected" | sed 's/;.*//'`
	# Smash the newlines.
	at_groups="$at_groups`echo $at_groups_selected` "
	;;
m4_divert_pop([PARSE_ARGS])dnl
dnl Process *=* last to allow for user specified --option=* type arguments.
m4_divert_push([PARSE_ARGS_END])dnl

    *=*)
	at_envvar=`expr "x$at_option" : 'x\([[^=]]*\)='`
	# Reject names that are not valid shell variable names.
	expr "x$at_envvar" : "[.*[^_$as_cr_alnum]]" >/dev/null &&
	  AS_ERROR([invalid variable name: $at_envvar])
	at_value=`echo "$at_optarg" | sed "s/'/'\\\\\\\\''/g"`
	eval "$at_envvar='$at_value'"
	export $at_envvar
	# Propagate to debug scripts.
	at_debug_args="$at_debug_args $at_envvar='$at_value'"
	;;

     *) echo "$as_me: invalid option: $at_option" >&2
	echo "Try \`$[0] --help' for more information." >&2
	exit 1
	;;
  esac
done

# Selected test groups.
if test -z "$at_groups"; then
  at_groups=$at_groups_all
else
  # Sort the tests, removing duplicates:
  at_groups=`echo $at_groups | tr ' ' "$as_nl" | sort -nu`
  # and add banners.  (Passing at_groups_all is tricky--see the comment
  # starting with "Passing at_groups is tricky.")
  at_groups=`echo "$at_groups$as_nl $at_groups_all" |
    awk ['BEGIN { FS = "@" } # Effectively switch off field splitting.
	/^$/ { next }  # Ignore the empty line.
	!/ / { groups++; selected[$ 0] = 1; next }
	# The last line, containing at_groups_all.
	{
		n = split($ 0, a, " ")
		# If there are several tests, select their banners:
		if (groups > 1) {
			for (i = 1; i <= n; i++) {
				if (a[i] ~ /^banner-/)
					banner = a[i]
				else if (banner != "" && selected[a[i]] == 1)
					selected[banner] = 1
			}
		}
		for (i = 1; i <= n; i++)
			if (selected[a[i]] == 1)
				list = list " " a[i]
		print list
	}']`
fi
m4_divert_pop([PARSE_ARGS_END])dnl
m4_divert_push([HELP])dnl

# Help message.
if $at_help_p; then
  cat <<_ATEOF
Usage: $[0] [[OPTION]... [VARIABLE=VALUE]... [TESTS]]

Run all the tests, or the selected TESTS, given by numeric ranges, and
save a detailed log file.  Upon failure, create debugging scripts.

You should not change environment variables unless explicitly passed
as command line arguments.  Set \`AUTOTEST_PATH' to select the executables
to exercise.  Each relative directory is expanded as build and source
directories relatively to the top level of this distribution.  E.g.,

  $ $[0] AUTOTEST_PATH=bin

possibly amounts into

  PATH=/tmp/foo-1.0/bin:/src/foo-1.0/bin:\$PATH
_ATEOF
m4_divert_pop([HELP])dnl
m4_divert_push([HELP_MODES])dnl
cat <<_ATEOF

Operation modes:
  -h, --help     print the help message, then exit
  -V, --version  print version number, then exit
  -c, --clean    remove all the files this test suite might create and exit
  -l, --list     describes all the tests, or the selected TESTS
_ATEOF
m4_divert_pop([HELP_MODES])dnl
m4_divert_push([HELP_TUNING])dnl
cat <<_ATEOF

Execution tuning:
  -k, --keywords=KEYWORDS
	         select the tests matching all the comma-separated KEYWORDS
	         multiple \`-k' accumulate; prefixed \`!' negates a KEYWORD
  -e, --errexit  abort as soon as a test fails; implies --debug
  -v, --verbose  force more detailed output
	         default for debugging scripts
  -d, --debug    inhibit clean up and top-level logging
	         default for debugging scripts
  -x, --trace    enable tests shell tracing
_ATEOF
m4_divert_pop([HELP_TUNING])dnl
m4_divert_push([HELP_END])dnl
cat <<_ATEOF

Report bugs to <AT_PACKAGE_BUGREPORT>.
_ATEOF
  exit 0
fi

# List of tests.
if $at_list_p; then
  cat <<_ATEOF
AT_TESTSUITE_NAME test groups:

 NUM: FILE-NAME:LINE     TEST-GROUP-NAME
      KEYWORDS

_ATEOF
  # Passing at_groups is tricky.  We cannot use it to form a literal string
  # or regexp because of the limitation of AIX awk.  And Solaris' awk
  # doesn't grok more than 99 fields in a record, so we have to use `split'.
  echo "$at_groups$as_nl$at_help_all" |
    awk 'BEGIN { FS = ";" }
	 NR == 1 {
	   for (n = split($ 0, a, " "); n; n--) selected[[a[n]]] = 1
	   next
	 }
	 {
	   if (selected[[$ 1]]) {
	     printf " %3d: %-18s %s\n", $ 1, $ 2, $ 3
	     if ($ 4) printf "      %s\n", $ 4
	   }
	 }'
  exit 0
fi
m4_divert_pop([HELP_END])dnl
m4_divert_push([VERSION])dnl
if $at_version_p; then
  echo "$as_me (AT_PACKAGE_STRING)"
  cat <<\_ACEOF
m4_divert_pop([VERSION])dnl
m4_divert_push([VERSION_END])dnl
_ACEOF
  exit 0
fi
m4_divert_pop([VERSION_END])dnl
m4_divert_push([PREPARE_TESTS])dnl

# Don't take risks: use only absolute directories in PATH.
#
# For stand-alone test suites, AUTOTEST_PATH is relative to `.'.
#
# For embedded test suites, AUTOTEST_PATH is relative to the top level
# of the package.  Then expand it into build/src parts, since users
# may create executables in both places.
AUTOTEST_PATH=`echo $AUTOTEST_PATH | sed "s&:&$PATH_SEPARATOR&g"`
at_path=
_AS_PATH_WALK([$AUTOTEST_PATH $PATH],
[test -n "$at_path" && at_path=$at_path$PATH_SEPARATOR
case $as_dir in
  [[\\/]]* | ?:[[\\/]]* )
    at_path=$at_path$as_dir
    ;;
  * )
    if test -z "$at_top_build_prefix"; then
      # Stand-alone test suite.
      at_path=$at_path$as_dir
    else
      # Embedded test suite.
      at_path=$at_path$at_top_build_prefix$as_dir$PATH_SEPARATOR
      at_path=$at_path$at_top_srcdir/$as_dir
    fi
    ;;
esac])

# Now build and simplify PATH.
#
# There might be directories that don't exist, but don't redirect
# builtins' (eg., cd) stderr directly: Ultrix's sh hates that.
PATH=
_AS_PATH_WALK([$at_path],
[as_dir=`(cd "$as_dir" && pwd) 2>/dev/null`
test -d "$as_dir" || continue
case $PATH in
	          $as_dir                 | \
	          $as_dir$PATH_SEPARATOR* | \
  *$PATH_SEPARATOR$as_dir                 | \
  *$PATH_SEPARATOR$as_dir$PATH_SEPARATOR* ) ;;

  '') PATH=$as_dir ;;
   *) PATH=$PATH$PATH_SEPARATOR$as_dir ;;
esac])
export PATH

# Setting up the FDs.
# 5 is the log file.  Not to be overwritten if `-d'.
m4_define([AS_MESSAGE_LOG_FD], [5])
if $at_debug_p; then
  at_suite_log=/dev/null
else
  : >"$at_suite_log"
fi
exec AS_MESSAGE_LOG_FD>>"$at_suite_log"

# Banners and logs.
AS_BOX(m4_defn([AT_TESTSUITE_NAME])[.])
{
  AS_BOX(m4_defn([AT_TESTSUITE_NAME])[.])
  echo

  echo "$as_me: command line was:"
  echo "  $ $[0] $at_cli_args"
  echo

  # Try to find a few ChangeLogs in case it might help determining the
  # exact version.  Use the relative dir: if the top dir is a symlink,
  # find will not follow it (and options to follow the links are not
  # portable), which would result in no output here.
  if test -n "$at_top_srcdir"; then
    AS_BOX([ChangeLogs.])
    echo
    for at_file in `find "$at_top_srcdir" -name ChangeLog -print`
    do
      echo "$as_me: $at_file:"
      sed 's/^/| /;10q' $at_file
      echo
    done

    AS_UNAME
    echo
  fi

  # Contents of the config files.
  for at_file in atconfig atlocal
  do
    test -r $at_file || continue
    echo "$as_me: $at_file:"
    sed 's/^/| /' $at_file
    echo
  done

  AS_BOX([Tested programs.])
  echo
} >&AS_MESSAGE_LOG_FD

# Report what programs are being tested.
for at_program in : $at_tested
do
  test "$at_program" = : && continue
  _AS_PATH_WALK([$PATH], [test -f "$as_dir/$at_program" && break])
  if test -f "$as_dir/$at_program"; then
    {
      echo "$at_srcdir/AT_LINE: $as_dir/$at_program --version"
      "$as_dir/$at_program" --version
      echo
    } >&AS_MESSAGE_LOG_FD 2>&1
  else
    AS_ERROR([cannot find $at_program])
  fi
done

{
  AS_BOX([Running the tests.])
} >&AS_MESSAGE_LOG_FD

at_start_date=`date`
at_start_time=`date +%s 2>/dev/null`
echo "$as_me: starting at: $at_start_date" >&AS_MESSAGE_LOG_FD
at_xpass_list=
at_xfail_list=
at_pass_list=
at_fail_list=
at_skip_list=
at_group_count=0
m4_divert_pop([PREPARE_TESTS])dnl
m4_divert_push([TESTS])dnl

# Create the master directory if it doesn't already exist.
test -d "$at_suite_dir" ||
  mkdir "$at_suite_dir" ||
  AS_ERROR([cannot create '$at_suite_dir'])

# Can we diff with `/dev/null'?  DU 5.0 refuses.
if diff /dev/null /dev/null >/dev/null 2>&1; then
  at_devnull=/dev/null
else
  at_devnull=$at_suite_dir/devnull
  >"$at_devnull"
fi

# Use `diff -u' when possible.
if at_diff=`diff -u "$at_devnull" "$at_devnull" 2>&1` && test -z "$at_diff"
then
  at_diff='diff -u'
else
  at_diff=diff
fi


for at_group in $at_groups
do
  # Be sure to come back to the top test directory.
  cd "$at_suite_dir"

  case $at_group in
    banner-*)
      at_group_log=$at_suite_log
      ;;

    *)
      at_group_normalized=$at_group
      _AT_NORMALIZE_TEST_GROUP_NUMBER(at_group_normalized)

      # Create a fresh directory for the next test group, and enter.
      at_group_dir=$at_suite_dir/$at_group_normalized
      at_group_log=$at_group_dir/$as_me.log
      if test -d "$at_group_dir"; then
	find "$at_group_dir" -type d ! -perm -700 -exec chmod u+rwx \{\} \;
	rm -fr "$at_group_dir"
      fi
      # Be tolerant if the above `rm' was not able to remove the directory.
      AS_MKDIR_P([$at_group_dir])
      cd $at_group_dir
      ;;
  esac

  echo 0 > "$at_status_file"

  # Clearly separate the test groups when verbose.
  test $at_group_count != 0 && $at_verbose

  # In verbose mode, append to the log file *and* show on
  # the standard output; in quiet mode only write to the log
  if test $at_verbose = echo; then
    at_tee_pipe='tee -a "$at_group_log"'
  else
    at_tee_pipe='cat >> "$at_group_log"'
  fi

  case $at_group in
dnl Test groups inserted here (TESTS).
m4_divert_pop([TESTS])[]dnl
m4_divert_push([TESTS_END])[]dnl

  * )
    echo "$as_me: no such test group: $at_group" >&2
    continue
    ;;
  esac

  # Be sure to come back to the suite directory, in particular
  # since below we might `rm' the group directory we are in currently.
  cd "$at_suite_dir"

  case $at_group in
    banner-*) ;;
    *)
      if test ! -f "$at_check_line_file"; then
	sed "s/^ */$as_me: warning: /" <<_ATEOF