status.m4

autoconf 2.59版,可用于redhat系统.用于编译原码,编写makefile文件.

  case $ac_file in
AC_LIST_LINKS_COMMANDS()dnl
  esac
])dnl
done
_ACEOF
])# _AC_OUTPUT_LINKS



## --------------------- ##
## Configuration files.  ##
## --------------------- ##


# _AC_CONFIG_FILE(FILE..., [COMMANDS])
# ------------------------------------
# See below.
m4_define([_AC_CONFIG_FILE],
[_AC_CONFIG_UNIQUE([$1])dnl
m4_append([AC_LIST_FILES], [ $1])dnl
_AC_CONFIG_DEPENDENCIES([$1])dnl
dnl Register the commands.
m4_ifval([$2],
[m4_append([AC_LIST_FILES_COMMANDS],
[    ]m4_bpatsubst([$1], [:.*])[ ) $2 ;;
])])dnl
])

# AC_CONFIG_FILES(FILE..., [COMMANDS], [INIT-CMDS])
# -------------------------------------------------
# Specify output files, as with AC_OUTPUT, i.e., files that are
# configured with AC_SUBST.  Associate the COMMANDS to each FILE,
# i.e., when config.status creates FILE, run COMMANDS afterwards.
#
# The commands are stored in a growing string AC_LIST_FILES_COMMANDS
# which should be used like this:
#
#      case $ac_file in
#        AC_LIST_FILES_COMMANDS
#      esac
AC_DEFUN([AC_CONFIG_FILES],
[AC_FOREACH([AC_File], [$1], [_AC_CONFIG_FILE(m4_defn([AC_File]), [$2])])dnl
_AC_CONFIG_COMMANDS_INIT([$3])dnl
ac_config_files="$ac_config_files m4_normalize([$1])"
])

# Initialize the lists.
m4_define([AC_LIST_FILES])
m4_define([AC_LIST_FILES_COMMANDS])



# _AC_OUTPUT_FILES
# ----------------
# Do the variable substitutions to create the Makefiles or whatever.
# This is a subroutine of AC_OUTPUT.
#
# It has to send itself into $CONFIG_STATUS (eg, via here documents).
# Upon exit, no here document shall be opened.
m4_define([_AC_OUTPUT_FILES],
[cat >>$CONFIG_STATUS <<_ACEOF

#
# CONFIG_FILES section.
#

# No need to generate the scripts if there are no CONFIG_FILES.
# This happens for instance when ./config.status config.h
if test -n "\$CONFIG_FILES"; then
  # Protect against being on the right side of a sed subst in config.status.
dnl Please, pay attention that this sed code depends a lot on the shape
dnl of the sed commands issued by AC_SUBST.  So if you change one, change
dnl the other too.
[  sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
   s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF]
dnl These here document variables are unquoted when configure runs
dnl but quoted when config.status runs, so variables are expanded once.
dnl Insert the sed substitutions of variables.
m4_ifdef([_AC_SUBST_VARS],
	 [AC_FOREACH([AC_Var], m4_defn([_AC_SUBST_VARS]),
[s,@AC_Var@,$AC_Var,;t t
])])dnl
m4_ifdef([_AC_SUBST_FILES],
	 [AC_FOREACH([AC_Var], m4_defn([_AC_SUBST_FILES]),
[/@AC_Var@/r $AC_Var
s,@AC_Var@,,;t t
])])dnl
CEOF

_ACEOF

  cat >>$CONFIG_STATUS <<\_ACEOF
  # Split the substitutions into bite-sized pieces for seds with
  # small command number limits, like on Digital OSF/1 and HP-UX.
dnl One cannot portably go further than 100 commands because of HP-UX.
dnl Here, there are 2 cmd per line, and two cmd are added later.
  ac_max_sed_lines=48
  ac_sed_frag=1 # Number of current file.
  ac_beg=1 # First line for current file.
  ac_end=$ac_max_sed_lines # Line after last line for current file.
  ac_more_lines=:
  ac_sed_cmds=
  while $ac_more_lines; do
    if test $ac_beg -gt 1; then
      sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    else
      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
    fi
    if test ! -s $tmp/subs.frag; then
      ac_more_lines=false
    else
      # The purpose of the label and of the branching condition is to
      # speed up the sed processing (if there are no `@' at all, there
      # is no need to browse any of the substitutions).
      # These are the two extra sed commands mentioned above.
      (echo [':t
  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b'] && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
      if test -z "$ac_sed_cmds"; then
	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
      else
	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
      fi
      ac_sed_frag=`expr $ac_sed_frag + 1`
      ac_beg=$ac_end
      ac_end=`expr $ac_end + $ac_max_sed_lines`
    fi
  done
  if test -z "$ac_sed_cmds"; then
    ac_sed_cmds=cat
  fi
fi # test -n "$CONFIG_FILES"

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case $ac_file in
  - | *:- | *:-:* ) # input from stdin
	cat >$tmp/stdin
	ac_file_in=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  *:* ) ac_file_in=`echo "$ac_file" | sed 's,[[^:]]*:,,'`
	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
  * )   ac_file_in=$ac_file.in ;;
  esac

  # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
  ac_dir=`AS_DIRNAME(["$ac_file"])`
  AS_MKDIR_P(["$ac_dir"])
  _AC_SRCPATHS(["$ac_dir"])

AC_PROVIDE_IFELSE([AC_PROG_INSTALL],
[  case $INSTALL in
  [[\\/$]]* | ?:[[\\/]]* ) ac_INSTALL=$INSTALL ;;
  *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
  esac
])dnl

  if test x"$ac_file" != x-; then
    AC_MSG_NOTICE([creating $ac_file])
    rm -f "$ac_file"
  fi
  # Let's still pretend it is `configure' which instantiates (i.e., don't
  # use $as_me), people would be surprised to read:
  #    /* config.h.  Generated by config.status.  */
  if test x"$ac_file" = x-; then
    configure_input=
  else
    configure_input="$ac_file.  "
  fi
  configure_input=$configure_input"Generated from `echo $ac_file_in |
				     sed 's,.*/,,'` by configure."

  # First look for the input files in the build tree, otherwise in the
  # src tree.
  ac_file_inputs=`IFS=:
    for f in $ac_file_in; do
      case $f in
      -) echo $tmp/stdin ;;
      [[\\/$]]*)
	 # Absolute (can't be DOS-style, as IFS=:)
	 test -f "$f" || AC_MSG_ERROR([cannot find input file: $f])
	 echo "$f";;
      *) # Relative
	 if test -f "$f"; then
	   # Build tree
	   echo "$f"
	 elif test -f "$srcdir/$f"; then
	   # Source tree
	   echo "$srcdir/$f"
	 else
	   # /dev/null tree
	   AC_MSG_ERROR([cannot find input file: $f])
	 fi;;
      esac
    done` || AS_EXIT([1])
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF
dnl Neutralize VPATH when `$srcdir' = `.'.
  sed "$ac_vpsub
dnl Shell code in configure.ac might set extrasub.
dnl FIXME: do we really want to maintain this feature?
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF
:t
[/@[a-zA-Z_][a-zA-Z_0-9]*@/!b]
s,@configure_input@,$configure_input,;t t
s,@srcdir@,$ac_srcdir,;t t
s,@abs_srcdir@,$ac_abs_srcdir,;t t
s,@top_srcdir@,$ac_top_srcdir,;t t
s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t
s,@builddir@,$ac_builddir,;t t
s,@abs_builddir@,$ac_abs_builddir,;t t
s,@top_builddir@,$ac_top_builddir,;t t
s,@abs_top_builddir@,$ac_abs_top_builddir,;t t
AC_PROVIDE_IFELSE([AC_PROG_INSTALL], [s,@INSTALL@,$ac_INSTALL,;t t
])dnl
dnl The parens around the eval prevent an "illegal io" in Ultrix sh.
" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
  rm -f $tmp/stdin
dnl This would break Makefile dependencies.
dnl  if diff $ac_file $tmp/out >/dev/null 2>&1; then
dnl    echo "$ac_file is unchanged"
dnl   else
dnl     rm -f $ac_file
dnl    mv $tmp/out $ac_file
dnl  fi
  if test x"$ac_file" != x-; then
    mv $tmp/out $ac_file
  else
    cat $tmp/out
    rm -f $tmp/out
  fi

m4_ifset([AC_LIST_FILES_COMMANDS],
[  # Run the commands associated with the file.
  case $ac_file in
AC_LIST_FILES_COMMANDS()dnl
  esac
])dnl
done
_ACEOF
])# _AC_OUTPUT_FILES



## ----------------------- ##
## Configuration subdirs.  ##
## ----------------------- ##


# AC_CONFIG_SUBDIRS(DIR ...)
# --------------------------
# We define two variables:
# - ac_subdirs_all
#   is built in the `default' section, and should contain *all*
#   the arguments of AC_CONFIG_SUBDIRS.  It is used for --help=recursive.
#   It makes no sense for arguments which are sh variables.
# - subdirs
#   which is built at runtime, so some of these dirs might not be
#   included, if for instance the user refused a part of the tree.
#   This is used in _AC_OUTPUT_SUBDIRS.
# _AC_LIST_SUBDIRS is used only for _AC_CONFIG_UNIQUE.
AC_DEFUN([AC_CONFIG_SUBDIRS],
[_AC_CONFIG_UNIQUE([$1])dnl
AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
m4_append([_AC_LIST_SUBDIRS], [ $1])dnl
AS_LITERAL_IF([$1], [],
	      [AC_DIAGNOSE(syntax, [$0: you should use literals])])
m4_divert_text([DEFAULTS],
	       [ac_subdirs_all="$ac_subdirs_all m4_normalize([$1])"])
AC_SUBST(subdirs, "$subdirs $1")dnl
])

# Initialize the list.
m4_define([_AC_LIST_SUBDIRS])


# _AC_OUTPUT_SUBDIRS
# ------------------
# This is a subroutine of AC_OUTPUT, but it does not go into
# config.status, rather, it is called after running config.status.
m4_define([_AC_OUTPUT_SUBDIRS],
[
#
# CONFIG_SUBDIRS section.
#
if test "$no_recursion" != yes; then

  # Remove --cache-file and --srcdir arguments so they do not pile up.
  ac_sub_configure_args=
  ac_prev=
  for ac_arg in $ac_configure_args; do
    if test -n "$ac_prev"; then
      ac_prev=
      continue
    fi
    case $ac_arg in
    -cache-file | --cache-file | --cache-fil | --cache-fi \
    | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
      ac_prev=cache_file ;;
    -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
    | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* \
    | --c=*)
      ;;
    --config-cache | -C)
      ;;
    -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
      ac_prev=srcdir ;;
    -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
      ;;
    -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
      ac_prev=prefix ;;
    -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
      ;;
    *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
    esac
  done

  # Always prepend --prefix to ensure using the same prefix
  # in subdir configurations.
  ac_sub_configure_args="--prefix=$prefix $ac_sub_configure_args"

  ac_popdir=`pwd`
  for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue

    # Do not complain, so a configure script can configure whichever
    # parts of a large source tree are present.
    test -d $srcdir/$ac_dir || continue

    AC_MSG_NOTICE([configuring in $ac_dir])
    AS_MKDIR_P(["$ac_dir"])
    _AC_SRCPATHS(["$ac_dir"])

    cd $ac_dir

    # Check for guested configure; otherwise get Cygnus style configure.
    if test -f $ac_srcdir/configure.gnu; then
      ac_sub_configure="$SHELL '$ac_srcdir/configure.gnu'"
    elif test -f $ac_srcdir/configure; then
      ac_sub_configure="$SHELL '$ac_srcdir/configure'"
    elif test -f $ac_srcdir/configure.in; then
      ac_sub_configure=$ac_configure
    else
      AC_MSG_WARN([no configuration information is in $ac_dir])
      ac_sub_configure=
    fi

    # The recursion is here.
    if test -n "$ac_sub_configure"; then
      # Make the cache file name correct relative to the subdirectory.
      case $cache_file in
      [[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
      *) # Relative path.
	ac_sub_cache_file=$ac_top_builddir$cache_file ;;
      esac

      AC_MSG_NOTICE([running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
      # The eval makes quoting arguments work.
      eval $ac_sub_configure $ac_sub_configure_args \
	   --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir ||
	AC_MSG_ERROR([$ac_sub_configure failed for $ac_dir])
    fi

    cd $ac_popdir
  done
fi
])# _AC_OUTPUT_SUBDIRS




## -------------------------- ##
## Outputting config.status.  ##
## -------------------------- ##


# autoupdate::AC_OUTPUT([CONFIG_FILES...], [EXTRA-CMDS], [INIT-CMDS])
# -------------------------------------------------------------------
#
# If there are arguments given to AC_OUTPUT, dispatch them to the
# proper modern macros.
AU_DEFUN([AC_OUTPUT],
[m4_ifvaln([$1],
	   [AC_CONFIG_FILES([$1])])dnl
m4_ifvaln([$2$3],
	  [AC_CONFIG_COMMANDS(default, [[$2]], [[$3]])])dnl
[AC_OUTPUT]])


# AC_OUTPUT([CONFIG_FILES...], [EXTRA-CMDS], [INIT-CMDS])
# -------------------------------------------------------
# The big finish.
# Produce config.status, config.h, and links; and configure subdirs.
# The CONFIG_HEADERS are defined in the m4 variable AC_LIST_HEADERS.
# Pay special attention not to have too long here docs: some old
# shells die.  Unfortunately the limit is not known precisely...
m4_define([AC_OUTPUT],
[dnl Dispatch the extra arguments to their native macros.