From: Akim Demaille <akim@epita.fr>
Date: Fri, 12 May 2000 09:15:01 +0000 (+0000)
Subject: * doc/autoconf.texi (Exiting from Shell Scripts): New node.
X-Git-Tag: autoconf-2.50~918
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1933ade2ca5075dfe93cc306518883e78672f295;p=thirdparty%2Fautoconf.git

* doc/autoconf.texi (Exiting from Shell Scripts): New node.
(Autoconf Language): Follow the advice in the new node.
---

diff --git a/ChangeLog b/ChangeLog
index 074708cfd..bf3849531 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2000-05-12  Paul Eggert  <eggert@twinsun.com>
+
+	* doc/autoconf.texi (Exiting from Shell Scripts): New node.
+	(Autoconf Language): Follow the advice in the new node.
+
 2000-05-12  Peter Eisentraut  <peter_e@gmx.net>
 
 	* doc/autoconf.texi: Fix typos.
diff --git a/configure b/configure
index ad9a7d5da..a3ea33503 100755
--- a/configure
+++ b/configure
@@ -1,32 +1,18 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by Autoconf 2.14a.
-#
+# Generated automatically using Autoconf version 2.14a
 # Copyright (C) 1992, 93, 94, 95, 96, 98, 99, 2000
 # Free Software Foundation, Inc.
+#
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
 
-#
-# Initializations.
-#
+# Defaults:
+ac_arg_with_help=
+ac_arg_enable_help=
+ac_arg_var_help=
 ac_default_prefix=/usr/local
-subdirs=
-MFLAGS= MAKEFLAGS=
-SHELL=${CONFIG_SHELL-/bin/sh}
-# Maximum number of lines to put in a shell here document.
-: ${ac_max_here_lines=48}
-# Sed expression to map a string onto a valid sh and CPP variable names.
-ac_tr_sh='sed -e y%*+%pp%;s%[^a-zA-Z0-9_]%_%g'
-ac_tr_cpp='sed -e y%*abcdefghijklmnopqrstuvwxyz%PABCDEFGHIJKLMNOPQRSTUVWXYZ%;s%[^A-Z0-9_]%_%g'
-
-# By default always use an empty string as the executable extension.
-# Only change it if the script calls AC_EXEEXT.
-ac_exeext=
-# By default assume that objects files use an extension of .o.  Only
-# change it if the script calls AC_OBJEXT.
-ac_objext=o
-# Factoring default headers for most tests.
+# Factorizing default headers for most tests.
 ac_includes_default="\
 #include <stdio.h>
 #include <sys/types.h>
@@ -54,16 +40,17 @@ ac_includes_default="\
 #if HAVE_UNISTD_H
 # include <unistd.h>
 #endif"
-ac_unique_file="acgeneral.m4"
+# Any additions from configure.in:
 
 # Initialize some variables set by options.
-ac_init_help=
-ac_init_version=false
 # The variables have the same names as the options, with
 # dashes changed to underlines.
-cache_file=/dev/null
+build=NONE
+cache_file=./config.cache
 exec_prefix=NONE
+host=NONE
 no_create=
+nonopt=NONE
 no_recursion=
 prefix=NONE
 program_prefix=NONE
@@ -72,6 +59,7 @@ program_transform_name=s,x,x,
 silent=
 site=
 srcdir=
+target=NONE
 verbose=
 x_includes=NONE
 x_libraries=NONE
@@ -88,6 +76,16 @@ oldincludedir='/usr/include'
 infodir='${prefix}/info'
 mandir='${prefix}/man'
 
+# Initialize some other variables.
+subdirs=
+MFLAGS= MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+# Maximum number of lines to put in a shell here document.
+: ${ac_max_here_lines=48}
+# Sed expression to map a string onto a valid sh and CPP variable names.
+ac_tr_sh='sed -e y%*+%pp%;s%[^a-zA-Z0-9_]%_%g'
+ac_tr_cpp='sed -e y%*abcdefghijklmnopqrstuvwxyz%PABCDEFGHIJKLMNOPQRSTUVWXYZ%;s%[^A-Z0-9_]%_%g'
+
 ac_prev=
 for ac_option
 do
@@ -107,31 +105,31 @@ do
   -bindir | --bindir | --bindi | --bind | --bin | --bi)
     ac_prev=bindir ;;
   -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
-    bindir=$ac_optarg ;;
+    bindir="$ac_optarg" ;;
 
   -build | --build | --buil | --bui | --bu)
     ac_prev=build ;;
   -build=* | --build=* | --buil=* | --bui=* | --bu=*)
-    build=$ac_optarg ;;
+    build="$ac_optarg" ;;
 
   -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=*)
-    cache_file=$ac_optarg ;;
+    cache_file="$ac_optarg" ;;
 
   -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
     ac_prev=datadir ;;
   -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
   | --da=*)
-    datadir=$ac_optarg ;;
+    datadir="$ac_optarg" ;;
 
   -disable-* | --disable-*)
     ac_feature=`echo "$ac_option"|sed -e 's/-*disable-//'`
     # Reject names that are not valid shell variable names.
     if echo "$ac_feature" | grep '[^-a-zA-Z0-9_]' >/dev/null 2>&1; then
-      { echo "configure: error: invalid feature: $ac_feature" >&2; exit 1; }
+      { echo "configure: error: invalid feature: $ac_feature" 1>&2; exit 1; }
     fi
     ac_feature=`echo $ac_feature| sed 's/-/_/g'`
     eval "enable_${ac_feature}=no" ;;
@@ -140,7 +138,7 @@ do
     ac_feature=`echo "$ac_option"|sed -e 's/-*enable-//' -e 's/=.*//'`
     # Reject names that are not valid shell variable names.
     if echo "$ac_feature" | grep '[^-a-zA-Z0-9_]' >/dev/null 2>&1; then
-      { echo "configure: error: invalid feature: $ac_feature" >&2; exit 1; }
+      { echo "configure: error: invalid feature: $ac_feature" 1>&2; exit 1; }
     fi
     ac_feature=`echo $ac_feature| sed 's/-/_/g'`
     case "$ac_option" in
@@ -156,47 +154,113 @@ do
   -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
   | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
   | --exec=* | --exe=* | --ex=*)
-    exec_prefix=$ac_optarg ;;
+    exec_prefix="$ac_optarg" ;;
 
   -gas | --gas | --ga | --g)
     # Obsolete; use --with-gas.
     with_gas=yes ;;
 
   -help | --help | --hel | --he | -h)
-    ac_init_help=long ;;
-  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
-    ac_init_help=recursive ;;
-  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
-    ac_init_help=short ;;
+    # Omit some internal or obsolete options to make the list less imposing.
+    # This message is too long to be a string in the A/UX 3.1 sh.
+    cat <<\EOF
+`configure' configures software source code packages to adapt to many kinds
+of systems.
+
+Usage: configure [OPTION]... [VAR=VALUE]... [HOST]
+
+To safely assign special values to environment variables (e.g., CC,
+CFLAGS...), give to `configure' the definition as VAR=VALUE.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              print this message
+  -V, --version           print the version of autoconf that created configure
+  -q, --quiet, --silent   do not print \`checking...' messages
+      --cache-file=FILE   cache test results in FILE
+  -n, --no-create         do not create output files
+
+Directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [same as prefix]
+  --bindir=DIR            user executables in DIR [EPREFIX/bin]
+  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
+  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
+  --datadir=DIR           read-only architecture-independent data in DIR
+                          [PREFIX/share]
+  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
+                          [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
+  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
+  --includedir=DIR        C header files in DIR [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
+  --infodir=DIR           info documentation in DIR [PREFIX/info]
+  --mandir=DIR            man documentation in DIR [PREFIX/man]
+  --srcdir=DIR            find the sources in DIR [configure dir or ..]
+
+Program names:
+  --program-prefix=PREFIX prepend PREFIX to installed program names
+  --program-suffix=SUFFIX append SUFFIX to installed program names
+  --program-transform-name=PROGRAM
+                          run sed PROGRAM on installed program names
+
+EOF
+    cat <<\EOF
+Host type:
+  --build=BUILD      configure for building on BUILD [BUILD=HOST]
+  --host=HOST        configure for HOST [guessed]
+  --target=TARGET    configure for TARGET [TARGET=HOST]
+
+X features:
+  --x-includes=DIR    X include files are in DIR
+  --x-libraries=DIR   X library files are in DIR
+EOF
+    test -n "$ac_arg_enable_help" && echo "
+Optional features:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]\
+$ac_arg_enable_help"
+    test -n "$ac_arg_with_help" && echo "
+Optional packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)\
+$ac_arg_with_help"
+    test -n "$ac_arg_var_help" && echo "
+Some influent environment variables:$ac_arg_var_help"
+    exit 0 ;;
 
   -host | --host | --hos | --ho)
     ac_prev=host ;;
   -host=* | --host=* | --hos=* | --ho=*)
-    host=$ac_optarg ;;
+    host="$ac_optarg" ;;
 
   -includedir | --includedir | --includedi | --included | --include \
   | --includ | --inclu | --incl | --inc)
     ac_prev=includedir ;;
   -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
   | --includ=* | --inclu=* | --incl=* | --inc=*)
-    includedir=$ac_optarg ;;
+    includedir="$ac_optarg" ;;
 
   -infodir | --infodir | --infodi | --infod | --info | --inf)
     ac_prev=infodir ;;
   -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
-    infodir=$ac_optarg ;;
+    infodir="$ac_optarg" ;;
 
   -libdir | --libdir | --libdi | --libd)
     ac_prev=libdir ;;
   -libdir=* | --libdir=* | --libdi=* | --libd=*)
-    libdir=$ac_optarg ;;
+    libdir="$ac_optarg" ;;
 
   -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
   | --libexe | --libex | --libe)
     ac_prev=libexecdir ;;
   -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
   | --libexe=* | --libex=* | --libe=*)
-    libexecdir=$ac_optarg ;;
+    libexecdir="$ac_optarg" ;;
 
   -localstatedir | --localstatedir | --localstatedi | --localstated \
   | --localstate | --localstat | --localsta | --localst \
@@ -205,12 +269,12 @@ do
   -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
   | --localstate=* | --localstat=* | --localsta=* | --localst=* \
   | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
-    localstatedir=$ac_optarg ;;
+    localstatedir="$ac_optarg" ;;
 
   -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
     ac_prev=mandir ;;
   -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
-    mandir=$ac_optarg ;;
+    mandir="$ac_optarg" ;;
 
   -nfp | --nfp | --nf)
     # Obsolete; use --without-fp.
@@ -231,26 +295,26 @@ do
   -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
   | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
   | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
-    oldincludedir=$ac_optarg ;;
+    oldincludedir="$ac_optarg" ;;
 
   -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
     ac_prev=prefix ;;
   -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
-    prefix=$ac_optarg ;;
+    prefix="$ac_optarg" ;;
 
   -program-prefix | --program-prefix | --program-prefi | --program-pref \
   | --program-pre | --program-pr | --program-p)
     ac_prev=program_prefix ;;
   -program-prefix=* | --program-prefix=* | --program-prefi=* \
   | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
-    program_prefix=$ac_optarg ;;
+    program_prefix="$ac_optarg" ;;
 
   -program-suffix | --program-suffix | --program-suffi | --program-suff \
   | --program-suf | --program-su | --program-s)
     ac_prev=program_suffix ;;
   -program-suffix=* | --program-suffix=* | --program-suffi=* \
   | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
-    program_suffix=$ac_optarg ;;
+    program_suffix="$ac_optarg" ;;
 
   -program-transform-name | --program-transform-name \
   | --program-transform-nam | --program-transform-na \
@@ -267,7 +331,7 @@ do
   | --program-transfo=* | --program-transf=* \
   | --program-trans=* | --program-tran=* \
   | --progr-tra=* | --program-tr=* | --program-t=*)
-    program_transform_name=$ac_optarg ;;
+    program_transform_name="$ac_optarg" ;;
 
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil)
@@ -277,7 +341,7 @@ do
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
   | --sbi=* | --sb=*)
-    sbindir=$ac_optarg ;;
+    sbindir="$ac_optarg" ;;
 
   -sharedstatedir | --sharedstatedir | --sharedstatedi \
   | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
@@ -288,41 +352,42 @@ do
   | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
   | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
   | --sha=* | --sh=*)
-    sharedstatedir=$ac_optarg ;;
+    sharedstatedir="$ac_optarg" ;;
 
   -site | --site | --sit)
     ac_prev=site ;;
   -site=* | --site=* | --sit=*)
-    site=$ac_optarg ;;
+    site="$ac_optarg" ;;
 
   -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
     ac_prev=srcdir ;;
   -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
-    srcdir=$ac_optarg ;;
+    srcdir="$ac_optarg" ;;
 
   -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
   | --syscon | --sysco | --sysc | --sys | --sy)
     ac_prev=sysconfdir ;;
   -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
   | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
-    sysconfdir=$ac_optarg ;;
+    sysconfdir="$ac_optarg" ;;
 
   -target | --target | --targe | --targ | --tar | --ta | --t)
     ac_prev=target ;;
   -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
-    target=$ac_optarg ;;
+    target="$ac_optarg" ;;
 
   -v | -verbose | --verbose | --verbos | --verbo | --verb)
     verbose=yes ;;
 
   -version | --version | --versio | --versi | --vers | -V)
-    ac_init_version=: ;;
+    echo "configure generated by autoconf version 2.14a"
+    exit 0 ;;
 
   -with-* | --with-*)
     ac_package=`echo "$ac_option"|sed -e 's/-*with-//' -e 's/=.*//'`
     # Reject names that are not valid shell variable names.
-    if echo "$ac_package" | grep '[^-a-zA-Z0-9_]' >/dev/null 2>&1; then
-      { echo "configure: error: invalid package: $ac_package" >&2; exit 1; }
+    if echo "$ac_feature" | grep '[^-a-zA-Z0-9_]' >/dev/null 2>&1; then
+      { echo "configure: error: invalid package: $ac_package" 1>&2; exit 1; }
     fi
     ac_package=`echo $ac_package| sed 's/-/_/g'`
     case "$ac_option" in
@@ -334,8 +399,8 @@ do
   -without-* | --without-*)
     ac_package=`echo "$ac_option"|sed -e 's/-*without-//'`
     # Reject names that are not valid shell variable names.
-    if echo "$ac_package" | grep '[^-a-zA-Z0-9_]' >/dev/null 2>&1; then
-      { echo "configure: error: invalid package: $ac_package" >&2; exit 1; }
+    if echo "$ac_feature" | grep '[^-a-zA-Z0-9_]' >/dev/null 2>&1; then
+      { echo "configure: error: invalid package: $ac_package" 1>&2; exit 1; }
     fi
     ac_package=`echo $ac_package| sed 's/-/_/g'`
     eval "with_${ac_package}=no" ;;
@@ -349,238 +414,48 @@ do
     ac_prev=x_includes ;;
   -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
   | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
-    x_includes=$ac_optarg ;;
+    x_includes="$ac_optarg" ;;
 
   -x-libraries | --x-libraries | --x-librarie | --x-librari \
   | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
     ac_prev=x_libraries ;;
   -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
-    x_libraries=$ac_optarg ;;
+    x_libraries="$ac_optarg" ;;
 
   -*) { echo "configure: error: unrecognized option: $ac_option
-Try \`configure --help' for more information." >&2; exit 1; }
+Try \`configure --help' for more information." 1>&2; exit 1; }
     ;;
 
   *=*)
     ac_envvar=`echo "$ac_option" | sed -e 's/=.*//'`
     # Reject names that are not valid shell variable names.
     if echo "$ac_envvar" | grep '[^a-zA-Z0-9_]' >/dev/null 2>&1; then
-      { echo "configure: error: invalid variable name: $ac_envvar" >&2; exit 1; }
+      { echo "configure: error: invalid variable name: $ac_envvar" 1>&2; exit 1; }
     fi
     ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
     eval "$ac_envvar='$ac_optarg'"
     export $ac_envvar ;;
 
   *)
-    if echo "$ac_option" | grep '[^-a-zA-Z0-9.]' >/dev/null 2>&1; then
-      echo "configure: warning: invalid host type: $ac_option" >&2
+    if echo "$ac_feature" | grep '[^-a-zA-Z0-9.]' >/dev/null 2>&1; then
+      echo "configure: warning: invalid host type: $ac_option" 1>&2
+    fi
+    if test "x$nonopt" != xNONE; then
+      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
     fi
-    echo "configure: warning: you should use --build, --host, --target" >&2
-    : ${build=$ac_option} ${host=$ac_option} ${target=$ac_option}
+    nonopt="$ac_option"
     ;;
 
   esac
 done
 
 if test -n "$ac_prev"; then
-  { echo "configure: error: missing argument to --\`echo $ac_prev | sed 's/_/-/g'\`" >&2; exit 1; }
-fi
-
-# Be sure to have absolute paths.
-for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
-              localstatedir libdir includedir oldincludedir infodir mandir \
-              exec_prefix prefix
-do
-  eval ac_val=$`echo $ac_var`
-  case $ac_val in
-    [\\/$]* | ?:[\\/]* ) ;;
-    NONE ) ;;
-    *)  { echo "configure: error: expected an absolute path for --$ac_var: $ac_val" >&2; exit 1; };;
-  esac
-done
-
-# Find the source files, if location was not specified.
-if test -z "$srcdir"; then
-  ac_srcdir_defaulted=yes
-  # Try the directory containing this script, then its parent.
-  ac_prog=$0
-  ac_confdir=`echo "$ac_prog" | sed 's%/[^/][^/]*$%%'`
-  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
-  srcdir=$ac_confdir
-  if test ! -r $srcdir/$ac_unique_file; then
-    srcdir=..
-  fi
-else
-  ac_srcdir_defaulted=no
+  { echo "configure: error: missing argument to --\`echo $ac_prev | sed 's/_/-/g'\`" 1>&2; exit 1; }
 fi
-if test ! -r $srcdir/$ac_unique_file; then
-  if test "$ac_srcdir_defaulted" = yes; then
-    { echo "configure: error: cannot find sources in $ac_confdir or .." >&2; exit 1; }
-  else
-    { echo "configure: error: cannot find sources in $srcdir" >&2; exit 1; }
-  fi
-fi
-srcdir=`echo "$srcdir" | sed 's%\([^/]\)/*$%\1%'`
-
-#
-# Report the --help message.
-#
-if test "$ac_init_help" = "long"; then
-  # Omit some internal or obsolete options to make the list less imposing.
-  # This message is too long to be a string in the A/UX 3.1 sh.
-  cat <<EOF
-\`configure' configures Autoconf 2.14a to adapt to many kinds of systems.
-
-Usage: $0 [OPTION]... [VAR=VALUE]...
-
-To assign environment variables (e.g., CC, CFLAGS...), specify them as
-VAR=VALUE.
-
-Defaults for the options are specified in brackets.
-
-Configuration:
-  -h, --help              display this help and exit
-      --help=short        display options specific to this package
-      --help=recursive    display the short help of all the included packages
-  -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking...' messages
-      --cache-file=FILE   cache test results in FILE [disabled]
-  -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
-
-EOF
-
-  cat <<EOF
-Installation directories:
-  --prefix=PREFIX         install architecture-independent files in PREFIX
-                          [$ac_default_prefix]
-  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
-                          [PREFIX]
-
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
-
-For better control, use the options below.
-
-Fine tuning of the installation directories:
-  --bindir=DIR           user executables [EPREFIX/bin]
-  --sbindir=DIR          system admin executables [EPREFIX/sbin]
-  --libexecdir=DIR       program executables [EPREFIX/libexec]
-  --datadir=DIR          read-only architecture-independent data [PREFIX/share]
-  --sysconfdir=DIR       read-only single-machine data [PREFIX/etc]
-  --sharedstatedir=DIR   modifiable architecture-independent data [PREFIX/com]
-  --localstatedir=DIR    modifiable single-machine data [PREFIX/var]
-  --libdir=DIR           object code libraries [EPREFIX/lib]
-  --includedir=DIR       C header files [PREFIX/include]
-  --oldincludedir=DIR    C header files for non-gcc [/usr/include]
-  --infodir=DIR          info documentation [PREFIX/info]
-  --mandir=DIR           man documentation [PREFIX/man]
-EOF
-
-  cat <<\EOF
-
-Program names:
-  --program-prefix=PREFIX            prepend PREFIX to installed program names
-  --program-suffix=SUFFIX            append SUFFIX to installed program names
-  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
-EOF
-fi
-
-if test -n "$ac_init_help"; then
-  case "$ac_init_help" in
-     short | recursive ) echo "Configuration of Autoconf 2.14a:";;
-   esac
-  cat <<\EOF
-EOF
-fi
-
-if test "$ac_init_help" = "recursive"; then
-  # If there are subdirs, report their specific --help.
-  ac_popdir=`pwd`
-  for ac_subdir in : $subdirs; do test "x$ac_subdir" = x: && continue
-    cd $ac_subdir
-    # A "../" for each directory in /$ac_subdir.
-    ac_dots=`echo $ac_subdir |
-             sed -e 's%^\./%%;s%[^/]$%&/%;s%[^/]*/%../%g'`
-
-    case "$srcdir" in
-    .) # No --srcdir option.  We are building in place.
-      ac_sub_srcdir=$srcdir ;;
-    [\\/]* | ?:[\\/]* ) # Absolute path.
-      ac_sub_srcdir=$srcdir/$ac_subdir ;;
-    *) # Relative path.
-      ac_sub_srcdir=$ac_dots$srcdir/$ac_subdir ;;
-    esac
-
-    # Check for guested configure; otherwise get Cygnus style configure.
-    if test -f $ac_sub_srcdir/configure; then
-      echo
-      $SHELL $ac_sub_srcdir/configure  --help=recursive
-    elif test -f $ac_sub_srcdir/configure.in; then
-      echo
-      $ac_configure --help
-    else
-      echo "configure: warning: no configuration information is in $ac_subdir" >&2
-    fi
-    cd $ac_popdir
-  done
-fi
-
-test -n "$ac_init_help" && exit 0
-if $ac_init_version; then
-  cat <<\EOF
-configure (Autoconf 2.14a) 2.14a
-
-Copyright (C) 1992, 93, 94, 95, 96, 98, 99, 2000
-Free Software Foundation, Inc.
-This configure script is free software; the Free Software Foundation
-gives unlimited permission to copy, distribute and modify it.
-EOF
-  exit 0
-fi
-# NLS nuisances.
-# Only set these to C if already set.  These must not be set unconditionally
-# because not all systems understand e.g. LANG=C (notably SCO).
-# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
-# Non-C LC_CTYPE values break the ctype check.
-if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
-if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
-if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
-if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
-
-# IFS
-# We need space, tab and new line, in precisely that order.
-ac_nl='
-'
-IFS=" 	$ac_nl"
 
 trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
 
-# Keep a trace of the command line.
-# Strip out --no-create and --no-recursion so they do not pile up.
-# Also quote any args containing shell meta-characters.
-ac_configure_args=
-ac_sep=
-for ac_arg
-do
-  case "$ac_arg" in
-  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
-  | --no-cr | --no-c) ;;
-  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
-  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
-  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
-    ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
-    ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
-    ac_sep=" " ;;
-  *) ac_configure_args="$ac_configure_args$ac_sep$ac_arg"
-     ac_sep=" " ;;
-  esac
-  # Get rid of the leading space.
-done
-
 # File descriptor usage:
 # 0 standard input
 # 1 file creation
@@ -599,16 +474,67 @@ exec 5>./config.log
 echo "\
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
+" 1>&5
 
-It was created by configure (Autoconf 2.14a) 2.14a, executed with
- > $0 $ac_configure_args
-" >&5
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell meta-characters.
+ac_configure_args=
+for ac_arg
+do
+  case "$ac_arg" in
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c) ;;
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+  ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
+  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
+  esac
+done
+
+# NLS nuisances.
+# Only set these to C if already set.  These must not be set unconditionally
+# because not all systems understand e.g. LANG=C (notably SCO).
+# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
+# Non-C LC_CTYPE values break the ctype check.
+if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
+if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
 
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -rf conftest* confdefs.h
 # AIX cpp loses on an empty file, so make sure it contains at least a newline.
 echo >confdefs.h
 
+# A filename unique to this package, relative to the directory that
+# configure is in, which we can look for to find out if srcdir is correct.
+ac_unique_file=acgeneral.m4
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then its parent.
+  ac_prog=$0
+  ac_confdir=`echo "$ac_prog" | sed 's%/[^/][^/]*$%%'`
+  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
+  srcdir=$ac_confdir
+  if test ! -r $srcdir/$ac_unique_file; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+  if test "$ac_srcdir_defaulted" = yes; then
+    { echo "configure: error: cannot find sources in $ac_confdir or .." 1>&2; exit 1; }
+  else
+    { echo "configure: error: cannot find sources in $srcdir" 1>&2; exit 1; }
+  fi
+fi
+srcdir=`echo "$srcdir" | sed 's%\([^/]\)/*$%\1%'`
+
 # Prefer explicitly selected file to automatically selected ones.
 if test -z "$CONFIG_SITE"; then
   if test "x$prefix" != xNONE; then
@@ -625,7 +551,7 @@ for ac_site_file in $CONFIG_SITE; do
 done
 
 if test -r "$cache_file"; then
-  test "x$cache_file" != "x/dev/null" && echo "loading cache $cache_file"
+  echo "loading cache $cache_file"
       test -f "$cache_file" && . $cache_file
 else
   echo "creating cache $cache_file"
@@ -635,10 +561,12 @@ fi
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
+ac_exeext=
+ac_objext=o
 if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
   # Stardent Vistra SVR4 grep lacks -e, says Kaveh R. Ghazi.
   if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
@@ -668,7 +596,7 @@ for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
   fi
 done
 if test -z "$ac_aux_dir"; then
-  { echo "configure: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&2; exit 1; }
+  { echo "configure: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
 fi
 ac_config_guess="$SHELL $ac_aux_dir/config.guess"
 ac_config_sub="$SHELL $ac_aux_dir/config.sub"
@@ -685,13 +613,13 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
-echo "configure:605: checking for a BSD compatible install" >&5
-echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" >&6
+echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" 1>&6
+echo "configure:545: checking for a BSD compatible install" 1>&5
 if test -z "$INSTALL"; then
 if test "${ac_cv_path_install+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
-    ac_save_IFS=$IFS; IFS=':'
+    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS=":"
   for ac_dir in $PATH; do
     # Account for people who put trailing slashes in PATH elements.
     case "$ac_dir/" in
@@ -719,21 +647,20 @@ else
       ;;
     esac
   done
-  IFS=$ac_save_IFS
+  IFS="$ac_save_IFS"
 
 fi
   if test "${ac_cv_path_install+set}" = set; then
-    INSTALL=$ac_cv_path_install
+    INSTALL="$ac_cv_path_install"
   else
     # As a last resort, use the slow shell script.  We don't cache a
     # path for INSTALL within a source directory, because that will
     # break other packages using the cache if that directory is
     # removed, or if the path is relative.
-    INSTALL=$ac_install_sh
+    INSTALL="$ac_install_sh"
   fi
 fi
-echo "configure:651: result: $INSTALL" >&5
-echo "${ECHO_T}$INSTALL" >&6
+echo "$ECHO_T""$INSTALL" 1>&6
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 # It thinks the first close brace ends the variable substitution.
@@ -743,8 +670,8 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
-echo "configure:658: checking whether build environment is sane" >&5
-echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
+echo $ECHO_N "checking whether build environment is sane... $ECHO_C" 1>&6
+echo "configure:597: checking whether build environment is sane" 1>&5
 # Just in case
 sleep 1
 echo timestamp > conftestfile
@@ -767,7 +694,7 @@ if (
       # broken ls alias from the environment.  This has actually
       # happened.  Such a system could not be considered "sane".
       { echo "configure: error: ls -t appears to fail.  Make sure there is not a broken
-alias in your environment" >&2; exit 1; }
+alias in your environment" 1>&2; exit 1; }
    fi
 
    test "$2" = conftestfile
@@ -777,19 +704,18 @@ then
    :
 else
    { echo "configure: error: newly created file is older than distributed files!
-Check your system clock" >&2; exit 1; }
+Check your system clock" 1>&2; exit 1; }
 fi
 rm -f conftest*
-echo "configure:693: result: yes" >&5
-echo "${ECHO_T}yes" >&6
+echo "$ECHO_T""yes" 1>&6
 if test "$program_transform_name" = s,x,x,; then
   program_transform_name=
 else
   # Double any \ or $.  echo might interpret backslashes.
-  cat <<\EOF >conftestsed
+  cat <<\EOF_SED >conftestsed
 s,\\,\\\\,g; s,\$,$$,g
-EOF
-  program_transform_name=`echo $program_transform_name | sed -f conftestsed`
+EOF_SED
+  program_transform_name=`echo $program_transform_name|sed -f conftestsed`
   rm -f conftestsed
 fi
 test "$program_prefix" != NONE &&
@@ -799,13 +725,13 @@ test "$program_suffix" != NONE &&
   program_transform_name="s,\$\$,${program_suffix},;$program_transform_name"
 
 # sed with no file args requires a program.
-test -z "$program_transform_name" && program_transform_name="s,x,x,"
+test "$program_transform_name" = "" && program_transform_name="s,x,x,"
 
-echo "configure:712: checking whether ${MAKE-make} sets \${MAKE}" >&5
-echo $ECHO_N "checking whether ${MAKE-make} sets \${MAKE}... $ECHO_C" >&6
+echo $ECHO_N "checking whether ${MAKE-make} sets \${MAKE}... $ECHO_C" 1>&6
+echo "configure:650: checking whether ${MAKE-make} sets \${MAKE}" 1>&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
   cat >conftestmake <<\EOF
 all:
@@ -821,12 +747,10 @@ fi
 rm -f conftestmake
 fi
 if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
-  echo "configure:732: result: yes" >&5
-echo "${ECHO_T}yes" >&6
+  echo "$ECHO_T""yes" 1>&6
   SET_MAKE=
 else
-  echo "configure:736: result: no" >&5
-echo "${ECHO_T}no" >&6
+  echo "$ECHO_T""no" 1>&6
   SET_MAKE="MAKE=${MAKE-make}"
 fi
 
@@ -835,9 +759,8 @@ PACKAGE=autoconf
 VERSION=2.14a
 
 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
-  { echo "configure: error: source directory already configured; run \"make distclean\" there first" >&2; exit 1; }
+  { echo "configure: error: source directory already configured; run "make distclean" there first" 1>&2; exit 1; }
 fi
-
 cat >>confdefs.h <<EOF
 #define PACKAGE "$PACKAGE"
 EOF
@@ -847,79 +770,69 @@ cat >>confdefs.h <<EOF
 EOF
 
 missing_dir=`cd $ac_aux_dir && pwd`
-echo "configure:752: checking for working aclocal" >&5
-echo $ECHO_N "checking for working aclocal... $ECHO_C" >&6
+echo $ECHO_N "checking for working aclocal... $ECHO_C" 1>&6
+echo "configure:688: checking for working aclocal" 1>&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
 if (aclocal --version) < /dev/null > /dev/null 2>&1; then
    ACLOCAL=aclocal
-   echo "configure:759: result: found" >&5
-echo "${ECHO_T}found" >&6
+   echo "$ECHO_T""found" 1>&6
 else
    ACLOCAL="$missing_dir/missing aclocal"
-   echo "configure:763: result: missing" >&5
-echo "${ECHO_T}missing" >&6
+   echo "$ECHO_T""missing" 1>&6
 fi
 
-echo "configure:766: checking for working autoconf" >&5
-echo $ECHO_N "checking for working autoconf... $ECHO_C" >&6
+echo $ECHO_N "checking for working autoconf... $ECHO_C" 1>&6
+echo "configure:700: checking for working autoconf" 1>&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
 if (autoconf --version) < /dev/null > /dev/null 2>&1; then
    AUTOCONF=autoconf
-   echo "configure:773: result: found" >&5
-echo "${ECHO_T}found" >&6
+   echo "$ECHO_T""found" 1>&6
 else
    AUTOCONF="$missing_dir/missing autoconf"
-   echo "configure:777: result: missing" >&5
-echo "${ECHO_T}missing" >&6
+   echo "$ECHO_T""missing" 1>&6
 fi
 
-echo "configure:780: checking for working automake" >&5
-echo $ECHO_N "checking for working automake... $ECHO_C" >&6
+echo $ECHO_N "checking for working automake... $ECHO_C" 1>&6
+echo "configure:712: checking for working automake" 1>&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
 if (automake --version) < /dev/null > /dev/null 2>&1; then
    AUTOMAKE=automake
-   echo "configure:787: result: found" >&5
-echo "${ECHO_T}found" >&6
+   echo "$ECHO_T""found" 1>&6
 else
    AUTOMAKE="$missing_dir/missing automake"
-   echo "configure:791: result: missing" >&5
-echo "${ECHO_T}missing" >&6
+   echo "$ECHO_T""missing" 1>&6
 fi
 
-echo "configure:794: checking for working autoheader" >&5
-echo $ECHO_N "checking for working autoheader... $ECHO_C" >&6
+echo $ECHO_N "checking for working autoheader... $ECHO_C" 1>&6
+echo "configure:724: checking for working autoheader" 1>&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
 if (autoheader --version) < /dev/null > /dev/null 2>&1; then
    AUTOHEADER=autoheader
-   echo "configure:801: result: found" >&5
-echo "${ECHO_T}found" >&6
+   echo "$ECHO_T""found" 1>&6
 else
    AUTOHEADER="$missing_dir/missing autoheader"
-   echo "configure:805: result: missing" >&5
-echo "${ECHO_T}missing" >&6
+   echo "$ECHO_T""missing" 1>&6
 fi
 
-echo "configure:808: checking for working makeinfo" >&5
-echo $ECHO_N "checking for working makeinfo... $ECHO_C" >&6
+echo $ECHO_N "checking for working makeinfo... $ECHO_C" 1>&6
+echo "configure:736: checking for working makeinfo" 1>&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
 if (makeinfo --version) < /dev/null > /dev/null 2>&1; then
    MAKEINFO=makeinfo
-   echo "configure:815: result: found" >&5
-echo "${ECHO_T}found" >&6
+   echo "$ECHO_T""found" 1>&6
 else
    MAKEINFO="$missing_dir/missing makeinfo"
-   echo "configure:819: result: missing" >&5
-echo "${ECHO_T}missing" >&6
+   echo "$ECHO_T""missing" 1>&6
 fi
 
 AT_TESTPATH=..
@@ -928,46 +841,44 @@ for ac_prog in gm4 gnum4 m4
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "configure:827: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+echo $ECHO_N "checking for $ac_word... $ECHO_C" 1>&6
+echo "configure:753: checking for $ac_word" 1>&5
 if test "${ac_cv_path_M4+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
   case "$M4" in
-  [\\/]* | ?:[\\/]*)
+  /\\* | ?:/\\*)
   ac_cv_path_M4="$M4" # Let the user override the test with a path.
   ;;
   *)
-  ac_save_ifs=$IFS; IFS=':'
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
   ac_dummy="$PATH"
   for ac_dir in $ac_dummy; do
     test -z "$ac_dir" && ac_dir=.
     if test -f "$ac_dir/$ac_word"; then
-      ac_cv_path_M4=$ac_dir/$ac_word
+      ac_cv_path_M4="$ac_dir/$ac_word"
       break
     fi
   done
-  IFS=$ac_save_ifs
+  IFS="$ac_save_ifs"
   ;;
 esac
 fi
-M4=$ac_cv_path_M4
+M4="$ac_cv_path_M4"
 if test -n "$M4"; then
-  echo "configure:852: result: $M4" >&5
-echo "${ECHO_T}$M4" >&6
+  echo "$ECHO_T""$M4" 1>&6
 else
-  echo "configure:855: result: no" >&5
-echo "${ECHO_T}no" >&6
+  echo "$ECHO_T""no" 1>&6
 fi
 
 test -n "$M4" && break
 done
 test -n "$M4" || M4="m4"
 
-echo "configure:861: checking whether m4 supports frozen files" >&5
-echo $ECHO_N "checking whether m4 supports frozen files... $ECHO_C" >&6
+echo $ECHO_N "checking whether m4 supports frozen files... $ECHO_C" 1>&6
+echo "configure:785: checking whether m4 supports frozen files" 1>&5
 if test "${ac_cv_prog_gnu_m4+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
   ac_cv_prog_gnu_m4=no
 if test x"$M4" != x; then
@@ -976,25 +887,24 @@ if test x"$M4" != x; then
   esac
 fi
 fi
-echo "configure:873: result: $ac_cv_prog_gnu_m4" >&5
-echo "${ECHO_T}$ac_cv_prog_gnu_m4" >&6
+echo "$ECHO_T""$ac_cv_prog_gnu_m4" 1>&6
 if test x"$ac_cv_prog_gnu_m4" != xyes; then
-  { echo "configure: error: GNU m4 1.4 is required" >&2; exit 1; }
+  { echo "configure: error: GNU m4 1.4 is required" 1>&2; exit 1; }
 fi
 
 for ac_prog in mawk gawk nawk awk
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "configure:882: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+echo $ECHO_N "checking for $ac_word... $ECHO_C" 1>&6
+echo "configure:805: checking for $ac_word" 1>&5
 if test "${ac_cv_prog_AWK+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
   if test -n "$AWK"; then
   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 else
-  for ac_path in `ac_save_ifs=$IFS; IFS=':'
+  for ac_path in `IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
 ac_dummy="$PATH"
 for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
@@ -1002,79 +912,73 @@ for ac_dir in $ac_dummy; do
     echo "$ac_dir/$ac_word"
   fi
 done
-IFS=$ac_save_ifs
+IFS="$ac_save_ifs"
 `; do
     ac_cv_prog_AWK="$ac_prog"
     break
   done
 fi
 fi
-AWK=$ac_cv_prog_AWK
+AWK="$ac_cv_prog_AWK"
 if test -n "$AWK"; then
-  echo "configure:907: result: $AWK" >&5
-echo "${ECHO_T}$AWK" >&6
+  echo "$ECHO_T""$AWK" 1>&6
 else
-  echo "configure:910: result: no" >&5
-echo "${ECHO_T}no" >&6
+  echo "$ECHO_T""no" 1>&6
 fi
 
 test -n "$AWK" && break
 done
 
-echo "configure:915: checking for working help2man" >&5
-echo $ECHO_N "checking for working help2man... $ECHO_C" >&6
+echo $ECHO_N "checking for working help2man... $ECHO_C" 1>&6
+echo "configure:836: checking for working help2man" 1>&5
 # Run test in a subshell; some versions of sh will print an error if
 # an executable is not found, even if stderr is redirected.
 # Redirect stdin to placate older versions of autoconf.  Sigh.
 if (help2man --version) < /dev/null > /dev/null 2>&1; then
    HELP2MAN=help2man
-   echo "configure:922: result: found" >&5
-echo "${ECHO_T}found" >&6
+   echo "$ECHO_T""found" 1>&6
 else
    HELP2MAN="\${SHELL} \${top_srcdir}/missing help2man"
-   echo "configure:926: result: missing" >&5
-echo "${ECHO_T}missing" >&6
+   echo "$ECHO_T""missing" 1>&6
 fi
 
 # Extract the first word of "perl", so it can be a program name with args.
 set dummy perl; ac_word=$2
-echo "configure:931: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+echo $ECHO_N "checking for $ac_word... $ECHO_C" 1>&6
+echo "configure:850: checking for $ac_word" 1>&5
 if test "${ac_cv_path_PERL+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
   case "$PERL" in
-  [\\/]* | ?:[\\/]*)
+  /\\* | ?:/\\*)
   ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
   ;;
   *)
-  ac_save_ifs=$IFS; IFS=':'
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
   ac_dummy="$PATH"
   for ac_dir in $ac_dummy; do
     test -z "$ac_dir" && ac_dir=.
     if test -f "$ac_dir/$ac_word"; then
-      ac_cv_path_PERL=$ac_dir/$ac_word
+      ac_cv_path_PERL="$ac_dir/$ac_word"
       break
     fi
   done
-  IFS=$ac_save_ifs
+  IFS="$ac_save_ifs"
   test -z "$ac_cv_path_PERL" && ac_cv_path_PERL="no"
   ;;
 esac
 fi
-PERL=$ac_cv_path_PERL
+PERL="$ac_cv_path_PERL"
 if test -n "$PERL"; then
-  echo "configure:957: result: $PERL" >&5
-echo "${ECHO_T}$PERL" >&6
+  echo "$ECHO_T""$PERL" 1>&6
 else
-  echo "configure:960: result: no" >&5
-echo "${ECHO_T}no" >&6
+  echo "$ECHO_T""no" 1>&6
 fi
 
 if test "$PERL" != no; then
   PERLSCRIPTS=autoscan
 else
-  echo "configure: warning: autoscan will not be built since perl is not found" >&2
+  echo "configure: warning: autoscan will not be built since perl is not found" 1>&2
 fi
 
 # Find a good install program.  We prefer a C program (faster),
@@ -1088,13 +992,13 @@ fi
 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
-echo "configure:979: checking for a BSD compatible install" >&5
-echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" >&6
+echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" 1>&6
+echo "configure:896: checking for a BSD compatible install" 1>&5
 if test -z "$INSTALL"; then
 if test "${ac_cv_path_install+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  echo $ECHO_N "(cached) $ECHO_C" 1>&6
 else
-    ac_save_IFS=$IFS; IFS=':'
+    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS=":"
   for ac_dir in $PATH; do
     # Account for people who put trailing slashes in PATH elements.
     case "$ac_dir/" in
@@ -1122,21 +1026,20 @@ else
       ;;
     esac
   done
-  IFS=$ac_save_IFS
+  IFS="$ac_save_IFS"
 
 fi
   if test "${ac_cv_path_install+set}" = set; then
-    INSTALL=$ac_cv_path_install
+    INSTALL="$ac_cv_path_install"
   else
     # As a last resort, use the slow shell script.  We don't cache a
     # path for INSTALL within a source directory, because that will
     # break other packages using the cache if that directory is
     # removed, or if the path is relative.
-    INSTALL=$ac_install_sh
+    INSTALL="$ac_install_sh"
   fi
 fi
-echo "configure:1025: result: $INSTALL" >&5
-echo "${ECHO_T}$INSTALL" >&6
+echo "$ECHO_T""$INSTALL" 1>&6
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 # It thinks the first close brace ends the variable substitution.
@@ -1173,32 +1076,30 @@ EOF
 # So, don't put newlines in cache variables' values.
 # Ultrix sh set writes to stderr and can't be redirected directly,
 # and sets the high bit in the cache file unless we assign to the vars.
-{
-  (set) 2>&1 |
-    case `(ac_space=' '; set | grep ac_space) 2>&1` in
-    *ac_space=\ *)
-      # `set' does not quote correctly, so add quotes (double-quote substitution
-      # turns \\\\ into \\, and sed turns \\ into \).
-      sed -n \
-    	-e "s/'/'\\\\''/g" \
-    	-e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1='\\2'/p"
-      ;;
-    *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
-      sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\2/p'
-      ;;
-    esac;
-} |
-  sed -e 's/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/' >>confcache
+(set) 2>&1 |
+  case `(ac_space=' '; set | grep ac_space) 2>&1` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >>confcache
 if cmp -s $cache_file confcache; then :; else
   if test -w $cache_file; then
-    test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
+    echo "updating cache $cache_file"
     cat confcache >$cache_file
   else
     echo "not updating unwritable cache $cache_file"
   fi
 fi
 rm -f confcache
+
 trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
 
 test "x$prefix" = xNONE && prefix=$ac_default_prefix
@@ -1219,7 +1120,7 @@ fi
 # If the first sed substitution is executed (which looks for macros that
 # take arguments), then we branch to the cleanup section.  Otherwise,
 # look for a macro that doesn't take arguments.
-cat >confdef2opt.sed <<\EOF
+cat >conftest.defs <<\EOF
 s%^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	(][^ 	(]*([^)]*)\)[ 	]*\(.*\)%-D\1=\2%g
 t cleanup
 s%^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	][^ 	]*\)[ 	]*\(.*\)%-D\1=\2%g
@@ -1236,36 +1137,8 @@ EOF
 # platform that uses two characters for line-breaks (e.g., DOS), tr
 # would break.
 ac_LF_and_DOT=`echo; echo .`
-DEFS=`sed -f confdef2opt.sed confdefs.h | tr "$ac_LF_and_DOT" ' .'`
-rm -f confdef2opt.sed
-
-# Save into config.log some information that might help in debugging.
-echo >&5
-echo "Cache variables:" >&5
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, don't put newlines in cache variables' values.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-{
-  (set) 2>&1 |
-    case `(ac_space=' '; set | grep ac_space) 2>&1` in
-    *ac_space=\ *)
-      # `set' does not quote correctly, so add quotes (double-quote substitution
-      # turns \\\\ into \\, and sed turns \\ into \).
-      sed -n \
-    	-e "s/'/'\\\\''/g" \
-    	-e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1='\\2'/p"
-      ;;
-    *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
-      sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\2/p'
-      ;;
-    esac;
-} | sed -e 's/^/| /' >&5
-echo >&5
-echo "confdefs.h:" >&5
-cat confdefs.h | sed -e 's/^/| /' >&5
+DEFS=`sed -f conftest.defs confdefs.h | tr "$ac_LF_and_DOT" ' .'`
+rm -f conftest.defs
 
 : ${CONFIG_STATUS=./config.status}
 trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
@@ -1274,64 +1147,57 @@ cat >$CONFIG_STATUS <<EOF
 #! /bin/sh
 # Generated automatically by configure.
 # Run this file to recreate the current configuration.
+# This directory was configured as follows,
+# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+#
+# $0 $ac_configure_args
+#
 # Compiler output produced by configure, useful for debugging
 # configure, is in ./config.log if it exists.
 
-configure=$0
-configure_args=$ac_configure_args
-debug=false
-EOF
-
-cat >>$CONFIG_STATUS <<\EOF
-me=`echo "$0" | sed -e 's,.*/,,'`
-SHELL=${CONFIG_SHELL-/bin/sh}
-
 # Files that config.status was made for.
-config_files="\
+config_files="\\
   acversion.m4 Makefile m4/Makefile man/Makefile doc/Makefile tests/Makefile
   tests/atconfig"
 
-ac_cs_usage="\
-\`$me' instantiates files from templates according to the
+ac_cs_usage="\\
+\\\`$CONFIG_STATUS' instantiates files from templates according to the
 current configuration.
 
-Usage: $0 [OPTIONS] FILE...
+Usage: $CONFIG_STATUS [OPTIONS] FILE...
 
-  -h, --help       print this help, then exit
-  -V, --version    print version number, then exit
-  -d, --debug      don't remove temporary files
-      --recheck    update $me by reconfiguring in the same conditions
+  --recheck    Update $CONFIG_STATUS by reconfiguring in the same conditions
+  --version    Print the version of Autoconf and exit
+  --help       Display this help and exit
   --file=FILE[:TEMPLATE]
-                   instantiate the configuration file FILE
+               Instantiate the configuration file FILE
 
 Configuration files:
-$config_files
+\$config_files
 
 Report bugs to <bug-autoconf@gnu.org>."
-EOF
 
-cat >>$CONFIG_STATUS <<EOF
 ac_cs_version="\\
 $CONFIG_STATUS generated by autoconf version 2.14a.
 Configured on host `(hostname || uname -n) 2>/dev/null | sed 1q` by
-  $configure $configure_arg"
+  `echo "$0 $ac_configure_args" | sed 's/[\\"\`\$]/\\\\&/g'`"
 
+# Root of the tmp file names.  Use pid to allow concurrent executions.
+ac_cs_root=cs\$\$
 ac_given_srcdir=$srcdir
 ac_given_INSTALL="$INSTALL"
-EOF
 
-cat >>$CONFIG_STATUS <<\EOF
 # If no file are specified by the user, then we need to provide default
 # value.  By we need to know if files were specified by the user.
 ac_need_defaults=:
-while test $# != 0
+while test \$# != 0
 do
-  case "$1" in
+  case "\$1" in
   --*=*)
-    ac_option=`echo "$1" | sed -e 's/=.*//'`
-    ac_optarg=`echo "$1" | sed -e 's/[^=]*=//'`
+    ac_option=\`echo "\$1" | sed -e 's/=.*//'\`
+    ac_optarg=\`echo "\$1" | sed -e 's/[^=]*=//'\`
     shift
-    set dummy "\$ac_option" "$ac_optarg" ${1+"$@"}
+    set dummy "\$ac_option" "\$ac_optarg" \${1+"\$@"}
     shift
     ;;
   -*);;
@@ -1340,44 +1206,42 @@ do
      ac_need_defaults=false;;
   esac
 
-  case "$1" in
+  case "\$1" in
 
   # Handling of the options.
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
-    echo "running $SHELL $configure $configure_args --no-create --no-recursion"
-    exec $SHELL $configure $configure_args --no-create --no-recursion ;;
-  --version | --vers* | -V )
-    echo "$ac_cs_version"; exit 0 ;;
+    echo "running \${CONFIG_SHELL-/bin/sh} $0 `echo "$ac_configure_args" | sed 's/[\\"\`\$]/\\\\&/g'` --no-create --no-recursion"
+    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
+  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
+    echo "\$ac_cs_version"; exit 0 ;;
   --he | --h)
     # Conflict between --help and --header
-    echo "$me: ambiguous option: $ac_option
-Try \`$me --help' for more information."; exit 1 ;;
-  --help | --hel | -h )
-    echo "$ac_cs_usage"; exit 0 ;;
-  --debug | --d* | -d )
-    debug=:; shift ;;
+    echo "$CONFIG_STATUS: ambiguous option: \$ac_option
+Try \\\`$CONFIG_STATUS --help' for more information."; exit 1 ;;
+  -help | --help | --hel )
+    echo "\$ac_cs_usage"; exit 0 ;;
   --file | --fil | --fi | --f )
     shift
-    CONFIG_FILES="$CONFIG_FILES $1"
+    CONFIG_FILES="\$CONFIG_FILES \$1"
     ac_need_defaults=false;;
   --header | --heade | --head | --hea )
     shift
-    CONFIG_HEADERS="$CONFIG_HEADERS $1"
+    CONFIG_HEADERS="\$CONFIG_FILES \$1"
     ac_need_defaults=false;;
 
   # Handling of arguments.
-  'acversion.m4' ) CONFIG_FILES="$CONFIG_FILES acversion.m4" ;;
-  'Makefile' ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
-  'm4/Makefile' ) CONFIG_FILES="$CONFIG_FILES m4/Makefile" ;;
-  'man/Makefile' ) CONFIG_FILES="$CONFIG_FILES man/Makefile" ;;
-  'doc/Makefile' ) CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
-  'tests/Makefile' ) CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
-  'tests/atconfig' ) CONFIG_FILES="$CONFIG_FILES tests/atconfig" ;;
+  'acversion.m4' ) CONFIG_FILES="\$CONFIG_FILES acversion.m4" ;;
+  'Makefile' ) CONFIG_FILES="\$CONFIG_FILES Makefile" ;;
+  'm4/Makefile' ) CONFIG_FILES="\$CONFIG_FILES m4/Makefile" ;;
+  'man/Makefile' ) CONFIG_FILES="\$CONFIG_FILES man/Makefile" ;;
+  'doc/Makefile' ) CONFIG_FILES="\$CONFIG_FILES doc/Makefile" ;;
+  'tests/Makefile' ) CONFIG_FILES="\$CONFIG_FILES tests/Makefile" ;;
+  'tests/atconfig' ) CONFIG_FILES="\$CONFIG_FILES tests/atconfig" ;;
 
   # This is an error.
-  -*) echo "$me: unrecognized option: $1
-Try \`$me --help' for more information."; exit 1 ;;
-  *) echo "$me: invalid argument: $1"; exit 1 ;;
+  -*) echo "$CONFIG_STATUS: unrecognized option: \$1
+Try \\\`$CONFIG_STATUS --help' for more information."; exit 1 ;;
+  *) echo "$CONFIG_STATUS: invalid argument: \$1"; exit 1 ;;
   esac
   shift
 done
@@ -1391,26 +1255,15 @@ if $ac_need_defaults; then
   : ${CONFIG_FILES=$config_files}
 fi
 
-# Create a temporary directory, and hook for its removal unless debugging.
-$debug ||
-{
-  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
-  trap 'exit $?' 1 2 13 15
-}
-
-# Create a (secure) tmp directory for tmp files.
-: ${TMPDIR=/tmp}
-{
-  tmp=`(umask 077 && mktemp -d -q "$TMPDIR/csXXXXXX") 2>/dev/null` &&
-  test -n "$tmp"
-}  ||
-{
-  tmp=$TMPDIR/cs$$-$RANDOM && (umask 077 && mkdir $tmp)
-} ||
-{
-   echo "$me: cannot create a temporary directory in $TMPDIR" >&2
-   exit 1;
-}
+# Trap to remove the temp files.
+trap 'rm -fr $ac_cs_root*; exit 1' 1 2 15
+
+EOF
+
+cat >>$CONFIG_STATUS <<EOF
+#
+# INIT-COMMANDS section.
+#
 
 EOF
 
@@ -1425,8 +1278,18 @@ cat >>$CONFIG_STATUS <<EOF
 if test -n "\$CONFIG_FILES"; then
   # Protect against being on the right side of a sed subst in config.status.
   sed 's/%@/@@/; s/@%/@@/; s/%;t t\$/@;t t/; /@;t t\$/s/[\\\\&%]/\\\\&/g;
-   s/@@/%@/; s/@@/@%/; s/@;t t\$/%;t t/' >\$tmp/subs.sed <<\\CEOF
+   s/@@/%@/; s/@@/@%/; s/@;t t\$/%;t t/' >\$ac_cs_root.subs <<\\CEOF
+s%@ECHO_C@%$ECHO_C%;t t
+s%@ECHO_N@%$ECHO_N%;t t
+s%@ECHO_T@%$ECHO_T%;t t
 s%@SHELL@%$SHELL%;t t
+s%@CFLAGS@%$CFLAGS%;t t
+s%@CPPFLAGS@%$CPPFLAGS%;t t
+s%@CXXFLAGS@%$CXXFLAGS%;t t
+s%@FFLAGS@%$FFLAGS%;t t
+s%@DEFS@%$DEFS%;t t
+s%@LDFLAGS@%$LDFLAGS%;t t
+s%@LIBS@%$LIBS%;t t
 s%@exec_prefix@%$exec_prefix%;t t
 s%@prefix@%$prefix%;t t
 s%@program_transform_name@%$program_transform_name%;t t
@@ -1442,16 +1305,6 @@ s%@includedir@%$includedir%;t t
 s%@oldincludedir@%$oldincludedir%;t t
 s%@infodir@%$infodir%;t t
 s%@mandir@%$mandir%;t t
-s%@ECHO_C@%$ECHO_C%;t t
-s%@ECHO_N@%$ECHO_N%;t t
-s%@ECHO_T@%$ECHO_T%;t t
-s%@CFLAGS@%$CFLAGS%;t t
-s%@CPPFLAGS@%$CPPFLAGS%;t t
-s%@CXXFLAGS@%$CXXFLAGS%;t t
-s%@FFLAGS@%$FFLAGS%;t t
-s%@DEFS@%$DEFS%;t t
-s%@LDFLAGS@%$LDFLAGS%;t t
-s%@LIBS@%$LIBS%;t t
 s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%;t t
 s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%;t t
 s%@INSTALL_DATA@%$INSTALL_DATA%;t t
@@ -1482,26 +1335,27 @@ EOF
   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=
+  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
+      sed "1,${ac_beg}d; ${ac_end}q" $ac_cs_root.subs >$ac_cs_root.sfrag
     else
-      sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+      sed "${ac_end}q" $ac_cs_root.subs >$ac_cs_root.sfrag
     fi
-    if test ! -s $tmp/subs.frag; then
+    if test ! -s $ac_cs_root.sfrag; then
       ac_more_lines=false
+      rm -f $ac_cs_root.sfrag
     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
+  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $ac_cs_root.sfrag) >$ac_cs_root.s$ac_sed_frag
       if test -z "$ac_sed_cmds"; then
-  	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+  	ac_sed_cmds="sed -f $ac_cs_root.s$ac_sed_frag"
       else
-  	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+  	ac_sed_cmds="$ac_sed_cmds | sed -f $ac_cs_root.s$ac_sed_frag"
       fi
       ac_sed_frag=`expr $ac_sed_frag + 1`
       ac_beg=$ac_end
@@ -1515,12 +1369,12 @@ fi # test -n "$CONFIG_FILES"
 
 EOF
 cat >>$CONFIG_STATUS <<\EOF
-for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
+for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
   # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case "$ac_file" in
   *:*) ac_file_in=`echo "$ac_file" | sed 's%[^:]*:%%'`
        ac_file=`echo "$ac_file" | sed 's%:.*%%'` ;;
-  *) ac_file_in=$ac_file.in ;;
+  *) ac_file_in="${ac_file}.in" ;;
   esac
 
   # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
@@ -1541,17 +1395,17 @@ for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
   .)  srcdir=.
       if test -z "$ac_dots"; then top_srcdir=.
       else top_srcdir=`echo $ac_dots | sed 's%/$%%'`; fi ;;
-  [\\/]* | ?:[\\/]* )
-      srcdir=$ac_given_srcdir$ac_dir_suffix;
+  /\\* | ?:/\\* )
+      srcdir="$ac_given_srcdir$ac_dir_suffix";
       top_srcdir=$ac_given_srcdir ;;
   *) # Relative path.
-    srcdir=$ac_dots$ac_given_srcdir$ac_dir_suffix
-    top_srcdir=$ac_dots$ac_given_srcdir ;;
+    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
+    top_srcdir="$ac_dots$ac_given_srcdir" ;;
   esac
 
   case "$ac_given_INSTALL" in
-  [\\/$]* | ?:[\\/]* ) INSTALL=$ac_given_INSTALL ;;
-  *) INSTALL=$ac_dots$ac_given_INSTALL ;;
+  [/\\$]* | ?:[/\\]* ) INSTALL="$ac_given_INSTALL" ;;
+  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
   esac
 
   echo creating "$ac_file"
@@ -1571,7 +1425,7 @@ for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
   for ac_file_input in $ac_file_inputs;
   do
     test -f "$ac_file_input" ||
-        { echo "configure: error: cannot find input file \`$ac_file_input'" >&2; exit 1; }
+        { echo "configure: error: cannot find input file \`$ac_file_input'" 1>&2; exit 1; }
   done
 EOF
 cat >>$CONFIG_STATUS <<EOF
@@ -1586,14 +1440,19 @@ s%@configure_input@%$configure_input%;t t
 s%@srcdir@%$srcdir%;t t
 s%@top_srcdir@%$top_srcdir%;t t
 s%@INSTALL@%$INSTALL%;t t
-" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
-  mv $tmp/out $ac_file
+" $ac_file_inputs | (eval "$ac_sed_cmds") >$ac_cs_root.out
+  mv $ac_cs_root.out $ac_file
 
-done
+fi; done
+rm -f $ac_cs_root.s*
 EOF
 
 cat >>$CONFIG_STATUS <<\EOF
 
+#
+# CONFIG_COMMANDS section.
+#
+
 exit 0
 EOF
 chmod +x $CONFIG_STATUS
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index cc92d434d..78529bd1b 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -670,7 +670,7 @@ has continuously been misunderstood...  The thumb rule is that
 i.e., expect one level of quotes to be lost.  For instance
 
 @example
-AC_COMPILE_IFELSE([char b[10];],, exit 1)
+AC_COMPILE_IFELSE([char b[10];],, (exit 1); exit)
 @end example
 
 @noindent
@@ -683,7 +683,7 @@ argument to be understood as a literal, and therefore it must be quoted
 twice:
 
 @example
-AC_COMPILE_IFELSE([[char b[10];]],, exit 1)
+AC_COMPILE_IFELSE([[char b[10];]],, (exit 1); exit)
 @end example
 
 @noindent
@@ -4516,6 +4516,7 @@ well; for example, don't rely on @code{ln} having a @samp{-f} option or
 * Testing Values and Files::    Checking strings and files
 * Shell Substitutions::         Test and assign
 * Limitations of Usual Tools::  Portable use of portable tools
+* Exiting from Shell Scripts::  How to exit from an autoconf shell script
 @end menu
 
 @node Testing Values and Files, Shell Substitutions, Portable Shell, Portable Shell
@@ -4577,7 +4578,7 @@ otherwise some shells, such as on Digital Unix V 5.0, will die because
 of a @emph{bad substitution}.
 
 
-@node Limitations of Usual Tools,  , Shell Substitutions, Portable Shell
+@node Limitations of Usual Tools, Exiting from Shell Scripts, Shell Substitutions, Portable Shell
 @subsection Limitations of Usual Tools
 
 The small set of tools you can expect to find on any machine can still
@@ -4621,6 +4622,21 @@ Alternation, @samp{\|}, is not portable.
 @end table
 
 
+@node Exiting from Shell Scripts, , Limitations of Usual Tools, Portable Shell
+@subsection Exiting from Shell Scripts
+
+Shell scripts generated by @command{autoconf} use a trap to clean up
+before exiting.  If the last shell command exited with nonzero status,
+the trap also exits with nonzero status so that the invoker of autoconf
+can tell that an error occurred.
+
+Unfortunately, in some shells, such as Solaris 8 @command{sh}, an exit
+trap ignores the @code{exit} command's status.  In these shells, a trap
+cannot determine whether it was invoked by plain @code{exit} or by
+@code{exit 1}.  To work around this problem, use @code{(exit 1); exit}
+instead of @samp{exit 1} to exit an autoconf script with status 1.
+
+
 @node Multiple Cases, Language Choice, Portable Shell, Writing Tests
 @section Multiple Cases
 
@@ -5047,8 +5063,8 @@ AC_CHECK_LIB(socket, connect)
 AC_CACHE_SAVE
 
 # Might abort...
-AM_PATH_GTK(1.0.2,, exit 1)
-AM_PATH_GTKMM(0.9.5,, exit 1)
+AM_PATH_GTK(1.0.2,, (exit 1); exit)
+AM_PATH_GTKMM(0.9.5,, (exit 1); exit)
 @r{ ... AC_OUTPUT, etc. ...}
 @end example