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[Emacs-diffs] /srv/bzr/emacs/trunk r102763: Use __builtin_unwind_init if


From: Andreas Schwab
Subject: [Emacs-diffs] /srv/bzr/emacs/trunk r102763: Use __builtin_unwind_init if available
Date: Wed, 05 Jan 2011 14:09:07 +0100
User-agent: Bazaar (2.0.3)

------------------------------------------------------------
revno: 102763
committer: Andreas Schwab <address@hidden>
branch nick: emacs
timestamp: Wed 2011-01-05 14:09:07 +0100
message:
  Use __builtin_unwind_init if available
  
  * configure.in: Check for __builtin_unwind_init.
  
  * src/alloc.c (mark_stack): Use __builtin_unwind_init if available.
modified:
  ChangeLog
  configure
  configure.in
  src/ChangeLog
  src/alloc.c
  src/config.in
=== modified file 'ChangeLog'
--- a/ChangeLog 2011-01-05 07:10:47 +0000
+++ b/ChangeLog 2011-01-05 13:09:07 +0000
@@ -1,3 +1,7 @@
+2011-01-05  Andreas Schwab  <address@hidden>
+
+       * configure.in: Check for __builtin_unwind_init.
+
 2011-01-05  Glenn Morris  <address@hidden>
 
        * configure.in (HAVE_MAKEINFO): New output variable.

=== modified file 'configure'
--- a/configure 2011-01-05 07:11:57 +0000
+++ b/configure 2011-01-05 13:09:07 +0000
@@ -1,11 +1,11 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.65 for emacs 24.0.50.
+# Generated by GNU Autoconf 2.68 for emacs 24.0.50.
 #
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
-# Inc.
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+# Foundation, Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -89,6 +89,7 @@
 IFS=" ""       $as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
 case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -214,11 +215,18 @@
   # We cannot yet assume a decent shell, so we have to provide a
        # neutralization value for shells without unset; and this also
        # works around shells that cannot unset nonexistent variables.
+       # Preserve -v and -x to the replacement shell.
        BASH_ENV=/dev/null
        ENV=/dev/null
        (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
        export CONFIG_SHELL
-       exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
+       case $- in # ((((
+         *v*x* | *x*v* ) as_opts=-vx ;;
+         *v* ) as_opts=-v ;;
+         *x* ) as_opts=-x ;;
+         * ) as_opts= ;;
+       esac
+       exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
 fi
 
     if test x$as_have_required = xno; then :
@@ -316,7 +324,7 @@
       test -d "$as_dir" && break
     done
     test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
 
 
 } # as_fn_mkdir_p
@@ -356,19 +364,19 @@
 fi # as_fn_arith
 
 
-# as_fn_error ERROR [LINENO LOG_FD]
-# ---------------------------------
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
 # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
 # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with status $?, using 1 if that was 0.
+# script with STATUS, using 1 if that was 0.
 as_fn_error ()
 {
-  as_status=$?; test $as_status -eq 0 && as_status=1
-  if test "$3"; then
-    as_lineno=${as_lineno-"$2"} 
as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} 
as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $1" >&2
+  $as_echo "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -530,7 +538,7 @@
 exec 6>&1
 
 # Name of the host.
-# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
 # so uname gets run too.
 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
 
@@ -914,8 +922,9 @@
   fi
 
   case $ac_option in
-  *=*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
-  *)   ac_optarg=yes ;;
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
   esac
 
   # Accept the important Cygnus configure options, so we can diagnose typos.
@@ -960,7 +969,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -986,7 +995,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1190,7 +1199,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1206,7 +1215,7 @@
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1236,8 +1245,8 @@
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information."
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
     ;;
 
   *=*)
@@ -1245,7 +1254,7 @@
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
@@ -1255,7 +1264,7 @@
     $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
       $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
-    : ${build_alias=$ac_option} ${host_alias=$ac_option} 
${target_alias=$ac_option}
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} 
${target_alias=$ac_option}"
     ;;
 
   esac
@@ -1263,13 +1272,13 @@
 
 if test -n "$ac_prev"; then
   ac_option=--`echo $ac_prev | sed 's/_/-/g'`
-  as_fn_error "missing argument to $ac_option"
+  as_fn_error $? "missing argument to $ac_option"
 fi
 
 if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
-    fatal) as_fn_error "unrecognized options: $ac_unrecognized_opts" ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
     *)     $as_echo "$as_me: WARNING: unrecognized options: 
$ac_unrecognized_opts" >&2 ;;
   esac
 fi
@@ -1292,7 +1301,7 @@
     [\\/$]* | ?:[\\/]* )  continue;;
     NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
   esac
-  as_fn_error "expected an absolute directory name for --$ac_var: $ac_val"
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
 # There might be people who depend on the old broken behavior: `$host'
@@ -1306,8 +1315,8 @@
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
-    $as_echo "$as_me: WARNING: If you wanted to set the --build type, don't 
use --host.
-    If a cross compiler is detected then cross compile mode will be used." >&2
+    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't 
use --host.
+    If a cross compiler is detected then cross compile mode will be used" >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
   fi
@@ -1322,9 +1331,9 @@
 ac_pwd=`pwd` && test -n "$ac_pwd" &&
 ac_ls_di=`ls -di .` &&
 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
-  as_fn_error "working directory cannot be determined"
+  as_fn_error $? "working directory cannot be determined"
 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
-  as_fn_error "pwd does not report name of working directory"
+  as_fn_error $? "pwd does not report name of working directory"
 
 
 # Find the source files, if location was not specified.
@@ -1363,11 +1372,11 @@
 fi
 if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
-  as_fn_error "cannot find sources ($ac_unique_file) in $srcdir"
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
 ac_abs_confdir=`(
-       cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error "$ac_msg"
+       cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
        pwd)`
 # When building in place, set srcdir=.
 if test "$ac_abs_confdir" = "$ac_pwd"; then
@@ -1407,7 +1416,7 @@
       --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
+  -q, --quiet, --silent   do not print \`checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
   -C, --config-cache      alias for \`--cache-file=config.cache'
   -n, --no-create         do not create output files
@@ -1627,9 +1636,9 @@
 if $ac_init_version; then
   cat <<\_ACEOF
 emacs configure 24.0.50
-generated by GNU Autoconf 2.65
+generated by GNU Autoconf 2.68
 
-Copyright (C) 2009 Free Software Foundation, Inc.
+Copyright (C) 2010 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1673,7 +1682,7 @@
 
        ac_retval=1
 fi
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_compile
@@ -1719,7 +1728,7 @@
   # interfere with the next link command; also delete a directory that is
   # left behind by Apple's compiler.  We do this before executing the actions.
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_link
@@ -1745,7 +1754,7 @@
     mv -f conftest.er1 conftest.err
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } >/dev/null && {
+  test $ac_status = 0; } > conftest.i && {
         test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
         test ! -s conftest.err
        }; then :
@@ -1756,7 +1765,7 @@
 
     ac_retval=1
 fi
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_cpp
@@ -1769,10 +1778,10 @@
 ac_fn_c_check_header_mongrel ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  if eval \${$3+:} false; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 fi
 eval ac_res=\$$3
@@ -1808,7 +1817,7 @@
 else
   ac_header_preproc=no
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
 $as_echo "$ac_header_preproc" >&6; }
 
@@ -1835,7 +1844,7 @@
 esac
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   eval "$3=\$ac_header_compiler"
@@ -1844,7 +1853,7 @@
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
 fi
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_mongrel
 
@@ -1885,7 +1894,7 @@
        ac_retval=$ac_status
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_run
@@ -1899,7 +1908,7 @@
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1917,19 +1926,22 @@
 eval ac_res=\$$3
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_compile
 
-# ac_fn_c_check_decl LINENO SYMBOL VAR
-# ------------------------------------
-# Tests whether SYMBOL is declared, setting cache variable VAR accordingly.
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
 ac_fn_c_check_decl ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $2 is declared" >&5
-$as_echo_n "checking whether $2 is declared... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is 
declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1938,8 +1950,12 @@
 int
 main ()
 {
-#ifndef $2
-  (void) $2;
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
 #endif
 
   ;
@@ -1956,7 +1972,7 @@
 eval ac_res=\$$3
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_decl
 
@@ -1968,7 +1984,7 @@
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1980,12 +1996,12 @@
 else
   eval "$3=no"
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 fi
 eval ac_res=\$$3
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_header_preproc
 
@@ -1998,7 +2014,7 @@
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
 $as_echo_n "checking for $2.$3... " >&6; }
-if { as_var=$4; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$4+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2042,7 +2058,7 @@
 eval ac_res=\$$4
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_member
 
@@ -2054,7 +2070,7 @@
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2109,7 +2125,7 @@
 eval ac_res=\$$3
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
 
@@ -2122,7 +2138,7 @@
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   eval "$3=no"
@@ -2163,7 +2179,7 @@
 eval ac_res=\$$3
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset 
as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_type
 cat >config.log <<_ACEOF
@@ -2171,7 +2187,7 @@
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by emacs $as_me 24.0.50, which was
-generated by GNU Autoconf 2.65.  Invocation command line was
+generated by GNU Autoconf 2.68.  Invocation command line was
 
   $ $0 $@
 
@@ -2281,11 +2297,9 @@
   {
     echo
 
-    cat <<\_ASBOX
-## ---------------- ##
+    $as_echo "## ---------------- ##
 ## Cache variables. ##
-## ---------------- ##
-_ASBOX
+## ---------------- ##"
     echo
     # The following way of writing the cache mishandles newlines in values,
 (
@@ -2319,11 +2333,9 @@
 )
     echo
 
-    cat <<\_ASBOX
-## ----------------- ##
+    $as_echo "## ----------------- ##
 ## Output variables. ##
-## ----------------- ##
-_ASBOX
+## ----------------- ##"
     echo
     for ac_var in $ac_subst_vars
     do
@@ -2336,11 +2348,9 @@
     echo
 
     if test -n "$ac_subst_files"; then
-      cat <<\_ASBOX
-## ------------------- ##
+      $as_echo "## ------------------- ##
 ## File substitutions. ##
-## ------------------- ##
-_ASBOX
+## ------------------- ##"
       echo
       for ac_var in $ac_subst_files
       do
@@ -2354,11 +2364,9 @@
     fi
 
     if test -s confdefs.h; then
-      cat <<\_ASBOX
-## ----------- ##
+      $as_echo "## ----------- ##
 ## confdefs.h. ##
-## ----------- ##
-_ASBOX
+## ----------- ##"
       echo
       cat confdefs.h
       echo
@@ -2413,7 +2421,12 @@
 ac_site_file1=NONE
 ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  ac_site_file1=$CONFIG_SITE
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
 elif test "x$prefix" != xNONE; then
   ac_site_file1=$prefix/share/config.site
   ac_site_file2=$prefix/etc/config.site
@@ -2428,7 +2441,11 @@
     { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script 
$ac_site_file" >&5
 $as_echo "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
-    . "$ac_site_file"
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -2509,7 +2526,7 @@
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
   { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment 
can compromise the build" >&5
 $as_echo "$as_me: error: changes in the environment can compromise the build" 
>&2;}
-  as_fn_error "run \`make distclean' and/or \`rm $cache_file' and start over" 
"$LINENO" 5
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start 
over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
@@ -2681,7 +2698,7 @@
            g | gt | gtk  )     val=gtk ;;
            gtk3  )     val=gtk3 ;;
            * )
-as_fn_error "\`--with-x-toolkit=$withval' is invalid;
+as_fn_error $? "\`--with-x-toolkit=$withval' is invalid;
 this option's value should be \`yes', \`no', \`lucid', \`athena', \`motif', 
\`gtk' or
 \`gtk3'.  \`yes' and \`gtk' are synonyms. \`athena' and \`lucid' are 
synonyms." "$LINENO" 5
            ;;
@@ -2994,7 +3011,7 @@
        stringfreelist) ac_gc_check_string_free_list=1 ;;
        xmallocoverrun) ac_xmalloc_overrun=1 ;;
        conslist)       ac_gc_check_cons_list=1 ;;
-       *)      as_fn_error "unknown check category $check" "$LINENO" 5 ;;
+       *)      as_fn_error $? "unknown check category $check" "$LINENO" 5 ;;
        esac
 done
 IFS="$ac_save_IFS"
@@ -3109,16 +3126,22 @@
 
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
-  for ac_t in install-sh install.sh shtool; do
-    if test -f "$ac_dir/$ac_t"; then
-      ac_aux_dir=$ac_dir
-      ac_install_sh="$ac_aux_dir/$ac_t -c"
-      break 2
-    fi
-  done
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
 done
 if test -z "$ac_aux_dir"; then
-  as_fn_error "cannot find install-sh, install.sh, or shtool in \"$srcdir\" 
\"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" 
\"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
 fi
 
 # These three variables are undocumented and unsupported,
@@ -3132,27 +3155,27 @@
 
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 $as_echo_n "checking build system type... " >&6; }
-if test "${ac_cv_build+set}" = set; then :
+if ${ac_cv_build+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
 test "x$ac_build_alias" = x &&
-  as_fn_error "cannot guess build type; you must specify one" "$LINENO" 5
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  as_fn_error "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 
5
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" 
"$LINENO" 5
 
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 $as_echo "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
-*) as_fn_error "invalid value of canonical build" "$LINENO" 5;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
 esac
 build=$ac_cv_build
 ac_save_IFS=$IFS; IFS='-'
@@ -3170,14 +3193,14 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
 $as_echo_n "checking host system type... " >&6; }
-if test "${ac_cv_host+set}" = set; then :
+if ${ac_cv_host+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    as_fn_error "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" 
"$LINENO" 5
 fi
 
 fi
@@ -3185,7 +3208,7 @@
 $as_echo "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
-*) as_fn_error "invalid value of canonical host" "$LINENO" 5;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
 esac
 host=$ac_cv_host
 ac_save_IFS=$IFS; IFS='-'
@@ -3428,7 +3451,7 @@
 
 
 if test $unported = yes; then
-  as_fn_error "Emacs hasn't been ported to \`${canonical}' systems.
+  as_fn_error $? "Emacs hasn't been ported to \`${canonical}' systems.
 Check \`etc/MACHINES' for recognized configuration names." "$LINENO" 5
 fi
 
@@ -3456,7 +3479,7 @@
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3496,7 +3519,7 @@
 set dummy gcc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -3549,7 +3572,7 @@
 set dummy ${ac_tool_prefix}cc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3589,7 +3612,7 @@
 set dummy cc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3648,7 +3671,7 @@
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -3692,7 +3715,7 @@
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -3746,8 +3769,8 @@
 
 test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in 
\`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "no acceptable C compiler found in \$PATH
-See \`config.log' for more details." "$LINENO" 5; }
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
 $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -3861,9 +3884,8 @@
 
 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-{ as_fn_set_status 77
-as_fn_error "C compiler cannot create executables
-See \`config.log' for more details." "$LINENO" 5; }; }
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -3905,8 +3927,8 @@
 else
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." "$LINENO" 5; }
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest conftest$ac_cv_exeext
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
@@ -3963,9 +3985,9 @@
     else
        { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "cannot run C compiled programs.
+as_fn_error $? "cannot run C compiled programs.
 If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." "$LINENO" 5; }
+See \`config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
@@ -3976,7 +3998,7 @@
 ac_clean_files=$ac_clean_files_save
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" 
>&5
 $as_echo_n "checking for suffix of object files... " >&6; }
-if test "${ac_cv_objext+set}" = set; then :
+if ${ac_cv_objext+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4016,8 +4038,8 @@
 
 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." "$LINENO" 5; }
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
@@ -4027,7 +4049,7 @@
 ac_objext=$OBJEXT
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU 
C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then :
+if ${ac_cv_c_compiler_gnu+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4064,7 +4086,7 @@
 ac_save_CFLAGS=$CFLAGS
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then :
+if ${ac_cv_prog_cc_g+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
@@ -4142,7 +4164,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO 
C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then :
+if ${ac_cv_prog_cc_c89+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
@@ -4250,7 +4272,7 @@
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using a Sun 
C compiler" >&5
 $as_echo_n "checking whether we are using a Sun C compiler... " >&6; }
 
-if test "${emacs_cv_sunpro_c+set}" = set; then :
+if ${emacs_cv_sunpro_c+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4319,7 +4341,7 @@
   CPP=
 fi
 if test -z "$CPP"; then
-  if test "${ac_cv_prog_CPP+set}" = set; then :
+  if ${ac_cv_prog_CPP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
       # Double quotes because CPP needs to be expanded
@@ -4349,7 +4371,7 @@
   # Broken: fails on valid input.
 continue
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
@@ -4365,11 +4387,11 @@
 ac_preproc_ok=:
 break
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then :
   break
 fi
@@ -4408,7 +4430,7 @@
   # Broken: fails on valid input.
 continue
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
@@ -4424,18 +4446,18 @@
 ac_preproc_ok=:
 break
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then :
 
 else
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." "$LINENO" 5; }
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 ac_ext=c
@@ -4447,7 +4469,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long 
lines and -e" >&5
 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if test "${ac_cv_path_GREP+set}" = set; then :
+if ${ac_cv_path_GREP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$GREP"; then
@@ -4496,7 +4518,7 @@
   done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_GREP"; then
-    as_fn_error "no acceptable grep could be found in 
$PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    as_fn_error $? "no acceptable grep could be found in 
$PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_GREP=$GREP
@@ -4510,7 +4532,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 $as_echo_n "checking for egrep... " >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then :
+if ${ac_cv_path_EGREP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
@@ -4562,7 +4584,7 @@
   done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error "no acceptable egrep could be found in 
$PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    as_fn_error $? "no acceptable egrep could be found in 
$PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_EGREP=$EGREP
@@ -4577,7 +4599,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then :
+if ${ac_cv_header_stdc+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4694,8 +4716,7 @@
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" 
"$ac_includes_default
 "
-eval as_val=\$$as_ac_Header
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -4707,7 +4728,7 @@
 
 
   ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" 
"ac_cv_header_minix_config_h" "$ac_includes_default"
-if test "x$ac_cv_header_minix_config_h" = x""yes; then :
+if test "x$ac_cv_header_minix_config_h" = xyes; then :
   MINIX=yes
 else
   MINIX=
@@ -4729,7 +4750,7 @@
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to 
define __EXTENSIONS__" >&5
 $as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
-if test "${ac_cv_safe_to_define___extensions__+set}" = set; then :
+if ${ac_cv_safe_to_define___extensions__+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4909,7 +4930,7 @@
   CPP=
 fi
 if test -z "$CPP"; then
-  if test "${ac_cv_prog_CPP+set}" = set; then :
+  if ${ac_cv_prog_CPP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
       # Double quotes because CPP needs to be expanded
@@ -4939,7 +4960,7 @@
   # Broken: fails on valid input.
 continue
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
@@ -4955,11 +4976,11 @@
 ac_preproc_ok=:
 break
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then :
   break
 fi
@@ -4998,7 +5019,7 @@
   # Broken: fails on valid input.
 continue
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
@@ -5014,18 +5035,18 @@
 ac_preproc_ok=:
 break
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.i conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then :
 
 else
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." "$LINENO" 5; }
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 ac_ext=c
@@ -5051,7 +5072,7 @@
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible 
install" >&5
 $as_echo_n "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then :
+if ${ac_cv_path_install+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5133,7 +5154,7 @@
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_RANLIB+set}" = set; then :
+if ${ac_cv_prog_RANLIB+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$RANLIB"; then
@@ -5173,7 +5194,7 @@
 set dummy ranlib; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then :
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_RANLIB"; then
@@ -5228,7 +5249,7 @@
 ## is running in i386 mode, we can help them out.
 if test "$machine" = "amdx86-64"; then
   ac_fn_c_check_decl "$LINENO" "i386" "ac_cv_have_decl_i386" 
"$ac_includes_default"
-if test "x$ac_cv_have_decl_i386" = x""yes; then :
+if test "x$ac_cv_have_decl_i386" = xyes; then :
 
 fi
 
@@ -5243,7 +5264,7 @@
 set dummy install-info; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_INSTALL_INFO+set}" = set; then :
+if ${ac_cv_path_INSTALL_INFO+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $INSTALL_INFO in
@@ -5283,7 +5304,7 @@
 set dummy install-info; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_INSTALL_INFO+set}" = set; then :
+if ${ac_cv_path_INSTALL_INFO+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $INSTALL_INFO in
@@ -5323,7 +5344,7 @@
 set dummy install-info; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_INSTALL_INFO+set}" = set; then :
+if ${ac_cv_path_INSTALL_INFO+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $INSTALL_INFO in
@@ -5364,7 +5385,7 @@
 set dummy gzip; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_GZIP_PROG+set}" = set; then :
+if ${ac_cv_path_GZIP_PROG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $GZIP_PROG in
@@ -5407,7 +5428,7 @@
 set dummy makeinfo; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_MAKEINFO+set}" = set; then :
+if ${ac_cv_path_MAKEINFO+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $MAKEINFO in
@@ -5465,7 +5486,7 @@
   if test "x${with_makeinfo}" = "xno"; then
     HAVE_MAKEINFO=no
   elif test ! -e $srcdir/info/emacs; then
-    as_fn_error "You do not seem to have makeinfo >= 4.6, and your
+    as_fn_error $? "You do not seem to have makeinfo >= 4.6, and your
 source tree does not seem to have pre-built manuals in the \`info' directory.
 Either install a suitable version of makeinfo, or re-run configure
 with the \`--without-makeinfo' option to build without the manuals. " 
"$LINENO" 5
@@ -5612,7 +5633,7 @@
 C_SWITCH_MACHINE=
 if test "$machine" = "alpha"; then
   ac_fn_c_check_decl "$LINENO" "__ELF__" "ac_cv_have_decl___ELF__" 
"$ac_includes_default"
-if test "x$ac_cv_have_decl___ELF__" = x""yes; then :
+if test "x$ac_cv_have_decl___ELF__" = xyes; then :
 
 fi
 
@@ -5625,7 +5646,7 @@
     if test "x$GCC" = "xyes"; then
       C_SWITCH_MACHINE="-fno-common"
     else
-      as_fn_error "What gives?  Fix me if DEC Unix supports ELF now." 
"$LINENO" 5
+      as_fn_error $? "What gives?  Fix me if DEC Unix supports ELF now." 
"$LINENO" 5
     fi
   else
     UNEXEC_OBJ=unexalpha.o
@@ -5682,7 +5703,7 @@
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler 
options needed for large files" >&5
 $as_echo_n "checking for special C compiler options needed for large files... 
" >&6; }
-if test "${ac_cv_sys_largefile_CC+set}" = set; then :
+if ${ac_cv_sys_largefile_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_sys_largefile_CC=no
@@ -5733,7 +5754,7 @@
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS 
value needed for large files" >&5
 $as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " 
>&6; }
-if test "${ac_cv_sys_file_offset_bits+set}" = set; then :
+if ${ac_cv_sys_file_offset_bits+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   while :; do
@@ -5802,7 +5823,7 @@
   if test $ac_cv_sys_file_offset_bits = unknown; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value 
needed for large files" >&5
 $as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; }
-if test "${ac_cv_sys_large_files+set}" = set; then :
+if ${ac_cv_sys_large_files+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   while :; do
@@ -5903,7 +5924,7 @@
   ## Some platforms don't use any of these files, so it is not
   ## appropriate to put this test outside the if block.
   test -e $CRT_DIR/crtn.o || test -e $CRT_DIR/crt0.o || \
-    as_fn_error "crt*.o not found in specified location." "$LINENO" 5
+    as_fn_error $? "crt*.o not found in specified location." "$LINENO" 5
 
 fi
 
@@ -5958,8 +5979,7 @@
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" 
"$ac_includes_default"
-eval as_val=\$$as_ac_Header
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -5971,7 +5991,7 @@
   # Emulation library used on NetBSD.
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _oss_ioctl in 
-lossaudio" >&5
 $as_echo_n "checking for _oss_ioctl in -lossaudio... " >&6; }
-if test "${ac_cv_lib_ossaudio__oss_ioctl+set}" = set; then :
+if ${ac_cv_lib_ossaudio__oss_ioctl+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -6005,7 +6025,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_ossaudio__oss_ioctl" >&5
 $as_echo "$ac_cv_lib_ossaudio__oss_ioctl" >&6; }
-if test "x$ac_cv_lib_ossaudio__oss_ioctl" = x""yes; then :
+if test "x$ac_cv_lib_ossaudio__oss_ioctl" = xyes; then :
   LIBSOUND=-lossaudio
 else
   LIBSOUND=
@@ -6022,7 +6042,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -6150,7 +6170,7 @@
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       if test "$emacs_alsa_subdir" != yes; then
-        as_fn_error "pkg-config found alsa, but it does not compile.  See 
config.log for error messages." "$LINENO" 5
+        as_fn_error $? "pkg-config found alsa, but it does not compile.  See 
config.log for error messages." "$LINENO" 5
       fi
       ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
     fi
@@ -6185,8 +6205,7 @@
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" 
"$ac_includes_default"
-eval as_val=\$$as_ac_Header
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -6227,7 +6246,7 @@
 for ac_header in term.h
 do :
   ac_fn_c_check_header_preproc "$LINENO" "term.h" "ac_cv_header_term_h"
-if test "x$ac_cv_header_term_h" = x""yes; then :
+if test "x$ac_cv_header_term_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_TERM_H 1
 _ACEOF
@@ -6238,7 +6257,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then :
+if ${ac_cv_header_stdc+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6350,7 +6369,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and 
sys/time.h may both be included" >&5
 $as_echo_n "checking whether time.h and sys/time.h may both be included... " 
>&6; }
-if test "${ac_cv_header_time+set}" = set; then :
+if ${ac_cv_header_time+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6384,7 +6403,7 @@
 fi
 
 ac_fn_c_check_decl "$LINENO" "sys_siglist" "ac_cv_have_decl_sys_siglist" 
"$ac_includes_default"
-if test "x$ac_cv_have_decl_sys_siglist" = x""yes; then :
+if test "x$ac_cv_have_decl_sys_siglist" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
@@ -6397,7 +6416,7 @@
 if test $ac_cv_have_decl_sys_siglist != yes; then
   # For Tru64, at least:
   ac_fn_c_check_decl "$LINENO" "__sys_siglist" "ac_cv_have_decl___sys_siglist" 
"$ac_includes_default"
-if test "x$ac_cv_have_decl___sys_siglist" = x""yes; then :
+if test "x$ac_cv_have_decl___sys_siglist" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
@@ -6415,7 +6434,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sys/wait.h that is 
POSIX.1 compatible" >&5
 $as_echo_n "checking for sys/wait.h that is POSIX.1 compatible... " >&6; }
-if test "${ac_cv_header_sys_wait_h+set}" = set; then :
+if ${ac_cv_header_sys_wait_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6457,7 +6476,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct utimbuf" >&5
 $as_echo_n "checking for struct utimbuf... " >&6; }
-if test "${emacs_cv_struct_utimbuf+set}" = set; then :
+if ${emacs_cv_struct_utimbuf+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6500,7 +6519,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal 
handlers" >&5
 $as_echo_n "checking return type of signal handlers... " >&6; }
-if test "${ac_cv_type_signal+set}" = set; then :
+if ${ac_cv_type_signal+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6534,7 +6553,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for speed_t" >&5
 $as_echo_n "checking for speed_t... " >&6; }
-if test "${emacs_cv_speed_t+set}" = set; then :
+if ${emacs_cv_speed_t+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6565,7 +6584,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct timeval" >&5
 $as_echo_n "checking for struct timeval... " >&6; }
-if test "${emacs_cv_struct_timeval+set}" = set; then :
+if ${emacs_cv_struct_timeval+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6606,7 +6625,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct exception" >&5
 $as_echo_n "checking for struct exception... " >&6; }
-if test "${emacs_cv_struct_exception+set}" = set; then :
+if ${emacs_cv_struct_exception+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6639,7 +6658,7 @@
 for ac_header in sys/socket.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "sys/socket.h" 
"ac_cv_header_sys_socket_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_socket_h" = x""yes; then :
+if test "x$ac_cv_header_sys_socket_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_SYS_SOCKET_H 1
 _ACEOF
@@ -6655,7 +6674,7 @@
 #include <sys/socket.h>
 #endif
 "
-if test "x$ac_cv_header_net_if_h" = x""yes; then :
+if test "x$ac_cv_header_net_if_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_NET_IF_H 1
 _ACEOF
@@ -6667,7 +6686,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether struct tm is in 
sys/time.h or time.h" >&5
 $as_echo_n "checking whether struct tm is in sys/time.h or time.h... " >&6; }
-if test "${ac_cv_struct_tm+set}" = set; then :
+if ${ac_cv_struct_tm+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6704,7 +6723,7 @@
 #include <$ac_cv_struct_tm>
 
 "
-if test "x$ac_cv_member_struct_tm_tm_zone" = x""yes; then :
+if test "x$ac_cv_member_struct_tm_tm_zone" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_TM_TM_ZONE 1
@@ -6720,7 +6739,7 @@
 else
   ac_fn_c_check_decl "$LINENO" "tzname" "ac_cv_have_decl_tzname" "#include 
<time.h>
 "
-if test "x$ac_cv_have_decl_tzname" = x""yes; then :
+if test "x$ac_cv_have_decl_tzname" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
@@ -6732,7 +6751,7 @@
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for tzname" >&5
 $as_echo_n "checking for tzname... " >&6; }
-if test "${ac_cv_var_tzname+set}" = set; then :
+if ${ac_cv_var_tzname+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6769,7 +6788,7 @@
 
 ac_fn_c_check_member "$LINENO" "struct tm" "tm_gmtoff" 
"ac_cv_member_struct_tm_tm_gmtoff" "#include <time.h>
 "
-if test "x$ac_cv_member_struct_tm_tm_gmtoff" = x""yes; then :
+if test "x$ac_cv_member_struct_tm_tm_gmtoff" = xyes; then :
 
 $as_echo "#define HAVE_TM_GMTOFF 1" >>confdefs.h
 
@@ -6783,7 +6802,7 @@
 #include <net/if.h>
 #endif
 "
-if test "x$ac_cv_member_struct_ifreq_ifr_flags" = x""yes; then :
+if test "x$ac_cv_member_struct_ifreq_ifr_flags" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_IFREQ_IFR_FLAGS 1
@@ -6799,7 +6818,7 @@
 #include <net/if.h>
 #endif
 "
-if test "x$ac_cv_member_struct_ifreq_ifr_hwaddr" = x""yes; then :
+if test "x$ac_cv_member_struct_ifreq_ifr_hwaddr" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_IFREQ_IFR_HWADDR 1
@@ -6815,7 +6834,7 @@
 #include <net/if.h>
 #endif
 "
-if test "x$ac_cv_member_struct_ifreq_ifr_netmask" = x""yes; then :
+if test "x$ac_cv_member_struct_ifreq_ifr_netmask" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_IFREQ_IFR_NETMASK 1
@@ -6831,7 +6850,7 @@
 #include <net/if.h>
 #endif
 "
-if test "x$ac_cv_member_struct_ifreq_ifr_broadaddr" = x""yes; then :
+if test "x$ac_cv_member_struct_ifreq_ifr_broadaddr" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_IFREQ_IFR_BROADADDR 1
@@ -6847,7 +6866,7 @@
 #include <net/if.h>
 #endif
 "
-if test "x$ac_cv_member_struct_ifreq_ifr_addr" = x""yes; then :
+if test "x$ac_cv_member_struct_ifreq_ifr_addr" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_IFREQ_IFR_ADDR 1
@@ -6876,7 +6895,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working volatile" >&5
 $as_echo_n "checking for working volatile... " >&6; }
-if test "${ac_cv_c_volatile+set}" = set; then :
+if ${ac_cv_c_volatile+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6910,7 +6929,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming 
const" >&5
 $as_echo_n "checking for an ANSI C-conforming const... " >&6; }
-if test "${ac_cv_c_const+set}" = set; then :
+if ${ac_cv_c_const+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -6990,7 +7009,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for void * support" >&5
 $as_echo_n "checking for void * support... " >&6; }
-if test "${emacs_cv_void_star+set}" = set; then :
+if ${emacs_cv_void_star+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7023,7 +7042,7 @@
 
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is 
bigendian" >&5
 $as_echo_n "checking whether byte ordering is bigendian... " >&6; }
-if test "${ac_cv_c_bigendian+set}" = set; then :
+if ${ac_cv_c_bigendian+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_c_bigendian=unknown
@@ -7241,7 +7260,7 @@
 
      ;; #(
    *)
-     as_fn_error "unknown endianness
+     as_fn_error $? "unknown endianness
  presetting ac_cv_c_bigendian=no (or yes) will help" "$LINENO" 5 ;;
  esac
 
@@ -7250,7 +7269,7 @@
 $as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
 set x ${MAKE-make}
 ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
-if { as_var=ac_cv_prog_make_${ac_make}_set; eval "test \"\${$as_var+set}\" = 
set"; }; then :
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat >conftest.make <<\_ACEOF
@@ -7258,7 +7277,7 @@
 all:
        @echo '@@@%%%=$(MAKE)=@@@%%%'
 _ACEOF
-# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
 case `${MAKE-make} -f conftest.make 2>/dev/null` in
   *@@@%%%=?*=@@@%%%*)
     eval ac_cv_prog_make_${ac_make}_set=yes;;
@@ -7338,7 +7357,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long file names" >&5
 $as_echo_n "checking for long file names... " >&6; }
-if test "${ac_cv_sys_long_file_names+set}" = set; then :
+if ${ac_cv_sys_long_file_names+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_sys_long_file_names=yes
@@ -7394,8 +7413,8 @@
   have_x=disabled
 else
   case $x_includes,$x_libraries in #(
-    *\'*) as_fn_error "cannot use X directory names containing '" "$LINENO" 
5;; #(
-    *,NONE | NONE,*) if test "${ac_cv_have_x+set}" = set; then :
+    *\'*) as_fn_error $? "cannot use X directory names containing '" "$LINENO" 
5;; #(
+    *,NONE | NONE,*) if ${ac_cv_have_x+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   # One or both of the vars are not set, and there is no cached value.
@@ -7412,7 +7431,7 @@
        @echo libdir='${LIBDIR}'
 _ACEOF
   if (export CC; ${XMKMF-xmkmf}) >/dev/null 2>/dev/null && test -f Makefile; 
then
-    # GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+    # GNU make sometimes prints "make[1]: Entering ...", which would confuse 
us.
     for ac_var in incroot usrlibdir libdir; do
       eval "ac_im_$ac_var=\`\${MAKE-make} $ac_var 2>/dev/null | sed -n 
's/^$ac_var=//p'\`"
     done
@@ -7498,7 +7517,7 @@
   fi
 done
 fi
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 fi # $ac_x_includes = no
 
 if test "$ac_x_libraries" = no; then
@@ -7678,10 +7697,10 @@
      TEMACS_LDFLAGS2=
   fi
   ac_fn_c_check_header_mongrel "$LINENO" "AppKit/AppKit.h" 
"ac_cv_header_AppKit_AppKit_h" "$ac_includes_default"
-if test "x$ac_cv_header_AppKit_AppKit_h" = x""yes; then :
+if test "x$ac_cv_header_AppKit_AppKit_h" = xyes; then :
   HAVE_NS=yes
 else
-  as_fn_error "\`--with-ns' was specified, but the include
+  as_fn_error $? "\`--with-ns' was specified, but the include
   files are missing or cannot be compiled." "$LINENO" 5
 fi
 
@@ -7760,7 +7779,7 @@
 set dummy X; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_HAVE_XSERVER+set}" = set; then :
+if ${ac_cv_prog_HAVE_XSERVER+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$HAVE_XSERVER"; then
@@ -7797,7 +7816,7 @@
    if test "$HAVE_XSERVER" = true ||
       test -n "$DISPLAY" ||
       test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
-        as_fn_error "You seem to be running X, but no X development libraries
+        as_fn_error $? "You seem to be running X, but no X development 
libraries
 were found.  You should install the relevant development files for X
 and for the toolkit you want, such as Gtk+, Lesstif or Motif.  Also make
 sure you have development files for image handling, i.e.
@@ -7819,14 +7838,14 @@
 GNU_MALLOC=yes
 doug_lea_malloc=yes
 ac_fn_c_check_func "$LINENO" "malloc_get_state" "ac_cv_func_malloc_get_state"
-if test "x$ac_cv_func_malloc_get_state" = x""yes; then :
+if test "x$ac_cv_func_malloc_get_state" = xyes; then :
 
 else
   doug_lea_malloc=no
 fi
 
 ac_fn_c_check_func "$LINENO" "malloc_set_state" "ac_cv_func_malloc_set_state"
-if test "x$ac_cv_func_malloc_set_state" = x""yes; then :
+if test "x$ac_cv_func_malloc_set_state" = xyes; then :
 
 else
   doug_lea_malloc=no
@@ -7834,7 +7853,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether 
__after_morecore_hook exists" >&5
 $as_echo_n "checking whether __after_morecore_hook exists... " >&6; }
-if test "${emacs_cv_var___after_morecore_hook+set}" = set; then :
+if ${emacs_cv_var___after_morecore_hook+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -7920,8 +7939,7 @@
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" 
"$ac_includes_default
 "
-eval as_val=\$$as_ac_Header
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -7940,7 +7958,7 @@
 for ac_func in getpagesize
 do :
   ac_fn_c_check_func "$LINENO" "getpagesize" "ac_cv_func_getpagesize"
-if test "x$ac_cv_func_getpagesize" = x""yes; then :
+if test "x$ac_cv_func_getpagesize" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GETPAGESIZE 1
 _ACEOF
@@ -7950,7 +7968,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working mmap" >&5
 $as_echo_n "checking for working mmap... " >&6; }
-if test "${ac_cv_func_mmap_fixed_mapped+set}" = set; then :
+if ${ac_cv_func_mmap_fixed_mapped+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
@@ -8027,6 +8045,7 @@
 main ()
 {
   char *data, *data2, *data3;
+  const char *cdata2;
   int i, pagesize;
   int fd, fd2;
 
@@ -8051,10 +8070,10 @@
   fd2 = open ("conftest.txt", O_RDWR | O_CREAT | O_TRUNC, 0600);
   if (fd2 < 0)
     return 4;
-  data2 = "";
-  if (write (fd2, data2, 1) != 1)
+  cdata2 = "";
+  if (write (fd2, cdata2, 1) != 1)
     return 5;
-  data2 = mmap (0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd2, 0L);
+  data2 = (char *) mmap (0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd2, 
0L);
   if (data2 == MAP_FAILED)
     return 6;
   for (i = 0; i < pagesize; ++i)
@@ -8124,7 +8143,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dnet_ntoa in -ldnet" >&5
 $as_echo_n "checking for dnet_ntoa in -ldnet... " >&6; }
-if test "${ac_cv_lib_dnet_dnet_ntoa+set}" = set; then :
+if ${ac_cv_lib_dnet_dnet_ntoa+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8158,7 +8177,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dnet_dnet_ntoa" >&5
 $as_echo "$ac_cv_lib_dnet_dnet_ntoa" >&6; }
-if test "x$ac_cv_lib_dnet_dnet_ntoa" = x""yes; then :
+if test "x$ac_cv_lib_dnet_dnet_ntoa" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBDNET 1
 _ACEOF
@@ -8170,7 +8189,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lXbsd" >&5
 $as_echo_n "checking for main in -lXbsd... " >&6; }
-if test "${ac_cv_lib_Xbsd_main+set}" = set; then :
+if ${ac_cv_lib_Xbsd_main+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8198,14 +8217,14 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xbsd_main" >&5
 $as_echo "$ac_cv_lib_Xbsd_main" >&6; }
-if test "x$ac_cv_lib_Xbsd_main" = x""yes; then :
+if test "x$ac_cv_lib_Xbsd_main" = xyes; then :
   LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd"
 fi
 
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cma_open in -lpthreads" 
>&5
 $as_echo_n "checking for cma_open in -lpthreads... " >&6; }
-if test "${ac_cv_lib_pthreads_cma_open+set}" = set; then :
+if ${ac_cv_lib_pthreads_cma_open+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -8239,7 +8258,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthreads_cma_open" 
>&5
 $as_echo "$ac_cv_lib_pthreads_cma_open" >&6; }
-if test "x$ac_cv_lib_pthreads_cma_open" = x""yes; then :
+if test "x$ac_cv_lib_pthreads_cma_open" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBPTHREADS 1
 _ACEOF
@@ -8266,7 +8285,7 @@
 aix*)
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -bbigtoc option" >&5
 $as_echo_n "checking for -bbigtoc option... " >&6; }
-if test "${gdb_cv_bigtoc+set}" = set; then :
+if ${gdb_cv_bigtoc+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -8427,8 +8446,7 @@
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-eval as_val=\$$as_ac_var
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -8441,7 +8459,7 @@
 if test "${window_system}" = "x11"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking X11 version 6" >&5
 $as_echo_n "checking X11 version 6... " >&6; }
-  if test "${emacs_cv_x11_version_6+set}" = set; then :
+  if ${emacs_cv_x11_version_6+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -8506,7 +8524,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -8617,7 +8635,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -8716,7 +8734,7 @@
       for ac_func in MagickExportImagePixels
 do :
   ac_fn_c_check_func "$LINENO" "MagickExportImagePixels" 
"ac_cv_func_MagickExportImagePixels"
-if test "x$ac_cv_func_MagickExportImagePixels" = x""yes; then :
+if test "x$ac_cv_func_MagickExportImagePixels" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_MAGICKEXPORTIMAGEPIXELS 1
 _ACEOF
@@ -8742,7 +8760,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -8830,7 +8848,7 @@
   fi
 
   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
-     as_fn_error "$GTK_PKG_ERRORS" "$LINENO" 5
+     as_fn_error $? "$GTK_PKG_ERRORS" "$LINENO" 5
   fi
 fi
 
@@ -8848,7 +8866,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -8936,7 +8954,7 @@
   fi
 
   if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
-     as_fn_error "$GTK_PKG_ERRORS" "$LINENO" 5
+     as_fn_error $? "$GTK_PKG_ERRORS" "$LINENO" 5
   fi
 fi
 fi
@@ -8953,7 +8971,7 @@
   for ac_func in gtk_main
 do :
   ac_fn_c_check_func "$LINENO" "gtk_main" "ac_cv_func_gtk_main"
-if test "x$ac_cv_func_gtk_main" = x""yes; then :
+if test "x$ac_cv_func_gtk_main" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GTK_MAIN 1
 _ACEOF
@@ -8963,7 +8981,7 @@
 
   if test "${GTK_COMPILES}" != "yes"; then
     if test "$USE_X_TOOLKIT" != "maybe"; then
-      as_fn_error "Gtk+ wanted, but it does not compile, see config.log.  
Maybe some x11-devel files missing?" "$LINENO" 5;
+      as_fn_error $? "Gtk+ wanted, but it does not compile, see config.log.  
Maybe some x11-devel files missing?" "$LINENO" 5;
     fi
   else
     HAVE_GTK=yes
@@ -9001,7 +9019,7 @@
   ac_fn_c_check_decl "$LINENO" "GTK_TYPE_FILE_SELECTION" 
"ac_cv_have_decl_GTK_TYPE_FILE_SELECTION" "$ac_includes_default
 #include <gtk/gtk.h>
 "
-if test "x$ac_cv_have_decl_GTK_TYPE_FILE_SELECTION" = x""yes; then :
+if test "x$ac_cv_have_decl_GTK_TYPE_FILE_SELECTION" = xyes; then :
   HAVE_GTK_FILE_SELECTION=yes
 else
   HAVE_GTK_FILE_SELECTION=no
@@ -9011,7 +9029,7 @@
     for ac_func in gtk_file_selection_new
 do :
   ac_fn_c_check_func "$LINENO" "gtk_file_selection_new" 
"ac_cv_func_gtk_file_selection_new"
-if test "x$ac_cv_func_gtk_file_selection_new" = x""yes; then :
+if test "x$ac_cv_func_gtk_file_selection_new" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GTK_FILE_SELECTION_NEW 1
 _ACEOF
@@ -9025,7 +9043,7 @@
     for ac_header in pthread.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_pthread_h" = x""yes; then :
+if test "x$ac_cv_header_pthread_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_PTHREAD_H 1
 _ACEOF
@@ -9037,7 +9055,7 @@
     if test "$ac_cv_header_pthread_h"; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_self in 
-lpthread" >&5
 $as_echo_n "checking for pthread_self in -lpthread... " >&6; }
-if test "${ac_cv_lib_pthread_pthread_self+set}" = set; then :
+if ${ac_cv_lib_pthread_pthread_self+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9071,7 +9089,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_pthread_pthread_self" >&5
 $as_echo "$ac_cv_lib_pthread_pthread_self" >&6; }
-if test "x$ac_cv_lib_pthread_pthread_self" = x""yes; then :
+if test "x$ac_cv_lib_pthread_pthread_self" = xyes; then :
   HAVE_GTK_AND_PTHREAD=yes
 fi
 
@@ -9093,8 +9111,7 @@
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-eval as_val=\$$as_ac_var
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -9115,7 +9132,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -9210,7 +9227,7 @@
      for ac_func in dbus_watch_get_unix_fd
 do :
   ac_fn_c_check_func "$LINENO" "dbus_watch_get_unix_fd" 
"ac_cv_func_dbus_watch_get_unix_fd"
-if test "x$ac_cv_func_dbus_watch_get_unix_fd" = x""yes; then :
+if test "x$ac_cv_func_dbus_watch_get_unix_fd" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_DBUS_WATCH_GET_UNIX_FD 1
 _ACEOF
@@ -9232,7 +9249,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -9326,7 +9343,7 @@
             for ac_func in g_type_init
 do :
   ac_fn_c_check_func "$LINENO" "g_type_init" "ac_cv_func_g_type_init"
-if test "x$ac_cv_func_g_type_init" = x""yes; then :
+if test "x$ac_cv_func_g_type_init" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_G_TYPE_INIT 1
 _ACEOF
@@ -9342,7 +9359,7 @@
 if test "${with_selinux}" = "yes"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lgetfilecon in 
-lselinux" >&5
 $as_echo_n "checking for lgetfilecon in -lselinux... " >&6; }
-if test "${ac_cv_lib_selinux_lgetfilecon+set}" = set; then :
+if ${ac_cv_lib_selinux_lgetfilecon+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9376,7 +9393,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_selinux_lgetfilecon" >&5
 $as_echo "$ac_cv_lib_selinux_lgetfilecon" >&6; }
-if test "x$ac_cv_lib_selinux_lgetfilecon" = x""yes; then :
+if test "x$ac_cv_lib_selinux_lgetfilecon" = xyes; then :
   HAVE_LIBSELINUX=yes
 else
   HAVE_LIBSELINUX=no
@@ -9400,7 +9417,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -9502,7 +9519,7 @@
   if test "$with_xaw3d" != no; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for xaw3d" >&5
 $as_echo_n "checking for xaw3d... " >&6; }
-    if test "${emacs_cv_xaw3d+set}" = set; then :
+    if ${emacs_cv_xaw3d+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9544,7 +9561,7 @@
 $as_echo "no" >&6; }
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libXaw" >&5
 $as_echo_n "checking for libXaw... " >&6; }
-    if test "${emacs_cv_xaw+set}" = set; then :
+    if ${emacs_cv_xaw+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9575,7 +9592,7 @@
       USE_X_TOOLKIT=LUCID
       LUCID_LIBW=-lXaw
     elif test x"${USE_X_TOOLKIT}" = xLUCID; then
-      as_fn_error "Lucid toolkit requires X11/Xaw include files" "$LINENO" 5
+      as_fn_error $? "Lucid toolkit requires X11/Xaw include files" "$LINENO" 5
     else
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: no; do not use toolkit 
by default" >&5
 $as_echo "no; do not use toolkit by default" >&6; }
@@ -9590,7 +9607,7 @@
 if test "${USE_X_TOOLKIT}" != "none"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking X11 toolkit version" >&5
 $as_echo_n "checking X11 toolkit version... " >&6; }
-  if test "${emacs_cv_x11_toolkit_version_6+set}" = set; then :
+  if ${emacs_cv_x11_toolkit_version_6+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9641,7 +9658,7 @@
   fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 
XmuConvertStandardSelection in -lXmu" >&5
 $as_echo_n "checking for XmuConvertStandardSelection in -lXmu... " >&6; }
-if test "${ac_cv_lib_Xmu_XmuConvertStandardSelection+set}" = set; then :
+if ${ac_cv_lib_Xmu_XmuConvertStandardSelection+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9675,7 +9692,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_Xmu_XmuConvertStandardSelection" >&5
 $as_echo "$ac_cv_lib_Xmu_XmuConvertStandardSelection" >&6; }
-if test "x$ac_cv_lib_Xmu_XmuConvertStandardSelection" = x""yes; then :
+if test "x$ac_cv_lib_Xmu_XmuConvertStandardSelection" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBXMU 1
 _ACEOF
@@ -9702,7 +9719,7 @@
   if test "${USE_X_TOOLKIT}" != "none"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for XShapeQueryExtension 
in -lXext" >&5
 $as_echo_n "checking for XShapeQueryExtension in -lXext... " >&6; }
-if test "${ac_cv_lib_Xext_XShapeQueryExtension+set}" = set; then :
+if ${ac_cv_lib_Xext_XShapeQueryExtension+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9736,7 +9753,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_Xext_XShapeQueryExtension" >&5
 $as_echo "$ac_cv_lib_Xext_XShapeQueryExtension" >&6; }
-if test "x$ac_cv_lib_Xext_XShapeQueryExtension" = x""yes; then :
+if test "x$ac_cv_lib_Xext_XShapeQueryExtension" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBXEXT 1
 _ACEOF
@@ -9752,7 +9769,7 @@
 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Motif version 2.1" >&5
 $as_echo_n "checking for Motif version 2.1... " >&6; }
-if test "${emacs_cv_motif_version_2_1+set}" = set; then :
+if ${emacs_cv_motif_version_2_1+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -9782,7 +9799,7 @@
   if test $emacs_cv_motif_version_2_1 = yes; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for XpCreateContext in 
-lXp" >&5
 $as_echo_n "checking for XpCreateContext in -lXp... " >&6; }
-if test "${ac_cv_lib_Xp_XpCreateContext+set}" = set; then :
+if ${ac_cv_lib_Xp_XpCreateContext+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -9816,14 +9833,14 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_Xp_XpCreateContext" >&5
 $as_echo "$ac_cv_lib_Xp_XpCreateContext" >&6; }
-if test "x$ac_cv_lib_Xp_XpCreateContext" = x""yes; then :
+if test "x$ac_cv_lib_Xp_XpCreateContext" = xyes; then :
   LIBXP=-lXp
 fi
 
   else
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LessTif where some 
systems put it" >&5
 $as_echo_n "checking for LessTif where some systems put it... " >&6; }
-if test "${emacs_cv_lesstif+set}" = set; then :
+if ${emacs_cv_lesstif+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   # We put this in CFLAGS temporarily to precede other -I options
@@ -9982,7 +9999,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -10084,7 +10101,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -10176,7 +10193,7 @@
       HAVE_XRENDER=no
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 
XRenderQueryExtension in -lXrender" >&5
 $as_echo_n "checking for XRenderQueryExtension in -lXrender... " >&6; }
-if test "${ac_cv_lib_Xrender_XRenderQueryExtension+set}" = set; then :
+if ${ac_cv_lib_Xrender_XRenderQueryExtension+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10210,7 +10227,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_Xrender_XRenderQueryExtension" >&5
 $as_echo "$ac_cv_lib_Xrender_XRenderQueryExtension" >&6; }
-if test "x$ac_cv_lib_Xrender_XRenderQueryExtension" = x""yes; then :
+if test "x$ac_cv_lib_Xrender_XRenderQueryExtension" = xyes; then :
   HAVE_XRENDER=yes
 fi
 
@@ -10223,10 +10240,10 @@
        XFT_LIBS="-lXrender $XFT_LIBS"
        LIBS="$XFT_LIBS $LIBS"
        ac_fn_c_check_header_mongrel "$LINENO" "X11/Xft/Xft.h" 
"ac_cv_header_X11_Xft_Xft_h" "$ac_includes_default"
-if test "x$ac_cv_header_X11_Xft_Xft_h" = x""yes; then :
+if test "x$ac_cv_header_X11_Xft_Xft_h" = xyes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for XftFontOpen in -lXft" 
>&5
 $as_echo_n "checking for XftFontOpen in -lXft... " >&6; }
-if test "${ac_cv_lib_Xft_XftFontOpen+set}" = set; then :
+if ${ac_cv_lib_Xft_XftFontOpen+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10260,7 +10277,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_Xft_XftFontOpen" 
>&5
 $as_echo "$ac_cv_lib_Xft_XftFontOpen" >&6; }
-if test "x$ac_cv_lib_Xft_XftFontOpen" = x""yes; then :
+if test "x$ac_cv_lib_Xft_XftFontOpen" = xyes; then :
   HAVE_XFT=yes
 fi
 
@@ -10309,7 +10326,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -10402,7 +10419,7 @@
 
          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 
OTF_get_variation_glyphs in -lotf" >&5
 $as_echo_n "checking for OTF_get_variation_glyphs in -lotf... " >&6; }
-if test "${ac_cv_lib_otf_OTF_get_variation_glyphs+set}" = set; then :
+if ${ac_cv_lib_otf_OTF_get_variation_glyphs+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10436,7 +10453,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_otf_OTF_get_variation_glyphs" >&5
 $as_echo "$ac_cv_lib_otf_OTF_get_variation_glyphs" >&6; }
-if test "x$ac_cv_lib_otf_OTF_get_variation_glyphs" = x""yes; then :
+if test "x$ac_cv_lib_otf_OTF_get_variation_glyphs" = xyes; then :
   HAVE_OTF_GET_VARIATION_GLYPHS=yes
 else
   HAVE_OTF_GET_VARIATION_GLYPHS=no
@@ -10461,7 +10478,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -10579,10 +10596,10 @@
 if test "${HAVE_X11}" = "yes"; then
   if test "${with_xpm}" != "no"; then
     ac_fn_c_check_header_mongrel "$LINENO" "X11/xpm.h" 
"ac_cv_header_X11_xpm_h" "$ac_includes_default"
-if test "x$ac_cv_header_X11_xpm_h" = x""yes; then :
+if test "x$ac_cv_header_X11_xpm_h" = xyes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for XpmReadFileToPixmap in 
-lXpm" >&5
 $as_echo_n "checking for XpmReadFileToPixmap in -lXpm... " >&6; }
-if test "${ac_cv_lib_Xpm_XpmReadFileToPixmap+set}" = set; then :
+if ${ac_cv_lib_Xpm_XpmReadFileToPixmap+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10616,7 +10633,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_Xpm_XpmReadFileToPixmap" >&5
 $as_echo "$ac_cv_lib_Xpm_XpmReadFileToPixmap" >&6; }
-if test "x$ac_cv_lib_Xpm_XpmReadFileToPixmap" = x""yes; then :
+if test "x$ac_cv_lib_Xpm_XpmReadFileToPixmap" = xyes; then :
   HAVE_XPM=yes
 fi
 
@@ -10668,10 +10685,10 @@
 if test "${HAVE_X11}" = "yes"; then
   if test "${with_jpeg}" != "no"; then
             ac_fn_c_check_header_mongrel "$LINENO" "jerror.h" 
"ac_cv_header_jerror_h" "$ac_includes_default"
-if test "x$ac_cv_header_jerror_h" = x""yes; then :
+if test "x$ac_cv_header_jerror_h" = xyes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for jpeg_destroy_compress 
in -ljpeg" >&5
 $as_echo_n "checking for jpeg_destroy_compress in -ljpeg... " >&6; }
-if test "${ac_cv_lib_jpeg_jpeg_destroy_compress+set}" = set; then :
+if ${ac_cv_lib_jpeg_jpeg_destroy_compress+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10705,7 +10722,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_jpeg_jpeg_destroy_compress" >&5
 $as_echo "$ac_cv_lib_jpeg_jpeg_destroy_compress" >&6; }
-if test "x$ac_cv_lib_jpeg_jpeg_destroy_compress" = x""yes; then :
+if test "x$ac_cv_lib_jpeg_jpeg_destroy_compress" = xyes; then :
   HAVE_JPEG=yes
 fi
 
@@ -10752,8 +10769,7 @@
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" 
"$ac_includes_default"
-eval as_val=\$$as_ac_Header
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -10765,7 +10781,7 @@
     if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = 
yes ; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for png_get_channels 
in -lpng" >&5
 $as_echo_n "checking for png_get_channels in -lpng... " >&6; }
-if test "${ac_cv_lib_png_png_get_channels+set}" = set; then :
+if ${ac_cv_lib_png_png_get_channels+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10799,7 +10815,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_png_png_get_channels" >&5
 $as_echo "$ac_cv_lib_png_png_get_channels" >&6; }
-if test "x$ac_cv_lib_png_png_get_channels" = x""yes; then :
+if test "x$ac_cv_lib_png_png_get_channels" = xyes; then :
   HAVE_PNG=yes
 fi
 
@@ -10821,13 +10837,13 @@
 if test "${HAVE_X11}" = "yes"; then
   if test "${with_tiff}" != "no"; then
     ac_fn_c_check_header_mongrel "$LINENO" "tiffio.h" "ac_cv_header_tiffio_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_tiffio_h" = x""yes; then :
+if test "x$ac_cv_header_tiffio_h" = xyes; then :
   tifflibs="-lz -lm"
       # At least one tiff package requires the jpeg library.
       if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for TIFFGetVersion in 
-ltiff" >&5
 $as_echo_n "checking for TIFFGetVersion in -ltiff... " >&6; }
-if test "${ac_cv_lib_tiff_TIFFGetVersion+set}" = set; then :
+if ${ac_cv_lib_tiff_TIFFGetVersion+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10861,7 +10877,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_tiff_TIFFGetVersion" >&5
 $as_echo "$ac_cv_lib_tiff_TIFFGetVersion" >&6; }
-if test "x$ac_cv_lib_tiff_TIFFGetVersion" = x""yes; then :
+if test "x$ac_cv_lib_tiff_TIFFGetVersion" = xyes; then :
   HAVE_TIFF=yes
 fi
 
@@ -10884,12 +10900,12 @@
 LIBGIF=
 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
   ac_fn_c_check_header_mongrel "$LINENO" "gif_lib.h" "ac_cv_header_gif_lib_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_gif_lib_h" = x""yes; then :
+if test "x$ac_cv_header_gif_lib_h" = xyes; then :
   # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
 # Earlier versions can crash Emacs.
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for EGifPutExtensionLast 
in -lgif" >&5
 $as_echo_n "checking for EGifPutExtensionLast in -lgif... " >&6; }
-if test "${ac_cv_lib_gif_EGifPutExtensionLast+set}" = set; then :
+if ${ac_cv_lib_gif_EGifPutExtensionLast+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10923,7 +10939,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_gif_EGifPutExtensionLast" >&5
 $as_echo "$ac_cv_lib_gif_EGifPutExtensionLast" >&6; }
-if test "x$ac_cv_lib_gif_EGifPutExtensionLast" = x""yes; then :
+if test "x$ac_cv_lib_gif_EGifPutExtensionLast" = xyes; then :
   HAVE_GIF=yes
 else
   HAVE_GIF=maybe
@@ -10939,7 +10955,7 @@
 # If gif_lib.h but no libgif, try libungif.
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for EGifPutExtensionLast 
in -lungif" >&5
 $as_echo_n "checking for EGifPutExtensionLast in -lungif... " >&6; }
-if test "${ac_cv_lib_ungif_EGifPutExtensionLast+set}" = set; then :
+if ${ac_cv_lib_ungif_EGifPutExtensionLast+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -10973,7 +10989,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_ungif_EGifPutExtensionLast" >&5
 $as_echo "$ac_cv_lib_ungif_EGifPutExtensionLast" >&6; }
-if test "x$ac_cv_lib_ungif_EGifPutExtensionLast" = x""yes; then :
+if test "x$ac_cv_lib_ungif_EGifPutExtensionLast" = xyes; then :
   HAVE_GIF=yes
 else
   HAVE_GIF=no
@@ -11005,7 +11021,7 @@
     MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
 
   if test "X${MISSING}" != X; then
-    as_fn_error "The following required libraries were not found:
+    as_fn_error $? "The following required libraries were not found:
     $MISSING
 Maybe some development libraries/packages are missing?
 If you don't want to link with them give
@@ -11020,10 +11036,10 @@
 MOUSE_SUPPORT=
 if test "${with_gpm}" != "no"; then
   ac_fn_c_check_header_mongrel "$LINENO" "gpm.h" "ac_cv_header_gpm_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_gpm_h" = x""yes; then :
+if test "x$ac_cv_header_gpm_h" = xyes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Gpm_Open in -lgpm" >&5
 $as_echo_n "checking for Gpm_Open in -lgpm... " >&6; }
-if test "${ac_cv_lib_gpm_Gpm_Open+set}" = set; then :
+if ${ac_cv_lib_gpm_Gpm_Open+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -11057,7 +11073,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_gpm_Gpm_Open" >&5
 $as_echo "$ac_cv_lib_gpm_Gpm_Open" >&6; }
-if test "x$ac_cv_lib_gpm_Gpm_Open" = x""yes; then :
+if test "x$ac_cv_lib_gpm_Gpm_Open" = xyes; then :
   HAVE_GPM=yes
 fi
 
@@ -11077,7 +11093,7 @@
 
 
 ac_fn_c_check_header_mongrel "$LINENO" "malloc/malloc.h" 
"ac_cv_header_malloc_malloc_h" "$ac_includes_default"
-if test "x$ac_cv_header_malloc_malloc_h" = x""yes; then :
+if test "x$ac_cv_header_malloc_malloc_h" = xyes; then :
 
 $as_echo "#define HAVE_MALLOC_MALLOC_H 1" >>confdefs.h
 
@@ -11122,10 +11138,10 @@
 LIBXSM=
 if test "${HAVE_X11}" = "yes"; then
   ac_fn_c_check_header_mongrel "$LINENO" "X11/SM/SMlib.h" 
"ac_cv_header_X11_SM_SMlib_h" "$ac_includes_default"
-if test "x$ac_cv_header_X11_SM_SMlib_h" = x""yes; then :
+if test "x$ac_cv_header_X11_SM_SMlib_h" = xyes; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SmcOpenConnection in 
-lSM" >&5
 $as_echo_n "checking for SmcOpenConnection in -lSM... " >&6; }
-if test "${ac_cv_lib_SM_SmcOpenConnection+set}" = set; then :
+if ${ac_cv_lib_SM_SmcOpenConnection+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -11159,7 +11175,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_SM_SmcOpenConnection" >&5
 $as_echo "$ac_cv_lib_SM_SmcOpenConnection" >&6; }
-if test "x$ac_cv_lib_SM_SmcOpenConnection" = x""yes; then :
+if test "x$ac_cv_lib_SM_SmcOpenConnection" = xyes; then :
   HAVE_X_SM=yes
 fi
 
@@ -11190,7 +11206,7 @@
 set dummy pkg-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then :
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -11281,7 +11297,7 @@
     LIBS="$LIBXML2_LIBS $LIBS"
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for htmlReadMemory in 
-lxml2" >&5
 $as_echo_n "checking for htmlReadMemory in -lxml2... " >&6; }
-if test "${ac_cv_lib_xml2_htmlReadMemory+set}" = set; then :
+if ${ac_cv_lib_xml2_htmlReadMemory+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -11315,7 +11331,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_xml2_htmlReadMemory" >&5
 $as_echo "$ac_cv_lib_xml2_htmlReadMemory" >&6; }
-if test "x$ac_cv_lib_xml2_htmlReadMemory" = x""yes; then :
+if test "x$ac_cv_lib_xml2_htmlReadMemory" = xyes; then :
   HAVE_LIBXML2=yes
 else
   HAVE_LIBXML2=no
@@ -11337,7 +11353,7 @@
 # If netdb.h doesn't declare h_errno, we must declare it by hand.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether netdb declares 
h_errno" >&5
 $as_echo_n "checking whether netdb declares h_errno... " >&6; }
-if test "${emacs_cv_netdb_declares_h_errno+set}" = set; then :
+if ${emacs_cv_netdb_declares_h_errno+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -11367,11 +11383,22 @@
 
 fi
 
+ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" 
"$ac_includes_default"
+if test "x$ac_cv_type_size_t" = xyes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define size_t unsigned int
+_ACEOF
+
+fi
+
 # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
 # for constant arguments.  Useless!
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5
 $as_echo_n "checking for working alloca.h... " >&6; }
-if test "${ac_cv_working_alloca_h+set}" = set; then :
+if ${ac_cv_working_alloca_h+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -11404,7 +11431,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for alloca" >&5
 $as_echo_n "checking for alloca... " >&6; }
-if test "${ac_cv_func_alloca_works+set}" = set; then :
+if ${ac_cv_func_alloca_works+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -11423,7 +11450,7 @@
  #pragma alloca
 #   else
 #    ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
+void *alloca (size_t);
 #    endif
 #   endif
 #  endif
@@ -11467,7 +11494,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether \`alloca.c' needs 
Cray hooks" >&5
 $as_echo_n "checking whether \`alloca.c' needs Cray hooks... " >&6; }
-if test "${ac_cv_os_cray+set}" = set; then :
+if ${ac_cv_os_cray+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -11494,8 +11521,7 @@
   for ac_func in _getb67 GETB67 getb67; do
     as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-eval as_val=\$$as_ac_var
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
 
 cat >>confdefs.h <<_ACEOF
 #define CRAY_STACKSEG_END $ac_func
@@ -11509,7 +11535,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking stack direction for C 
alloca" >&5
 $as_echo_n "checking stack direction for C alloca... " >&6; }
-if test "${ac_cv_c_stack_direction+set}" = set; then :
+if ${ac_cv_c_stack_direction+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
@@ -11559,14 +11585,14 @@
 
 
 if test x"$ac_cv_func_alloca_works" != xyes; then
-   as_fn_error "a system implementation of alloca is required " "$LINENO" 5
+   as_fn_error $? "a system implementation of alloca is required " "$LINENO" 5
 fi
 
 # fmod, logb, and frexp are found in -lm on most systems.
 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrt in -lm" >&5
 $as_echo_n "checking for sqrt in -lm... " >&6; }
-if test "${ac_cv_lib_m_sqrt+set}" = set; then :
+if ${ac_cv_lib_m_sqrt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -11600,7 +11626,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sqrt" >&5
 $as_echo "$ac_cv_lib_m_sqrt" >&6; }
-if test "x$ac_cv_lib_m_sqrt" = x""yes; then :
+if test "x$ac_cv_lib_m_sqrt" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBM 1
 _ACEOF
@@ -11614,7 +11640,7 @@
 # have the same check as for liblockfile below.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for maillock in -lmail" >&5
 $as_echo_n "checking for maillock in -lmail... " >&6; }
-if test "${ac_cv_lib_mail_maillock+set}" = set; then :
+if ${ac_cv_lib_mail_maillock+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -11648,7 +11674,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mail_maillock" >&5
 $as_echo "$ac_cv_lib_mail_maillock" >&6; }
-if test "x$ac_cv_lib_mail_maillock" = x""yes; then :
+if test "x$ac_cv_lib_mail_maillock" = xyes; then :
   have_mail=yes
 else
   have_mail=no
@@ -11665,7 +11691,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for maillock in -llockfile" 
>&5
 $as_echo_n "checking for maillock in -llockfile... " >&6; }
-if test "${ac_cv_lib_lockfile_maillock+set}" = set; then :
+if ${ac_cv_lib_lockfile_maillock+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -11699,7 +11725,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lockfile_maillock" 
>&5
 $as_echo "$ac_cv_lib_lockfile_maillock" >&6; }
-if test "x$ac_cv_lib_lockfile_maillock" = x""yes; then :
+if test "x$ac_cv_lib_lockfile_maillock" = xyes; then :
   have_lockfile=yes
 else
   have_lockfile=no
@@ -11719,7 +11745,7 @@
 set dummy liblockfile.so; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_liblockfile+set}" = set; then :
+if ${ac_cv_prog_liblockfile+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$liblockfile"; then
@@ -11755,7 +11781,7 @@
 
 
   if test $ac_cv_prog_liblockfile = yes; then
-    as_fn_error "Shared liblockfile found but can't link against it.
+    as_fn_error $? "Shared liblockfile found but can't link against it.
 This probably means that movemail could lose mail.
 There may be a \`development' package to install containing liblockfile." 
"$LINENO" 5
   fi
@@ -11763,7 +11789,7 @@
 for ac_func in touchlock
 do :
   ac_fn_c_check_func "$LINENO" "touchlock" "ac_cv_func_touchlock"
-if test "x$ac_cv_func_touchlock" = x""yes; then :
+if test "x$ac_cv_func_touchlock" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_TOUCHLOCK 1
 _ACEOF
@@ -11774,7 +11800,7 @@
 for ac_header in maillock.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "maillock.h" 
"ac_cv_header_maillock_h" "$ac_includes_default"
-if test "x$ac_cv_header_maillock_h" = x""yes; then :
+if test "x$ac_cv_header_maillock_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_MAILLOCK_H 1
 _ACEOF
@@ -11844,8 +11870,7 @@
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-eval as_val=\$$as_ac_var
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -11854,10 +11879,42 @@
 done
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_unwind_init" 
>&5
+$as_echo_n "checking for __builtin_unwind_init... " >&6; }
+if ${emacs_cv_func___builtin_unwind_init+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+__builtin_unwind_init ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  emacs_cv_func___builtin_unwind_init=yes
+else
+  emacs_cv_func___builtin_unwind_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$emacs_cv_func___builtin_unwind_init" >&5
+$as_echo "$emacs_cv_func___builtin_unwind_init" >&6; }
+if test $emacs_cv_func___builtin_unwind_init = yes; then
+
+$as_echo "#define HAVE___BUILTIN_UNWIND_INIT 1" >>confdefs.h
+
+fi
+
 for ac_header in sys/un.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "sys/un.h" "ac_cv_header_sys_un_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_sys_un_h" = x""yes; then :
+if test "x$ac_cv_header_sys_un_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_SYS_UN_H 1
 _ACEOF
@@ -11876,8 +11933,7 @@
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-eval as_val=\$$as_ac_var
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -11891,7 +11947,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working mktime" >&5
 $as_echo_n "checking for working mktime... " >&6; }
-if test "${ac_cv_func_working_mktime+set}" = set; then :
+if ${ac_cv_func_working_mktime+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
@@ -11929,8 +11985,8 @@
 static time_t time_t_min;
 
 /* Values we'll use to set the TZ environment variable.  */
-static char *tz_strings[] = {
-  (char *) 0, "TZ=GMT0", "TZ=JST-9",
+static const char *tz_strings[] = {
+  (const char *) 0, "TZ=GMT0", "TZ=JST-9",
   "TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
 };
 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
@@ -11947,7 +12003,7 @@
      instead of "TZ=America/Vancouver" in order to detect the bug even
      on systems that don't support the Olson extension, or don't have the
      full zoneinfo tables installed.  */
-  putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
+  putenv ((char*) "TZ=PST8PDT,M4.1.0,M10.5.0");
 
   tm.tm_year = 98;
   tm.tm_mon = 3;
@@ -11960,16 +12016,14 @@
 }
 
 static int
-mktime_test1 (now)
-     time_t now;
+mktime_test1 (time_t now)
 {
   struct tm *lt;
   return ! (lt = localtime (&now)) || mktime (lt) == now;
 }
 
 static int
-mktime_test (now)
-     time_t now;
+mktime_test (time_t now)
 {
   return (mktime_test1 (now)
          && mktime_test1 ((time_t) (time_t_max - now))
@@ -11993,8 +12047,7 @@
 }
 
 static int
-bigtime_test (j)
-     int j;
+bigtime_test (int j)
 {
   struct tm tm;
   time_t now;
@@ -12038,7 +12091,7 @@
      instead of "TZ=America/Vancouver" in order to detect the bug even
      on systems that don't support the Olson extension, or don't have the
      full zoneinfo tables installed.  */
-  putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
+  putenv ((char*) "TZ=PST8PDT,M4.1.0,M10.5.0");
 
   t = mktime (&tm);
 
@@ -12073,7 +12126,7 @@
   for (i = 0; i < N_STRINGS; i++)
     {
       if (tz_strings[i])
-       putenv (tz_strings[i]);
+       putenv ((char*) tz_strings[i]);
 
       for (t = 0; t <= time_t_max - delta; t += delta)
        if (! mktime_test (t))
@@ -12125,13 +12178,13 @@
 
 # Make sure getloadavg.c is where it belongs, at configure-time.
 test -f "$srcdir/$ac_config_libobj_dir/getloadavg.c" ||
-  as_fn_error "$srcdir/$ac_config_libobj_dir/getloadavg.c is missing" 
"$LINENO" 5
+  as_fn_error $? "$srcdir/$ac_config_libobj_dir/getloadavg.c is missing" 
"$LINENO" 5
 
 ac_save_LIBS=$LIBS
 
 # Check for getloadavg, but be sure not to touch the cache variable.
 (ac_fn_c_check_func "$LINENO" "getloadavg" "ac_cv_func_getloadavg"
-if test "x$ac_cv_func_getloadavg" = x""yes; then :
+if test "x$ac_cv_func_getloadavg" = xyes; then :
   exit 0
 else
   exit 1
@@ -12142,7 +12195,7 @@
 for ac_func in pstat_getdynamic
 do :
   ac_fn_c_check_func "$LINENO" "pstat_getdynamic" "ac_cv_func_pstat_getdynamic"
-if test "x$ac_cv_func_pstat_getdynamic" = x""yes; then :
+if test "x$ac_cv_func_pstat_getdynamic" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_PSTAT_GETDYNAMIC 1
 _ACEOF
@@ -12154,7 +12207,7 @@
 # Solaris has libkstat which does not require root.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for kstat_open in -lkstat" 
>&5
 $as_echo_n "checking for kstat_open in -lkstat... " >&6; }
-if test "${ac_cv_lib_kstat_kstat_open+set}" = set; then :
+if ${ac_cv_lib_kstat_kstat_open+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12188,7 +12241,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_kstat_kstat_open" 
>&5
 $as_echo "$ac_cv_lib_kstat_kstat_open" >&6; }
-if test "x$ac_cv_lib_kstat_kstat_open" = x""yes; then :
+if test "x$ac_cv_lib_kstat_kstat_open" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBKSTAT 1
 _ACEOF
@@ -12206,7 +12259,7 @@
 if test $ac_have_func = no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for elf_begin in -lelf" >&5
 $as_echo_n "checking for elf_begin in -lelf... " >&6; }
-if test "${ac_cv_lib_elf_elf_begin+set}" = set; then :
+if ${ac_cv_lib_elf_elf_begin+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12240,7 +12293,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_elf_elf_begin" >&5
 $as_echo "$ac_cv_lib_elf_elf_begin" >&6; }
-if test "x$ac_cv_lib_elf_elf_begin" = x""yes; then :
+if test "x$ac_cv_lib_elf_elf_begin" = xyes; then :
   LIBS="-lelf $LIBS"
 fi
 
@@ -12248,7 +12301,7 @@
 if test $ac_have_func = no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for kvm_open in -lkvm" >&5
 $as_echo_n "checking for kvm_open in -lkvm... " >&6; }
-if test "${ac_cv_lib_kvm_kvm_open+set}" = set; then :
+if ${ac_cv_lib_kvm_kvm_open+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12282,14 +12335,14 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_kvm_kvm_open" >&5
 $as_echo "$ac_cv_lib_kvm_kvm_open" >&6; }
-if test "x$ac_cv_lib_kvm_kvm_open" = x""yes; then :
+if test "x$ac_cv_lib_kvm_kvm_open" = xyes; then :
   LIBS="-lkvm $LIBS"
 fi
 
   # Check for the 4.4BSD definition of getloadavg.
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getloadavg in -lutil" 
>&5
 $as_echo_n "checking for getloadavg in -lutil... " >&6; }
-if test "${ac_cv_lib_util_getloadavg+set}" = set; then :
+if ${ac_cv_lib_util_getloadavg+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12323,7 +12376,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_util_getloadavg" 
>&5
 $as_echo "$ac_cv_lib_util_getloadavg" >&6; }
-if test "x$ac_cv_lib_util_getloadavg" = x""yes; then :
+if test "x$ac_cv_lib_util_getloadavg" = xyes; then :
   LIBS="-lutil $LIBS" ac_have_func=yes ac_cv_func_getloadavg_setgid=yes
 fi
 
@@ -12336,7 +12389,7 @@
   LIBS="-L/usr/local/lib $LIBS"
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getloadavg in 
-lgetloadavg" >&5
 $as_echo_n "checking for getloadavg in -lgetloadavg... " >&6; }
-if test "${ac_cv_lib_getloadavg_getloadavg+set}" = set; then :
+if ${ac_cv_lib_getloadavg_getloadavg+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12370,7 +12423,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_getloadavg_getloadavg" >&5
 $as_echo "$ac_cv_lib_getloadavg_getloadavg" >&6; }
-if test "x$ac_cv_lib_getloadavg_getloadavg" = x""yes; then :
+if test "x$ac_cv_lib_getloadavg_getloadavg" = xyes; then :
   LIBS="-lgetloadavg $LIBS"
 else
   LIBS=$ac_getloadavg_LIBS
@@ -12383,7 +12436,7 @@
 for ac_func in getloadavg
 do :
   ac_fn_c_check_func "$LINENO" "getloadavg" "ac_cv_func_getloadavg"
-if test "x$ac_cv_func_getloadavg" = x""yes; then :
+if test "x$ac_cv_func_getloadavg" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GETLOADAVG 1
 _ACEOF
@@ -12401,14 +12454,14 @@
 # Figure out what our getloadavg.c needs.
 ac_have_func=no
 ac_fn_c_check_header_mongrel "$LINENO" "sys/dg_sys_info.h" 
"ac_cv_header_sys_dg_sys_info_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_dg_sys_info_h" = x""yes; then :
+if test "x$ac_cv_header_sys_dg_sys_info_h" = xyes; then :
   ac_have_func=yes
 
 $as_echo "#define DGUX 1" >>confdefs.h
 
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dg_sys_info in -ldgc" 
>&5
 $as_echo_n "checking for dg_sys_info in -ldgc... " >&6; }
-if test "${ac_cv_lib_dgc_dg_sys_info+set}" = set; then :
+if ${ac_cv_lib_dgc_dg_sys_info+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12442,7 +12495,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dgc_dg_sys_info" 
>&5
 $as_echo "$ac_cv_lib_dgc_dg_sys_info" >&6; }
-if test "x$ac_cv_lib_dgc_dg_sys_info" = x""yes; then :
+if test "x$ac_cv_lib_dgc_dg_sys_info" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBDGC 1
 _ACEOF
@@ -12456,7 +12509,7 @@
 
 
 ac_fn_c_check_header_mongrel "$LINENO" "locale.h" "ac_cv_header_locale_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_locale_h" = x""yes; then :
+if test "x$ac_cv_header_locale_h" = xyes; then :
 
 fi
 
@@ -12464,7 +12517,7 @@
 for ac_func in setlocale
 do :
   ac_fn_c_check_func "$LINENO" "setlocale" "ac_cv_func_setlocale"
-if test "x$ac_cv_func_setlocale" = x""yes; then :
+if test "x$ac_cv_func_setlocale" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_SETLOCALE 1
 _ACEOF
@@ -12476,7 +12529,8 @@
 # We cannot check for <dwarf.h>, because Solaris 2 does not use dwarf (it
 # uses stabs), but it is still SVR4.  We cannot check for <elf.h> because
 # Irix 4.0.5F has the header but not the library.
-if test $ac_have_func = no && test "$ac_cv_lib_elf_elf_begin" = yes; then
+if test $ac_have_func = no && test "$ac_cv_lib_elf_elf_begin" = yes \
+    && test "$ac_cv_lib_kvm_kvm_open" = yes; then
   ac_have_func=yes
 
 $as_echo "#define SVR4 1" >>confdefs.h
@@ -12485,7 +12539,7 @@
 
 if test $ac_have_func = no; then
   ac_fn_c_check_header_mongrel "$LINENO" "inq_stats/cpustats.h" 
"ac_cv_header_inq_stats_cpustats_h" "$ac_includes_default"
-if test "x$ac_cv_header_inq_stats_cpustats_h" = x""yes; then :
+if test "x$ac_cv_header_inq_stats_cpustats_h" = xyes; then :
   ac_have_func=yes
 
 $as_echo "#define UMAX 1" >>confdefs.h
@@ -12500,7 +12554,7 @@
 
 if test $ac_have_func = no; then
   ac_fn_c_check_header_mongrel "$LINENO" "sys/cpustats.h" 
"ac_cv_header_sys_cpustats_h" "$ac_includes_default"
-if test "x$ac_cv_header_sys_cpustats_h" = x""yes; then :
+if test "x$ac_cv_header_sys_cpustats_h" = xyes; then :
   ac_have_func=yes; $as_echo "#define UMAX 1" >>confdefs.h
 
 fi
@@ -12512,7 +12566,7 @@
   for ac_header in mach/mach.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "mach/mach.h" 
"ac_cv_header_mach_mach_h" "$ac_includes_default"
-if test "x$ac_cv_header_mach_mach_h" = x""yes; then :
+if test "x$ac_cv_header_mach_mach_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_MACH_MACH_H 1
 _ACEOF
@@ -12526,13 +12580,13 @@
 for ac_header in nlist.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "nlist.h" "ac_cv_header_nlist_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_nlist_h" = x""yes; then :
+if test "x$ac_cv_header_nlist_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_NLIST_H 1
 _ACEOF
  ac_fn_c_check_member "$LINENO" "struct nlist" "n_un.n_name" 
"ac_cv_member_struct_nlist_n_un_n_name" "#include <nlist.h>
 "
-if test "x$ac_cv_member_struct_nlist_n_un_n_name" = x""yes; then :
+if test "x$ac_cv_member_struct_nlist_n_un_n_name" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_STRUCT_NLIST_N_UN_N_NAME 1
@@ -12555,7 +12609,7 @@
 # Some definitions of getloadavg require that the program be installed setgid.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether getloadavg requires 
setgid" >&5
 $as_echo_n "checking whether getloadavg requires setgid... " >&6; }
-if test "${ac_cv_func_getloadavg_setgid+set}" = set; then :
+if ${ac_cv_func_getloadavg_setgid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -12588,7 +12642,7 @@
 if test $ac_cv_func_getloadavg_setgid = yes; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking group of /dev/kmem" >&5
 $as_echo_n "checking group of /dev/kmem... " >&6; }
-if test "${ac_cv_group_kmem+set}" = set; then :
+if ${ac_cv_group_kmem+:} false; then :
   $as_echo_n "(cached) " >&6
 else
    # On Solaris, /dev/kmem is a symlink.  Get info on the real file.
@@ -12616,7 +12670,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGEFILE_SOURCE value 
needed for large files" >&5
 $as_echo_n "checking for _LARGEFILE_SOURCE value needed for large files... " 
>&6; }
-if test "${ac_cv_sys_largefile_source+set}" = set; then :
+if ${ac_cv_sys_largefile_source+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   while :; do
@@ -12709,7 +12763,7 @@
   for ac_header in getopt.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "getopt.h" "ac_cv_header_getopt_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_getopt_h" = x""yes; then :
+if test "x$ac_cv_header_getopt_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GETOPT_H 1
 _ACEOF
@@ -12724,7 +12778,7 @@
     for ac_func in getopt_long_only
 do :
   ac_fn_c_check_func "$LINENO" "getopt_long_only" "ac_cv_func_getopt_long_only"
-if test "x$ac_cv_func_getopt_long_only" = x""yes; then :
+if test "x$ac_cv_func_getopt_long_only" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GETOPT_LONG_ONLY 1
 _ACEOF
@@ -12739,7 +12793,7 @@
       if test -z "$GETOPT_H"; then
     ac_fn_c_check_decl "$LINENO" "optreset" "ac_cv_have_decl_optreset" 
"#include <getopt.h>
 "
-if test "x$ac_cv_have_decl_optreset" = x""yes; then :
+if test "x$ac_cv_have_decl_optreset" = xyes; then :
   GETOPT_H=getopt.h
 fi
 
@@ -12748,13 +12802,13 @@
       if test -z "$GETOPT_H"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working GNU getopt 
function" >&5
 $as_echo_n "checking for working GNU getopt function... " >&6; }
-if test "${gl_cv_func_gnu_getopt+set}" = set; then :
+if ${gl_cv_func_gnu_getopt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
                         ac_fn_c_check_decl "$LINENO" "getopt_clip" 
"ac_cv_have_decl_getopt_clip" "#include <getopt.h>
 "
-if test "x$ac_cv_have_decl_getopt_clip" = x""yes; then :
+if test "x$ac_cv_have_decl_getopt_clip" = xyes; then :
   gl_cv_func_gnu_getopt=no
 else
   gl_cv_func_gnu_getopt=yes
@@ -12815,7 +12869,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether getpgrp requires 
zero arguments" >&5
 $as_echo_n "checking whether getpgrp requires zero arguments... " >&6; }
-if test "${ac_cv_func_getpgrp_void+set}" = set; then :
+if ${ac_cv_func_getpgrp_void+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   # Use it with a single arg.
@@ -12850,7 +12904,7 @@
 for ac_func in strftime
 do :
   ac_fn_c_check_func "$LINENO" "strftime" "ac_cv_func_strftime"
-if test "x$ac_cv_func_strftime" = x""yes; then :
+if test "x$ac_cv_func_strftime" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_STRFTIME 1
 _ACEOF
@@ -12859,7 +12913,7 @@
   # strftime is in -lintl on SCO UNIX.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strftime in -lintl" >&5
 $as_echo_n "checking for strftime in -lintl... " >&6; }
-if test "${ac_cv_lib_intl_strftime+set}" = set; then :
+if ${ac_cv_lib_intl_strftime+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -12893,7 +12947,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_intl_strftime" >&5
 $as_echo "$ac_cv_lib_intl_strftime" >&6; }
-if test "x$ac_cv_lib_intl_strftime" = x""yes; then :
+if test "x$ac_cv_lib_intl_strftime" = xyes; then :
   $as_echo "#define HAVE_STRFTIME 1" >>confdefs.h
 
 LIBS="-lintl $LIBS"
@@ -12907,7 +12961,7 @@
 for ac_func in grantpt
 do :
   ac_fn_c_check_func "$LINENO" "grantpt" "ac_cv_func_grantpt"
-if test "x$ac_cv_func_grantpt" = x""yes; then :
+if test "x$ac_cv_func_grantpt" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GRANTPT 1
 _ACEOF
@@ -12920,7 +12974,7 @@
 for ac_func in getpt
 do :
   ac_fn_c_check_func "$LINENO" "getpt" "ac_cv_func_getpt"
-if test "x$ac_cv_func_getpt" = x""yes; then :
+if test "x$ac_cv_func_getpt" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GETPT 1
 _ACEOF
@@ -12937,7 +12991,7 @@
 have_tputs_et_al=true
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing 
tputs" >&5
 $as_echo_n "checking for library containing tputs... " >&6; }
-if test "${ac_cv_search_tputs+set}" = set; then :
+if ${ac_cv_search_tputs+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_func_search_save_LIBS=$LIBS
@@ -12971,11 +13025,11 @@
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext
-  if test "${ac_cv_search_tputs+set}" = set; then :
+  if ${ac_cv_search_tputs+:} false; then :
   break
 fi
 done
-if test "${ac_cv_search_tputs+set}" = set; then :
+if ${ac_cv_search_tputs+:} false; then :
 
 else
   ac_cv_search_tputs=no
@@ -12994,7 +13048,7 @@
 fi
 
 if test "$have_tputs_et_al" != true; then
-  as_fn_error "I couldn't find termcap functions (tputs and friends).
+  as_fn_error $? "I couldn't find termcap functions (tputs and friends).
 Maybe some development libraries/packages are missing?  Try installing
 libncurses-dev(el), libterminfo-dev(el) or similar." "$LINENO" 5
 fi
@@ -13034,7 +13088,7 @@
   freebsd)
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether FreeBSD is new 
enough to use terminfo" >&5
 $as_echo_n "checking whether FreeBSD is new enough to use terminfo... " >&6; }
-    if test "${emacs_cv_freebsd_terminfo+set}" = set; then :
+    if ${emacs_cv_freebsd_terminfo+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -13176,16 +13230,16 @@
 if test "$with_hesiod" != no ; then
   # Don't set $LIBS here -- see comments above.  FIXME which comments?
   ac_fn_c_check_func "$LINENO" "res_send" "ac_cv_func_res_send"
-if test "x$ac_cv_func_res_send" = x""yes; then :
+if test "x$ac_cv_func_res_send" = xyes; then :
 
 else
   ac_fn_c_check_func "$LINENO" "__res_send" "ac_cv_func___res_send"
-if test "x$ac_cv_func___res_send" = x""yes; then :
+if test "x$ac_cv_func___res_send" = xyes; then :
 
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for res_send in -lresolv" 
>&5
 $as_echo_n "checking for res_send in -lresolv... " >&6; }
-if test "${ac_cv_lib_resolv_res_send+set}" = set; then :
+if ${ac_cv_lib_resolv_res_send+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13219,12 +13273,12 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_resolv_res_send" 
>&5
 $as_echo "$ac_cv_lib_resolv_res_send" >&6; }
-if test "x$ac_cv_lib_resolv_res_send" = x""yes; then :
+if test "x$ac_cv_lib_resolv_res_send" = xyes; then :
   resolv=yes
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __res_send in 
-lresolv" >&5
 $as_echo_n "checking for __res_send in -lresolv... " >&6; }
-if test "${ac_cv_lib_resolv___res_send+set}" = set; then :
+if ${ac_cv_lib_resolv___res_send+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13258,7 +13312,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_resolv___res_send" 
>&5
 $as_echo "$ac_cv_lib_resolv___res_send" >&6; }
-if test "x$ac_cv_lib_resolv___res_send" = x""yes; then :
+if test "x$ac_cv_lib_resolv___res_send" = xyes; then :
   resolv=yes
 fi
 
@@ -13274,12 +13328,12 @@
     RESOLVLIB=
   fi
   ac_fn_c_check_func "$LINENO" "hes_getmailhost" "ac_cv_func_hes_getmailhost"
-if test "x$ac_cv_func_hes_getmailhost" = x""yes; then :
+if test "x$ac_cv_func_hes_getmailhost" = xyes; then :
 
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hes_getmailhost in 
-lhesiod" >&5
 $as_echo_n "checking for hes_getmailhost in -lhesiod... " >&6; }
-if test "${ac_cv_lib_hesiod_hes_getmailhost+set}" = set; then :
+if ${ac_cv_lib_hesiod_hes_getmailhost+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13313,7 +13367,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_hesiod_hes_getmailhost" >&5
 $as_echo "$ac_cv_lib_hesiod_hes_getmailhost" >&6; }
-if test "x$ac_cv_lib_hesiod_hes_getmailhost" = x""yes; then :
+if test "x$ac_cv_lib_hesiod_hes_getmailhost" = xyes; then :
   hesiod=yes
 else
   :
@@ -13352,7 +13406,7 @@
 if test "${with_kerberos}" != no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for com_err in -lcom_err" 
>&5
 $as_echo_n "checking for com_err in -lcom_err... " >&6; }
-if test "${ac_cv_lib_com_err_com_err+set}" = set; then :
+if ${ac_cv_lib_com_err_com_err+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13386,7 +13440,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_com_err_com_err" 
>&5
 $as_echo "$ac_cv_lib_com_err_com_err" >&6; }
-if test "x$ac_cv_lib_com_err_com_err" = x""yes; then :
+if test "x$ac_cv_lib_com_err_com_err" = xyes; then :
   have_com_err=yes
 else
   have_com_err=no
@@ -13401,7 +13455,7 @@
   fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mit_des_cbc_encrypt in 
-lcrypto" >&5
 $as_echo_n "checking for mit_des_cbc_encrypt in -lcrypto... " >&6; }
-if test "${ac_cv_lib_crypto_mit_des_cbc_encrypt+set}" = set; then :
+if ${ac_cv_lib_crypto_mit_des_cbc_encrypt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13435,7 +13489,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_crypto_mit_des_cbc_encrypt" >&5
 $as_echo "$ac_cv_lib_crypto_mit_des_cbc_encrypt" >&6; }
-if test "x$ac_cv_lib_crypto_mit_des_cbc_encrypt" = x""yes; then :
+if test "x$ac_cv_lib_crypto_mit_des_cbc_encrypt" = xyes; then :
   have_crypto=yes
 else
   have_crypto=no
@@ -13450,7 +13504,7 @@
   fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mit_des_cbc_encrypt in 
-lk5crypto" >&5
 $as_echo_n "checking for mit_des_cbc_encrypt in -lk5crypto... " >&6; }
-if test "${ac_cv_lib_k5crypto_mit_des_cbc_encrypt+set}" = set; then :
+if ${ac_cv_lib_k5crypto_mit_des_cbc_encrypt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13484,7 +13538,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_k5crypto_mit_des_cbc_encrypt" >&5
 $as_echo "$ac_cv_lib_k5crypto_mit_des_cbc_encrypt" >&6; }
-if test "x$ac_cv_lib_k5crypto_mit_des_cbc_encrypt" = x""yes; then :
+if test "x$ac_cv_lib_k5crypto_mit_des_cbc_encrypt" = xyes; then :
   have_k5crypto=yes
 else
   have_k5crypto=no
@@ -13499,7 +13553,7 @@
   fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_init_context in 
-lkrb5" >&5
 $as_echo_n "checking for krb5_init_context in -lkrb5... " >&6; }
-if test "${ac_cv_lib_krb5_krb5_init_context+set}" = set; then :
+if ${ac_cv_lib_krb5_krb5_init_context+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13533,7 +13587,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_krb5_krb5_init_context" >&5
 $as_echo "$ac_cv_lib_krb5_krb5_init_context" >&6; }
-if test "x$ac_cv_lib_krb5_krb5_init_context" = x""yes; then :
+if test "x$ac_cv_lib_krb5_krb5_init_context" = xyes; then :
   have_krb5=yes
 else
   have_krb5=no
@@ -13549,7 +13603,7 @@
     if test "${with_kerberos5}" = no; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for des_cbc_encrypt in 
-ldes425" >&5
 $as_echo_n "checking for des_cbc_encrypt in -ldes425... " >&6; }
-if test "${ac_cv_lib_des425_des_cbc_encrypt+set}" = set; then :
+if ${ac_cv_lib_des425_des_cbc_encrypt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13583,7 +13637,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_des425_des_cbc_encrypt" >&5
 $as_echo "$ac_cv_lib_des425_des_cbc_encrypt" >&6; }
-if test "x$ac_cv_lib_des425_des_cbc_encrypt" = x""yes; then :
+if test "x$ac_cv_lib_des425_des_cbc_encrypt" = xyes; then :
   have_des425=yes
 else
   have_des425=no
@@ -13598,7 +13652,7 @@
     else
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for des_cbc_encrypt in 
-ldes" >&5
 $as_echo_n "checking for des_cbc_encrypt in -ldes... " >&6; }
-if test "${ac_cv_lib_des_des_cbc_encrypt+set}" = set; then :
+if ${ac_cv_lib_des_des_cbc_encrypt+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13632,7 +13686,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: 
$ac_cv_lib_des_des_cbc_encrypt" >&5
 $as_echo "$ac_cv_lib_des_des_cbc_encrypt" >&6; }
-if test "x$ac_cv_lib_des_des_cbc_encrypt" = x""yes; then :
+if test "x$ac_cv_lib_des_des_cbc_encrypt" = xyes; then :
   have_des=yes
 else
   have_des=no
@@ -13648,7 +13702,7 @@
     fi
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb_get_cred in 
-lkrb4" >&5
 $as_echo_n "checking for krb_get_cred in -lkrb4... " >&6; }
-if test "${ac_cv_lib_krb4_krb_get_cred+set}" = set; then :
+if ${ac_cv_lib_krb4_krb_get_cred+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13682,7 +13736,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_krb4_krb_get_cred" 
>&5
 $as_echo "$ac_cv_lib_krb4_krb_get_cred" >&6; }
-if test "x$ac_cv_lib_krb4_krb_get_cred" = x""yes; then :
+if test "x$ac_cv_lib_krb4_krb_get_cred" = xyes; then :
   have_krb4=yes
 else
   have_krb4=no
@@ -13697,7 +13751,7 @@
     else
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb_get_cred in 
-lkrb" >&5
 $as_echo_n "checking for krb_get_cred in -lkrb... " >&6; }
-if test "${ac_cv_lib_krb_krb_get_cred+set}" = set; then :
+if ${ac_cv_lib_krb_krb_get_cred+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13731,7 +13785,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_krb_krb_get_cred" 
>&5
 $as_echo "$ac_cv_lib_krb_krb_get_cred" >&6; }
-if test "x$ac_cv_lib_krb_krb_get_cred" = x""yes; then :
+if test "x$ac_cv_lib_krb_krb_get_cred" = xyes; then :
   have_krb=yes
 else
   have_krb=no
@@ -13751,13 +13805,13 @@
     for ac_header in krb5.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "krb5.h" "ac_cv_header_krb5_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_krb5_h" = x""yes; then :
+if test "x$ac_cv_header_krb5_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_KRB5_H 1
 _ACEOF
  ac_fn_c_check_member "$LINENO" "krb5_error" "text" 
"ac_cv_member_krb5_error_text" "#include <krb5.h>
 "
-if test "x$ac_cv_member_krb5_error_text" = x""yes; then :
+if test "x$ac_cv_member_krb5_error_text" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_KRB5_ERROR_TEXT 1
@@ -13767,7 +13821,7 @@
 fi
 ac_fn_c_check_member "$LINENO" "krb5_error" "e_text" 
"ac_cv_member_krb5_error_e_text" "#include <krb5.h>
 "
-if test "x$ac_cv_member_krb5_error_e_text" = x""yes; then :
+if test "x$ac_cv_member_krb5_error_e_text" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_KRB5_ERROR_E_TEXT 1
@@ -13784,7 +13838,7 @@
     for ac_header in des.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "des.h" "ac_cv_header_des_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_des_h" = x""yes; then :
+if test "x$ac_cv_header_des_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_DES_H 1
 _ACEOF
@@ -13793,7 +13847,7 @@
   for ac_header in kerberosIV/des.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "kerberosIV/des.h" 
"ac_cv_header_kerberosIV_des_h" "$ac_includes_default"
-if test "x$ac_cv_header_kerberosIV_des_h" = x""yes; then :
+if test "x$ac_cv_header_kerberosIV_des_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_KERBEROSIV_DES_H 1
 _ACEOF
@@ -13802,7 +13856,7 @@
   for ac_header in kerberos/des.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "kerberos/des.h" 
"ac_cv_header_kerberos_des_h" "$ac_includes_default"
-if test "x$ac_cv_header_kerberos_des_h" = x""yes; then :
+if test "x$ac_cv_header_kerberos_des_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_KERBEROS_DES_H 1
 _ACEOF
@@ -13822,7 +13876,7 @@
     for ac_header in krb.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "krb.h" "ac_cv_header_krb_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_krb_h" = x""yes; then :
+if test "x$ac_cv_header_krb_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_KRB_H 1
 _ACEOF
@@ -13831,7 +13885,7 @@
   for ac_header in kerberosIV/krb.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "kerberosIV/krb.h" 
"ac_cv_header_kerberosIV_krb_h" "$ac_includes_default"
-if test "x$ac_cv_header_kerberosIV_krb_h" = x""yes; then :
+if test "x$ac_cv_header_kerberosIV_krb_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_KERBEROSIV_KRB_H 1
 _ACEOF
@@ -13840,7 +13894,7 @@
   for ac_header in kerberos/krb.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "kerberos/krb.h" 
"ac_cv_header_kerberos_krb_h" "$ac_includes_default"
-if test "x$ac_cv_header_kerberos_krb_h" = x""yes; then :
+if test "x$ac_cv_header_kerberos_krb_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_KERBEROS_KRB_H 1
 _ACEOF
@@ -13861,7 +13915,7 @@
   for ac_header in com_err.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "com_err.h" "ac_cv_header_com_err_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_com_err_h" = x""yes; then :
+if test "x$ac_cv_header_com_err_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_COM_ERR_H 1
 _ACEOF
@@ -13882,7 +13936,7 @@
 # to return localized messages.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dgettext in -lintl" >&5
 $as_echo_n "checking for dgettext in -lintl... " >&6; }
-if test "${ac_cv_lib_intl_dgettext+set}" = set; then :
+if ${ac_cv_lib_intl_dgettext+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -13916,7 +13970,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_intl_dgettext" >&5
 $as_echo "$ac_cv_lib_intl_dgettext" >&6; }
-if test "x$ac_cv_lib_intl_dgettext" = x""yes; then :
+if test "x$ac_cv_lib_intl_dgettext" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBINTL 1
 _ACEOF
@@ -13928,7 +13982,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether localtime caches TZ" 
>&5
 $as_echo_n "checking whether localtime caches TZ... " >&6; }
-if test "${emacs_cv_localtime_cache+set}" = set; then :
+if ${emacs_cv_localtime_cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test x$ac_cv_func_tzset = xyes; then
@@ -13987,7 +14041,7 @@
   for ac_func in gettimeofday
 do :
   ac_fn_c_check_func "$LINENO" "gettimeofday" "ac_cv_func_gettimeofday"
-if test "x$ac_cv_func_gettimeofday" = x""yes; then :
+if test "x$ac_cv_func_gettimeofday" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_GETTIMEOFDAY 1
 _ACEOF
@@ -13998,7 +14052,7 @@
   if test $ac_cv_func_gettimeofday = yes; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether gettimeofday can 
accept two arguments" >&5
 $as_echo_n "checking whether gettimeofday can accept two arguments... " >&6; }
-if test "${emacs_cv_gettimeofday_two_arguments+set}" = set; then :
+if ${emacs_cv_gettimeofday_two_arguments+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -14042,7 +14096,7 @@
 
 ok_so_far=yes
 ac_fn_c_check_func "$LINENO" "socket" "ac_cv_func_socket"
-if test "x$ac_cv_func_socket" = x""yes; then :
+if test "x$ac_cv_func_socket" = xyes; then :
 
 else
   ok_so_far=no
@@ -14050,7 +14104,7 @@
 
 if test $ok_so_far = yes; then
   ac_fn_c_check_header_mongrel "$LINENO" "netinet/in.h" 
"ac_cv_header_netinet_in_h" "$ac_includes_default"
-if test "x$ac_cv_header_netinet_in_h" = x""yes; then :
+if test "x$ac_cv_header_netinet_in_h" = xyes; then :
 
 else
   ok_so_far=no
@@ -14060,7 +14114,7 @@
 fi
 if test $ok_so_far = yes; then
   ac_fn_c_check_header_mongrel "$LINENO" "arpa/inet.h" 
"ac_cv_header_arpa_inet_h" "$ac_includes_default"
-if test "x$ac_cv_header_arpa_inet_h" = x""yes; then :
+if test "x$ac_cv_header_arpa_inet_h" = xyes; then :
 
 else
   ok_so_far=no
@@ -14094,7 +14148,7 @@
 fi
 
 ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default"
-if test "x$ac_cv_type_pid_t" = x""yes; then :
+if test "x$ac_cv_type_pid_t" = xyes; then :
 
 else
 
@@ -14107,7 +14161,7 @@
 for ac_header in vfork.h
 do :
   ac_fn_c_check_header_mongrel "$LINENO" "vfork.h" "ac_cv_header_vfork_h" 
"$ac_includes_default"
-if test "x$ac_cv_header_vfork_h" = x""yes; then :
+if test "x$ac_cv_header_vfork_h" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_VFORK_H 1
 _ACEOF
@@ -14120,8 +14174,7 @@
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-eval as_val=\$$as_ac_var
-   if test "x$as_val" = x""yes; then :
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -14132,7 +14185,7 @@
 if test "x$ac_cv_func_fork" = xyes; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working fork" >&5
 $as_echo_n "checking for working fork... " >&6; }
-if test "${ac_cv_func_fork_works+set}" = set; then :
+if ${ac_cv_func_fork_works+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
@@ -14185,7 +14238,7 @@
 if test "x$ac_cv_func_vfork" = xyes; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working vfork" >&5
 $as_echo_n "checking for working vfork... " >&6; }
-if test "${ac_cv_func_vfork_works+set}" = set; then :
+if ${ac_cv_func_vfork_works+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "$cross_compiling" = yes; then :
@@ -14321,7 +14374,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nl_langinfo and CODESET" 
>&5
 $as_echo_n "checking for nl_langinfo and CODESET... " >&6; }
-if test "${emacs_cv_langinfo_codeset+set}" = set; then :
+if ${emacs_cv_langinfo_codeset+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -14353,7 +14406,7 @@
 fi
 
 ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" 
"$ac_includes_default"
-if test "x$ac_cv_type_size_t" = x""yes; then :
+if test "x$ac_cv_type_size_t" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_SIZE_T 1
@@ -14365,7 +14418,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mbstate_t" >&5
 $as_echo_n "checking for mbstate_t... " >&6; }
-if test "${ac_cv_type_mbstate_t+set}" = set; then :
+if ${ac_cv_type_mbstate_t+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -14401,7 +14454,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C restrict keyword" >&5
 $as_echo_n "checking for C restrict keyword... " >&6; }
-if test "${emacs_cv_c_restrict+set}" = set; then :
+if ${emacs_cv_c_restrict+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -14455,7 +14508,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C restricted array 
declarations" >&5
 $as_echo_n "checking for C restricted array declarations... " >&6; }
-if test "${emacs_cv_c_restrict_arr+set}" = set; then :
+if ${emacs_cv_c_restrict_arr+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -14495,14 +14548,14 @@
    && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
    && test x"`echo $CFLAGS | grep '\-O[23]'`" != x \
    && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
-   as_fn_error "GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'." 
"$LINENO" 5
+   as_fn_error $? "GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'." 
"$LINENO" 5
 fi
 
 #### Find out which version of Emacs this is.
 version=`grep 'const char emacs_version' ${srcdir}/src/emacs.c \
         | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`
 if test x"${version}" = x; then
-  as_fn_error "can't find current emacs version in \`${srcdir}/src/emacs.c'." 
"$LINENO" 5
+  as_fn_error $? "can't find current emacs version in 
\`${srcdir}/src/emacs.c'." "$LINENO" 5
 fi
 if test x"${version}" != x"$PACKAGE_VERSION"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: version mismatch between 
\`${srcdir}/configure.in' and \`${srcdir}/src/emacs.c'." >&5
@@ -15054,10 +15107,21 @@
      :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
-    test "x$cache_file" != "x/dev/null" &&
+    if test "x$cache_file" != "x/dev/null"; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
 $as_echo "$as_me: updating cache $cache_file" >&6;}
-    cat confcache >$cache_file
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+       cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+         mv -f confcache "$cache_file"$$ &&
+         mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+         mv -f confcache "$cache_file" ;;
+       esac
+      fi
+    fi
   else
     { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache 
$cache_file" >&5
 $as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
@@ -15073,6 +15137,7 @@
 
 ac_libobjs=
 ac_ltlibobjs=
+U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
@@ -15089,7 +15154,7 @@
 
 
 
-: ${CONFIG_STATUS=./config.status}
+: "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
@@ -15190,6 +15255,7 @@
 IFS=" ""       $as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
 case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -15235,19 +15301,19 @@
 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 
-# as_fn_error ERROR [LINENO LOG_FD]
-# ---------------------------------
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
 # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
 # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with status $?, using 1 if that was 0.
+# script with STATUS, using 1 if that was 0.
 as_fn_error ()
 {
-  as_status=$?; test $as_status -eq 0 && as_status=1
-  if test "$3"; then
-    as_lineno=${as_lineno-"$2"} 
as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} 
as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $1" >&2
+  $as_echo "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -15443,7 +15509,7 @@
       test -d "$as_dir" && break
     done
     test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
 
 
 } # as_fn_mkdir_p
@@ -15497,7 +15563,7 @@
 # values after options handling.
 ac_log="
 This file was extended by emacs $as_me 24.0.50, which was
-generated by GNU Autoconf 2.65.  Invocation command line was
+generated by GNU Autoconf 2.68.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -15563,10 +15629,10 @@
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; 
s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
 emacs config.status 24.0.50
-configured by $0, generated by GNU Autoconf 2.65,
+configured by $0, generated by GNU Autoconf 2.68,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2009 Free Software Foundation, Inc.
+Copyright (C) 2010 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -15582,11 +15648,16 @@
 while test $# != 0
 do
   case $1 in
-  --*=*)
+  --*=?*)
     ac_option=`expr "X$1" : 'X\([^=]*\)='`
     ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
     ac_shift=:
     ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
   *)
     ac_option=$1
     ac_optarg=$2
@@ -15608,6 +15679,7 @@
     $ac_shift
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
@@ -15620,7 +15692,7 @@
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error "ambiguous option: \`$1'
+    as_fn_error $? "ambiguous option: \`$1'
 Try \`$0 --help' for more information.";;
   --help | --hel | -h )
     $as_echo "$ac_cs_usage"; exit ;;
@@ -15629,7 +15701,7 @@
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error "unrecognized option: \`$1'
+  -*) as_fn_error $? "unrecognized option: \`$1'
 Try \`$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
@@ -15697,7 +15769,7 @@
     "leim/Makefile") CONFIG_FILES="$CONFIG_FILES leim/Makefile" ;;
     "default") CONFIG_COMMANDS="$CONFIG_COMMANDS default" ;;
 
-  *) as_fn_error "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -15720,9 +15792,10 @@
 # after its creation but before its name has been assigned to `$tmp'.
 $debug ||
 {
-  tmp=
+  tmp= ac_tmp=
   trap 'exit_status=$?
-  { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
 ' 0
   trap 'as_fn_exit 1' 1 2 13 15
 }
@@ -15730,12 +15803,13 @@
 
 {
   tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
-  test -n "$tmp" && test -d "$tmp"
+  test -d "$tmp"
 }  ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
-} || as_fn_error "cannot create a temporary directory in ." "$LINENO" 5
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -15769,24 +15843,24 @@
 fi
 ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
 if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
-  ac_cs_awk_cr='\r'
+  ac_cs_awk_cr='\\r'
 else
   ac_cs_awk_cr=$ac_cr
 fi
 
-echo 'BEGIN {' >"$tmp/subs1.awk" &&
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
 _ACEOF
 
 # Create commands to substitute file output variables.
 {
   echo "cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1" &&
-  echo 'cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&' &&
+  echo 'cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&' &&
   echo "$ac_subst_files" | sed 's/.*/F["&"]="$&"/' &&
   echo "_ACAWK" &&
   echo "_ACEOF"
 } >conf$$files.sh &&
 . ./conf$$files.sh ||
-  as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
 rm -f conf$$files.sh
 
 {
@@ -15794,18 +15868,18 @@
   echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
   echo "_ACEOF"
 } >conf$$subs.sh ||
-  as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '$'`
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
-    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
 
   ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
   if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
-    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -15813,7 +15887,7 @@
 rm -f conf$$subs.sh
 
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
 _ACEOF
 sed -n '
 h
@@ -15861,7 +15935,7 @@
 rm -f conf$$subs.awk
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
-cat >>"\$tmp/subs1.awk" <<_ACAWK &&
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
   for (key in S) S_is_set[key] = 1
   FS = ""
   \$ac_cs_awk_pipe_init
@@ -15899,21 +15973,29 @@
   sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
 else
   cat
-fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
-  || as_fn_error "could not setup config files machinery" "$LINENO" 5
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
-# VPATH may cause trouble with some makes, so we remove $(srcdir),
-# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
 # trailing colons and then remove the whole line if VPATH becomes empty
 # (actually we leave an empty line to preserve line numbers).
 if test "x$srcdir" = x.; then
-  ac_vpsub='/^[         ]*VPATH[        ]*=/{
-s/:*\$(srcdir):*/:/
-s/:*\${srcdir}:*/:/
-s/:address@hidden@:*/:/
-s/^\([^=]*=[    ]*\):*/\1/
+  ac_vpsub='/^[         ]*VPATH[        ]*=[    ]*/{
+h
+s///
+s/^/:/
+s/[     ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
 s/:*$//
+x
+s/\(=[  ]*\).*/\1/
+G
+s/\n//
 s/^[^=]*=[      ]*$//
 }'
 fi
@@ -15925,7 +16007,7 @@
 # No need to generate them if there are no CONFIG_HEADERS.
 # This happens for instance with `./config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
-cat >"$tmp/defines.awk" <<\_ACAWK ||
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
@@ -15937,11 +16019,11 @@
 # handling of long lines.
 ac_delim='%!_!# '
 for ac_last_try in false false :; do
-  ac_t=`sed -n "/$ac_delim/p" confdefs.h`
-  if test -z "$ac_t"; then
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
     break
   elif $ac_last_try; then
-    as_fn_error "could not make $CONFIG_HEADERS" "$LINENO" 5
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -16026,7 +16108,7 @@
 _ACAWK
 _ACEOF
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  as_fn_error "could not setup config headers machinery" "$LINENO" 5
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
 fi # test -n "$CONFIG_HEADERS"
 
 
@@ -16039,7 +16121,7 @@
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -16058,7 +16140,7 @@
     for ac_f
     do
       case $ac_f in
-      -) ac_f="$tmp/stdin";;
+      -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
         # (if the path is not absolute).  The absolute path cannot be 
DOS-style,
         # because $ac_f cannot contain `:'.
@@ -16067,7 +16149,7 @@
           [\\/$]*) false;;
           *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
           esac ||
-          as_fn_error "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+          as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; 
esac
       as_fn_append ac_file_inputs " '$ac_f'"
@@ -16093,8 +16175,8 @@
     esac
 
     case $ac_tag in
-    *:-:* | *:-) cat >"$tmp/stdin" \
-      || as_fn_error "could not create $ac_file" "$LINENO" 5 ;;
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
   esac
@@ -16226,26 +16308,27 @@
 "
 eval sed \"\$ac_sed_extra\" "$ac_file_inputs" |
 if $ac_cs_awk_getline; then
-  $AWK -f "$tmp/subs.awk"
+  $AWK -f "$ac_tmp/subs.awk"
 else
-  $AWK -f "$tmp/subs.awk" | $SHELL
-fi >$tmp/out \
-  || as_fn_error "could not create $ac_file" "$LINENO" 5
+  $AWK -f "$ac_tmp/subs.awk" | $SHELL
+fi \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[         ]*datarootdir[  ]*:*=/p' "$tmp/out"`; test -z 
"$ac_out"; } &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[         ]*datarootdir[  ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a 
reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined." >&5
+which seems to be undefined.  Please make sure it is defined" >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable 
\`datarootdir'
-which seems to be undefined.  Please make sure it is defined." >&2;}
+which seems to be undefined.  Please make sure it is defined" >&2;}
 
-  rm -f "$tmp/stdin"
+  rm -f "$ac_tmp/stdin"
   case $ac_file in
-  -) cat "$tmp/out" && rm -f "$tmp/out";;
-  *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
   esac \
-  || as_fn_error "could not create $ac_file" "$LINENO" 5
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
  ;;
   :H)
   #
@@ -16254,21 +16337,21 @@
   if test x"$ac_file" != x-; then
     {
       $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs"
-    } >"$tmp/config.h" \
-      || as_fn_error "could not create $ac_file" "$LINENO" 5
-    if diff "$ac_file" "$tmp/config.h" >/dev/null 2>&1; then
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
 $as_echo "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
-      mv "$tmp/config.h" "$ac_file" \
-       || as_fn_error "could not create $ac_file" "$LINENO" 5
+      mv "$ac_tmp/config.h" "$ac_file" \
+       || as_fn_error $? "could not create $ac_file" "$LINENO" 5
     fi
   else
     $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs" \
-      || as_fn_error "could not create -" "$LINENO" 5
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
   fi
  ;;
 
@@ -16305,7 +16388,7 @@
 ac_clean_files=$ac_clean_files_save
 
 test $ac_write_fail = 0 ||
-  as_fn_error "write failure creating $CONFIG_STATUS" "$LINENO" 5
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
 
 
 # configure is writing to config.log, and then calls config.status.
@@ -16326,7 +16409,7 @@
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit $?
+  $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; 
then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: 
$ac_unrecognized_opts" >&5

=== modified file 'configure.in'
--- a/configure.in      2011-01-05 07:10:47 +0000
+++ b/configure.in      2011-01-05 13:09:07 +0000
@@ -5,7 +5,7 @@
 dnl If you changed any AC_DEFINES, also run autoheader.
 dnl
 dnl  Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2003, 2004,
-dnl    2005, 2006, 2007, 2008, 2009, 2010
+dnl    2005, 2006, 2007, 2008, 2009, 2010, 2011
 dnl    Free Software Foundation, Inc.
 dnl
 dnl  This file is part of GNU Emacs.
@@ -2635,6 +2635,17 @@
 memset memcmp difftime memcpy mempcpy mblen mbrlen posix_memalign \
 cfmakeraw cfsetspeed isnan copysign __executable_start)
 
+dnl Cannot use AC_CHECK_FUNCS
+AC_CACHE_CHECK([for __builtin_unwind_init],
+              emacs_cv_func___builtin_unwind_init,
+[AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
+               emacs_cv_func___builtin_unwind_init=yes,
+               emacs_cv_func___builtin_unwind_init=no)])
+if test $emacs_cv_func___builtin_unwind_init = yes; then
+  AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
+           [Define to 1 if you have the `__builtin_unwind_init' function.])
+fi
+
 AC_CHECK_HEADERS(sys/un.h)
 
 AC_FUNC_MKTIME

=== modified file 'src/ChangeLog'
--- a/src/ChangeLog     2011-01-04 11:11:43 +0000
+++ b/src/ChangeLog     2011-01-05 13:09:07 +0000
@@ -1,3 +1,7 @@
+2011-01-05  Andreas Schwab  <address@hidden>
+
+       * alloc.c (mark_stack): Use __builtin_unwind_init if available.
+
 2011-01-04  Jan Moringen  <address@hidden>
 
        * dbusbind.c (Fdbus_register_method): Added optional parameter
@@ -29431,7 +29435,7 @@
 ;; coding: utf-8
 ;; End:
 
-  Copyright (C) 2007, 2008, 2009, 2010
+  Copyright (C) 2007, 2008, 2009, 2010, 2011
     Free Software Foundation, Inc.
 
   This file is part of GNU Emacs.

=== modified file 'src/alloc.c'
--- a/src/alloc.c       2010-12-19 05:43:42 +0000
+++ b/src/alloc.c       2011-01-05 13:09:07 +0000
@@ -1,6 +1,6 @@
 /* Storage allocation and gc for GNU Emacs Lisp interpreter.
    Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999,
-      2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+      2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
       Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
@@ -4222,7 +4222,7 @@
    can prove that.  */
 
 static void
-test_setjmp ()
+test_setjmp (void)
 {
   char buf[10];
   register int x;
@@ -4270,7 +4270,7 @@
 /* Abort if anything GCPRO'd doesn't survive the GC.  */
 
 static void
-check_gcpros ()
+check_gcpros (void)
 {
   struct gcpro *p;
   int i;
@@ -4286,7 +4286,7 @@
 #elif GC_MARK_STACK == GC_USE_GCPROS_CHECK_ZOMBIES
 
 static void
-dump_zombies ()
+dump_zombies (void)
 {
   int i;
 
@@ -4321,6 +4321,11 @@
    have to be true!  It must be verified for each system, possibly
    by taking a look at the source code of setjmp.
 
+   If __builtin_unwind_init is available (defined by GCC >= 2.8) we
+   can use it as a machine independent method to store all registers
+   to the stack.  In this case the macros described in the previous
+   two paragraphs are not used.
+
    Stack Layout
 
    Architectures differ in the way their processor stack is organized.
@@ -4359,6 +4364,13 @@
   volatile int stack_grows_down_p = (char *) &j > (char *) stack_base;
   void *end;
 
+#ifdef HAVE___BUILTIN_UNWIND_INIT
+  /* Force callee-saved registers and register windows onto the stack.
+     This is the preferred method if available, obviating the need for
+     machine dependent methods.  */
+  __builtin_unwind_init ();
+  end = &end;
+#else /* not HAVE___BUILTIN_UNWIND_INIT */
   /* This trick flushes the register windows so that all the state of
      the process is contained in the stack.  */
   /* Fixme: Code in the Boehm GC suggests flushing (with `flushrs') is
@@ -4394,6 +4406,7 @@
   setjmp (j.j);
   end = stack_grows_down_p ? (char *) &j + sizeof j : (char *) &j;
 #endif /* not GC_SAVE_REGISTERS_ON_STACK */
+#endif /* not HAVE___BUILTIN_UNWIND_INIT */
 
   /* This assumes that the stack is a contiguous region in memory.  If
      that's not the case, something has to be done here to iterate

=== modified file 'src/config.in'
--- a/src/config.in     2010-12-13 15:27:36 +0000
+++ b/src/config.in     2011-01-05 13:09:07 +0000
@@ -816,6 +816,9 @@
 /* Define to 1 if you want to use the X window system. */
 #undef HAVE_X_WINDOWS
 
+/* Define to 1 if you have the `__builtin_unwind_init' function. */
+#undef HAVE___BUILTIN_UNWIND_INIT
+
 /* Define to 1 if you have the `__executable_start' function. */
 #undef HAVE___EXECUTABLE_START
 
@@ -1053,6 +1056,9 @@
 /* Define to `int' if <sys/types.h> does not define. */
 #undef pid_t
 
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
+
 /* Define to any substitute for sys_siglist. */
 #undef sys_siglist
 


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