* unix/configure: Regen.

	* unix/tcl.m4 (SC_PROG_TCLSH, SC_BUILD_TCLSH):
	* win/configure: Regen.
	* win/tcl.m4 (SC_PROG_TCLSH, SC_BUILD_TCLSH):
	Split confused search for tclsh on PATH and
	build and install locations into two macros.
	SC_PROG_TCLSH searches just the PATH.
	SC_BUILD_TCLSH determines the name of the tclsh
	executable in the Tcl build directory.
	[Tcl bug 1160114]
	[Tcl patch 1244153]

2 files changed, 262 insertions, 465 deletions

diff --git a/win/configure b/win/configure
index cadddbe..9bf3fbb 100755
--- a/win/configure
+++ b/win/configure
@@ -1,8 +1,9 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.59.
+# Generated by GNU Autoconf 2.57.
 #
-# Copyright (C) 2003 Free Software Foundation, Inc.
+# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
 ## --------------------- ##
@@ -19,10 +20,9 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
 elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
-DUALCASE=1; export DUALCASE # for MKS sh
 
 # Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
   as_unset=unset
 else
   as_unset=false
@@ -41,7 +41,7 @@ for as_var in \
   LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
   LC_TELEPHONE LC_TIME
 do
-  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
     eval $as_var=C; export $as_var
   else
     $as_unset $as_var
@@ -218,17 +218,16 @@ rm -f conf$$ conf$$.exe conf$$.file
 if mkdir -p . 2>/dev/null; then
   as_mkdir_p=:
 else
-  test -d ./-p && rmdir ./-p
   as_mkdir_p=false
 fi
 
 as_executable_p="test -f"
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
 
 
 # IFS
@@ -668,7 +667,7 @@ done
 
 # Be sure to have absolute paths.
 for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
-	      localstatedir libdir includedir oldincludedir infodir mandir
+              localstatedir libdir includedir oldincludedir infodir mandir
 do
   eval ac_val=$`echo $ac_var`
   case $ac_val in
@@ -708,10 +707,10 @@ if test -z "$srcdir"; then
   # Try the directory containing this script, then its parent.
   ac_confdir=`(dirname "$0") 2>/dev/null ||
 $as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$0" : 'X\(//\)[^/]' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| \
-	 .     : '\(.\)' 2>/dev/null ||
+         X"$0" : 'X\(//\)[^/]' \| \
+         X"$0" : 'X\(//\)$' \| \
+         X"$0" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
 echo X"$0" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
   	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
@@ -803,9 +802,9 @@ _ACEOF
   cat <<_ACEOF
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
-			  [$ac_default_prefix]
+                          [$ac_default_prefix]
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
-			  [PREFIX]
+                          [PREFIX]
 
 By default, \`make install' will install all the files in
 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
@@ -895,45 +894,12 @@ case $srcdir in
     ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
     ac_top_srcdir=$ac_top_builddir$srcdir ;;
 esac
-
-# Do not use `cd foo && pwd` to compute absolute paths, because
-# the directories may not exist.
-case `pwd` in
-.) ac_abs_builddir="$ac_dir";;
-*)
-  case "$ac_dir" in
-  .) ac_abs_builddir=`pwd`;;
-  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
-  *) ac_abs_builddir=`pwd`/"$ac_dir";;
-  esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_top_builddir=${ac_top_builddir}.;;
-*)
-  case ${ac_top_builddir}. in
-  .) ac_abs_top_builddir=$ac_abs_builddir;;
-  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
-  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
-  esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_srcdir=$ac_srcdir;;
-*)
-  case $ac_srcdir in
-  .) ac_abs_srcdir=$ac_abs_builddir;;
-  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
-  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
-  esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_top_srcdir=$ac_top_srcdir;;
-*)
-  case $ac_top_srcdir in
-  .) ac_abs_top_srcdir=$ac_abs_builddir;;
-  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
-  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
-  esac;;
-esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
 
     cd $ac_dir
     # Check for guested configure; otherwise get Cygnus style configure.
@@ -944,7 +910,7 @@ esac
       echo
       $SHELL $ac_srcdir/configure  --help=recursive
     elif test -f $ac_srcdir/configure.ac ||
-	   test -f $ac_srcdir/configure.in; then
+           test -f $ac_srcdir/configure.in; then
       echo
       $ac_configure --help
     else
@@ -958,7 +924,8 @@ test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
 
-Copyright (C) 2003 Free Software Foundation, Inc.
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
+Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -970,7 +937,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.59.  Invocation command line was
+generated by GNU Autoconf 2.57.  Invocation command line was
 
   $ $0 $@
 
@@ -1047,19 +1014,19 @@ do
     2)
       ac_configure_args1="$ac_configure_args1 '$ac_arg'"
       if test $ac_must_keep_next = true; then
-	ac_must_keep_next=false # Got value, back to normal.
+        ac_must_keep_next=false # Got value, back to normal.
       else
-	case $ac_arg in
-	  *=* | --config-cache | -C | -disable-* | --disable-* \
-	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
-	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
-	  | -with-* | --with-* | -without-* | --without-* | --x)
-	    case "$ac_configure_args0 " in
-	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
-	    esac
-	    ;;
-	  -* ) ac_must_keep_next=true ;;
-	esac
+        case $ac_arg in
+          *=* | --config-cache | -C | -disable-* | --disable-* \
+          | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+          | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+          | -with-* | --with-* | -without-* | --without-* | --x)
+            case "$ac_configure_args0 " in
+              "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+            esac
+            ;;
+          -* ) ac_must_keep_next=true ;;
+        esac
       fi
       ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
       # Get rid of the leading space.
@@ -1093,12 +1060,12 @@ _ASBOX
     case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
     *ac_space=\ *)
       sed -n \
-	"s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
+        "s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
+    	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
       ;;
     *)
       sed -n \
-	"s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+        "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
       ;;
     esac;
 }
@@ -1127,7 +1094,7 @@ _ASBOX
       for ac_var in $ac_subst_files
       do
 	eval ac_val=$`echo $ac_var`
-	echo "$ac_var='"'"'$ac_val'"'"'"
+        echo "$ac_var='"'"'$ac_val'"'"'"
       done | sort
       echo
     fi
@@ -1146,7 +1113,7 @@ _ASBOX
       echo "$as_me: caught signal $ac_signal"
     echo "$as_me: exit $exit_status"
   } >&5
-  rm -f core *.core &&
+  rm -f core core.* *.core &&
   rm -rf conftest* confdefs* conf$$* $ac_clean_files &&
     exit $exit_status
      ' 0
@@ -1226,7 +1193,7 @@ fi
 # value.
 ac_cache_corrupted=false
 for ac_var in `(set) 2>&1 |
-	       sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
+               sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
   eval ac_old_set=\$ac_cv_env_${ac_var}_set
   eval ac_new_set=\$ac_env_${ac_var}_set
   eval ac_old_val="\$ac_cv_env_${ac_var}_value"
@@ -1243,13 +1210,13 @@ echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
-	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+        { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
+        { echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
 echo "$as_me:   former value:  $ac_old_val" >&2;}
-	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
+        { echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
 echo "$as_me:   current value: $ac_new_val" >&2;}
-	ac_cache_corrupted=:
+        ac_cache_corrupted=:
       fi;;
   esac
   # Pass precious variables to config.status.
@@ -1681,6 +1648,7 @@ ac_compiler=`set X $ac_compile; echo $2`
   (exit $ac_status); }
 
 cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -1700,8 +1668,8 @@ ac_clean_files="$ac_clean_files a.out a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-echo "$as_me:$LINENO: checking for C compiler default output file name" >&5
-echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6
+echo "$as_me:$LINENO: checking for C compiler default output" >&5
+echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
   (eval $ac_link_default) 2>&5
@@ -1721,23 +1689,23 @@ do
   test -f "$ac_file" || continue
   case $ac_file in
     *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
-	;;
+        ;;
     conftest.$ac_ext )
-	# This is the source file.
-	;;
+        # This is the source file.
+        ;;
     [ab].out )
-	# We found the default executable, but exeext='' is most
-	# certainly right.
-	break;;
+        # We found the default executable, but exeext='' is most
+        # certainly right.
+        break;;
     *.* )
-	ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
-	# FIXME: I believe we export ac_cv_exeext for Libtool,
-	# but it would be cool to find out if it's true.  Does anybody
-	# maintain Libtool? --akim.
-	export ac_cv_exeext
-	break;;
+        ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+        # FIXME: I believe we export ac_cv_exeext for Libtool,
+        # but it would be cool to find out if it's true.  Does anybody
+        # maintain Libtool? --akim.
+        export ac_cv_exeext
+        break;;
     * )
-	break;;
+        break;;
   esac
 done
 else
@@ -1811,8 +1779,8 @@ for ac_file in conftest.exe conftest conftest.*; do
   case $ac_file in
     *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
     *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
-	  export ac_cv_exeext
-	  break;;
+          export ac_cv_exeext
+          break;;
     * ) break;;
   esac
 done
@@ -1837,6 +1805,7 @@ if test "${ac_cv_objext+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -1887,6 +1856,7 @@ if test "${ac_cv_c_compiler_gnu+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -1906,21 +1876,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -1933,7 +1893,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 ac_compiler_gnu=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
@@ -1949,6 +1909,7 @@ if test "${ac_cv_prog_cc_g+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -1965,21 +1926,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -1992,7 +1943,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 ac_cv_prog_cc_g=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
 echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
@@ -2019,6 +1970,7 @@ else
   ac_cv_prog_cc_stdc=no
 ac_save_CC=$CC
 cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2046,16 +1998,6 @@ static char *f (char * (*g) (char **, int), char **p, ...)
   va_end (v);
   return s;
 }
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
-   function prototypes and stuff, but not '\xHH' hex character constants.
-   These don't provoke an error unfortunately, instead are silently treated
-   as 'x'.  The following induces an error, until -std1 is added to get
-   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
-   array size at least.  It's necessary to write '\x00'==0 to get something
-   that's true only with -std1.  */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
-
 int test (int i, double x);
 struct s1 {int (*f) (int a);};
 struct s2 {int (*f) (double a);};
@@ -2082,21 +2024,11 @@ do
   CC="$ac_save_CC $ac_arg"
   rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2109,7 +2041,7 @@ else
 sed 's/^/| /' conftest.$ac_ext >&5
 
 fi
-rm -f conftest.err conftest.$ac_objext
+rm -f conftest.$ac_objext
 done
 rm -f conftest.$ac_ext conftest.$ac_objext
 CC=$ac_save_CC
@@ -2137,28 +2069,19 @@ cat >conftest.$ac_ext <<_ACEOF
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   for ac_declaration in \
-   '' \
+   ''\
+   '#include <stdlib.h>' \
    'extern "C" void std::exit (int) throw (); using std::exit;' \
    'extern "C" void std::exit (int); using std::exit;' \
    'extern "C" void exit (int) throw ();' \
@@ -2166,13 +2089,14 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
    'void exit (int);'
 do
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_declaration
 #include <stdlib.h>
+$ac_declaration
 int
 main ()
 {
@@ -2183,21 +2107,11 @@ exit (42);
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2210,8 +2124,9 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 continue
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2228,21 +2143,11 @@ exit (42);
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2254,7 +2159,7 @@ else
 sed 's/^/| /' conftest.$ac_ext >&5
 
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 done
 rm -f conftest*
 if test -n "$ac_declaration"; then
@@ -2268,7 +2173,7 @@ else
 sed 's/^/| /' conftest.$ac_ext >&5
 
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -2413,7 +2318,7 @@ fi
 
 echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
 echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
-set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
+set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,./+-,__p_,'`
 if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
@@ -2453,6 +2358,7 @@ if test "${ac_cv_cygwin+set}" = set; then
 else
 
 cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2473,21 +2379,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2500,7 +2396,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 ac_cv_cygwin=yes
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $ac_cv_cygwin" >&5
@@ -2525,6 +2421,7 @@ else
   tcl_cv_seh=no
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2567,7 +2464,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 ( exit $ac_status )
 tcl_cv_seh=no
 fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 
 fi
@@ -2593,6 +2490,7 @@ if test "${tcl_cv_eh_disposition+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2615,21 +2513,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2642,7 +2530,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_eh_disposition=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_eh_disposition" >&5
@@ -2665,6 +2553,7 @@ if test "${tcl_cv_lpfn_decls+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2688,21 +2577,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2715,7 +2594,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_lpfn_decls=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_lpfn_decls" >&5
@@ -2738,6 +2617,7 @@ if test "${tcl_cv_winnt_ignore_void+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2763,21 +2643,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2790,7 +2660,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_winnt_ignore_void=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_winnt_ignore_void" >&5
@@ -2819,6 +2689,7 @@ if test "${tcl_cv_malloc_decl_alloca+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2842,21 +2713,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2869,7 +2730,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_malloc_decl_alloca=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_malloc_decl_alloca" >&5
@@ -2893,6 +2754,7 @@ if test "${tcl_cv_cast_to_union+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2912,21 +2774,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -2939,7 +2791,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_cast_to_union=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_cast_to_union" >&5
@@ -2963,6 +2815,7 @@ if test "${tcl_cv_findex_enums+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -2986,21 +2839,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3013,7 +2856,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_findex_enums=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_findex_enums" >&5
@@ -3035,6 +2878,7 @@ if test "${tcl_cv_mwmo_alertable+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3057,21 +2901,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3084,7 +2918,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 tcl_cv_mwmo_alertable=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_mwmo_alertable" >&5
@@ -3658,6 +3492,7 @@ do
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3668,7 +3503,7 @@ cat >>conftest.$ac_ext <<_ACEOF
 #else
 # include <assert.h>
 #endif
-		     Syntax error
+                     Syntax error
 _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
@@ -3680,7 +3515,6 @@ if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
   else
     ac_cpp_err=
   fi
@@ -3701,6 +3535,7 @@ rm -f conftest.err conftest.$ac_ext
   # OK, works on sane cases.  Now check whether non-existent headers
   # can be detected and how.
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3718,7 +3553,6 @@ if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
   else
     ac_cpp_err=
   fi
@@ -3765,6 +3599,7 @@ do
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3775,7 +3610,7 @@ cat >>conftest.$ac_ext <<_ACEOF
 #else
 # include <assert.h>
 #endif
-		     Syntax error
+                     Syntax error
 _ACEOF
 if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
@@ -3787,7 +3622,6 @@ if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
   else
     ac_cpp_err=
   fi
@@ -3808,6 +3642,7 @@ rm -f conftest.err conftest.$ac_ext
   # OK, works on sane cases.  Now check whether non-existent headers
   # can be detected and how.
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3825,7 +3660,6 @@ if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
   else
     ac_cpp_err=
   fi
@@ -3886,6 +3720,7 @@ if test "${ac_cv_header_stdc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3906,21 +3741,11 @@ main ()
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -3933,11 +3758,12 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 ac_cv_header_stdc=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3959,6 +3785,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3983,6 +3810,7 @@ if test $ac_cv_header_stdc = yes; then
   :
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -3994,9 +3822,9 @@ cat >>conftest.$ac_ext <<_ACEOF
 # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 #else
 # define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
+                   (('a' <= (c) && (c) <= 'i') \
+                     || ('j' <= (c) && (c) <= 'r') \
+                     || ('s' <= (c) && (c) <= 'z'))
 # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
 #endif
 
@@ -4007,7 +3835,7 @@ main ()
   int i;
   for (i = 0; i < 256; i++)
     if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
+        || toupper (i) != TOUPPER (i))
       exit(2);
   exit (0);
 }
@@ -4032,7 +3860,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 ( exit $ac_status )
 ac_cv_header_stdc=no
 fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core core.* *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
 fi
 fi
 fi
@@ -4057,7 +3885,7 @@ fi
 
 
 for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
+                  inttypes.h stdint.h unistd.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_header" >&5
@@ -4066,6 +3894,7 @@ if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -4077,21 +3906,11 @@ $ac_includes_default
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -4104,7 +3923,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 eval "$as_ac_Header=no"
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 fi
 echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
@@ -4131,6 +3950,7 @@ else
 echo "$as_me:$LINENO: checking errno.h usability" >&5
 echo $ECHO_N "checking errno.h usability... $ECHO_C" >&6
 cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -4141,21 +3961,11 @@ $ac_includes_default
 _ACEOF
 rm -f conftest.$ac_objext
 if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+  (eval $ac_compile) 2>&5
   ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+         { ac_try='test -s conftest.$ac_objext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -4168,7 +3978,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 ac_header_compiler=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.$ac_objext conftest.$ac_ext
 echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
 echo "${ECHO_T}$ac_header_compiler" >&6
 
@@ -4176,6 +3986,7 @@ echo "${ECHO_T}$ac_header_compiler" >&6
 echo "$as_me:$LINENO: checking errno.h presence" >&5
 echo $ECHO_N "checking errno.h presence... $ECHO_C" >&6
 cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -4193,7 +4004,6 @@ if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
   else
     ac_cpp_err=
   fi
@@ -4213,32 +4023,33 @@ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
 echo "${ECHO_T}$ac_header_preproc" >&6
 
 # So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
     { echo "$as_me:$LINENO: WARNING: errno.h: accepted by the compiler, rejected by the preprocessor!" >&5
 echo "$as_me: WARNING: errno.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: errno.h: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: errno.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
+    { echo "$as_me:$LINENO: WARNING: errno.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: errno.h: proceeding with the preprocessor's result" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
     ;;
-  no:yes:* )
+  no:yes )
     { echo "$as_me:$LINENO: WARNING: errno.h: present but cannot be compiled" >&5
 echo "$as_me: WARNING: errno.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: errno.h:     check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: errno.h:     check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: errno.h: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: errno.h: see the Autoconf documentation" >&2;}
-    { echo "$as_me:$LINENO: WARNING: errno.h:     section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: errno.h:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: errno.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: errno.h: check for missing prerequisite headers?" >&2;}
     { echo "$as_me:$LINENO: WARNING: errno.h: proceeding with the preprocessor's result" >&5
 echo "$as_me: WARNING: errno.h: proceeding with the preprocessor's result" >&2;}
-    { echo "$as_me:$LINENO: WARNING: errno.h: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: errno.h: in the future, the compiler will take precedence" >&2;}
     (
       cat <<\_ASBOX
-## ------------------------------------------ ##
-## Report this to the AC_PACKAGE_NAME lists.  ##
-## ------------------------------------------ ##
+## ------------------------------------ ##
+## Report this to bug-autoconf@gnu.org. ##
+## ------------------------------------ ##
 _ASBOX
     ) |
       sed "s/^/$as_me: WARNING:     /" >&2
@@ -4458,13 +4269,13 @@ _ACEOF
       # `set' does not quote correctly, so add quotes (double-quote
       # substitution turns \\\\ into \\, and sed turns \\ into \).
       sed -n \
-	"s/'/'\\\\''/g;
-	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+        "s/'/'\\\\''/g;
+    	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;;
     *)
       # `set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n \
-	"s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+        "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
       ;;
     esac;
 } |
@@ -4494,13 +4305,13 @@ test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
 # 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[	 ]*=/{
+  ac_vpsub='/^[ 	]*VPATH[ 	]*=/{
 s/:*\$(srcdir):*/:/;
 s/:*\${srcdir}:*/:/;
 s/:*@srcdir@:*/:/;
-s/^\([^=]*=[	 ]*\):*/\1/;
+s/^\([^=]*=[ 	]*\):*/\1/;
 s/:*$//;
-s/^[^=]*=[	 ]*$//;
+s/^[^=]*=[ 	]*$//;
 }'
 fi
 
@@ -4514,13 +4325,13 @@ fi
 cat >confdef2opt.sed <<\_ACEOF
 t clear
 : clear
-s,^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*([^)]*)\)[	 ]*\(.*\),-D\1=\2,g
+s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	(][^ 	(]*([^)]*)\)[ 	]*\(.*\),-D\1=\2,g
 t quote
-s,^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\),-D\1=\2,g
+s,^[ 	]*#[ 	]*define[ 	][ 	]*\([^ 	][^ 	]*\)[ 	]*\(.*\),-D\1=\2,g
 t quote
 d
 : quote
-s,[	 `~#$^&*(){}\\|;'"<>?],\\&,g
+s,[ 	`~#$^&*(){}\\|;'"<>?],\\&,g
 s,\[,\\&,g
 s,\],\\&,g
 s,\$,$$,g
@@ -4542,7 +4353,7 @@ ac_ltlibobjs=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_i=`echo "$ac_i" |
-	 sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
+         sed 's/\$U\././;s/\.o$//;s/\.obj$//'`
   # 2. Add them.
   ac_libobjs="$ac_libobjs $ac_i\$U.$ac_objext"
   ac_ltlibobjs="$ac_ltlibobjs $ac_i"'$U.lo'
@@ -4586,10 +4397,9 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
 elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
   set -o posix
 fi
-DUALCASE=1; export DUALCASE # for MKS sh
 
 # Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
   as_unset=unset
 else
   as_unset=false
@@ -4608,7 +4418,7 @@ for as_var in \
   LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
   LC_TELEPHONE LC_TIME
 do
-  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+  if (set +x; test -n "`(eval $as_var=C; export $as_var) 2>&1`"); then
     eval $as_var=C; export $as_var
   else
     $as_unset $as_var
@@ -4787,17 +4597,16 @@ rm -f conf$$ conf$$.exe conf$$.file
 if mkdir -p . 2>/dev/null; then
   as_mkdir_p=:
 else
-  test -d ./-p && rmdir ./-p
   as_mkdir_p=false
 fi
 
 as_executable_p="test -f"
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
 
 
 # IFS
@@ -4824,7 +4633,7 @@ _ASBOX
 cat >&5 <<_CSEOF
 
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.59.  Invocation command line was
+generated by GNU Autoconf 2.57.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -4868,7 +4677,7 @@ Usage: $0 [OPTIONS] [FILE]...
   -d, --debug      don't remove temporary files
       --recheck    update $as_me by reconfiguring in the same conditions
   --file=FILE[:TEMPLATE]
-		   instantiate the configuration file FILE
+                   instantiate the configuration file FILE
 
 Configuration files:
 $config_files
@@ -4879,10 +4688,11 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.59,
+configured by $0, generated by GNU Autoconf 2.57,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
-Copyright (C) 2003 Free Software Foundation, Inc.
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 srcdir=$srcdir
@@ -5185,9 +4995,9 @@ _ACEOF
       (echo ':t
   /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
       if test -z "$ac_sed_cmds"; then
-	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+  	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
       else
-	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+  	ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
       fi
       ac_sed_frag=`expr $ac_sed_frag + 1`
       ac_beg=$ac_end
@@ -5205,21 +5015,21 @@ for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
   # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case $ac_file in
   - | *:- | *:-:* ) # input from stdin
-	cat >$tmp/stdin
-	ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
-	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+        cat >$tmp/stdin
+        ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
   *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
-	ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+        ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
   * )   ac_file_in=$ac_file.in ;;
   esac
 
   # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
   ac_dir=`(dirname "$ac_file") 2>/dev/null ||
 $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$ac_file" : 'X\(//\)[^/]' \| \
-	 X"$ac_file" : 'X\(//\)$' \| \
-	 X"$ac_file" : 'X\(/\)' \| \
-	 .     : '\(.\)' 2>/dev/null ||
+         X"$ac_file" : 'X\(//\)[^/]' \| \
+         X"$ac_file" : 'X\(//\)$' \| \
+         X"$ac_file" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
 echo X"$ac_file" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
   	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
@@ -5235,10 +5045,10 @@ echo X"$ac_file" |
       as_dirs="$as_dir $as_dirs"
       as_dir=`(dirname "$as_dir") 2>/dev/null ||
 $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| \
-	 .     : '\(.\)' 2>/dev/null ||
+         X"$as_dir" : 'X\(//\)[^/]' \| \
+         X"$as_dir" : 'X\(//\)$' \| \
+         X"$as_dir" : 'X\(/\)' \| \
+         .     : '\(.\)' 2>/dev/null ||
 echo X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
   	  /^X\(\/\/\)[^/].*/{ s//\1/; q; }
@@ -5276,45 +5086,12 @@ case $srcdir in
     ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
     ac_top_srcdir=$ac_top_builddir$srcdir ;;
 esac
-
-# Do not use `cd foo && pwd` to compute absolute paths, because
-# the directories may not exist.
-case `pwd` in
-.) ac_abs_builddir="$ac_dir";;
-*)
-  case "$ac_dir" in
-  .) ac_abs_builddir=`pwd`;;
-  [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";;
-  *) ac_abs_builddir=`pwd`/"$ac_dir";;
-  esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_top_builddir=${ac_top_builddir}.;;
-*)
-  case ${ac_top_builddir}. in
-  .) ac_abs_top_builddir=$ac_abs_builddir;;
-  [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;;
-  *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;;
-  esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_srcdir=$ac_srcdir;;
-*)
-  case $ac_srcdir in
-  .) ac_abs_srcdir=$ac_abs_builddir;;
-  [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;;
-  *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;;
-  esac;;
-esac
-case $ac_abs_builddir in
-.) ac_abs_top_srcdir=$ac_top_srcdir;;
-*)
-  case $ac_top_srcdir in
-  .) ac_abs_top_srcdir=$ac_abs_builddir;;
-  [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;;
-  *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;;
-  esac;;
-esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_abs_builddir=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_abs_top_builddir=`cd "$ac_dir" && cd ${ac_top_builddir}. && pwd`
+ac_abs_srcdir=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_abs_top_srcdir=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
 
 
 
@@ -5332,7 +5109,7 @@ echo "$as_me: creating $ac_file" >&6;}
     configure_input="$ac_file.  "
   fi
   configure_input=$configure_input"Generated from `echo $ac_file_in |
-				     sed 's,.*/,,'` by configure."
+                                     sed 's,.*/,,'` by configure."
 
   # First look for the input files in the build tree, otherwise in the
   # src tree.
@@ -5341,24 +5118,24 @@ echo "$as_me: creating $ac_file" >&6;}
       case $f in
       -) echo $tmp/stdin ;;
       [\\/$]*)
-	 # Absolute (can't be DOS-style, as IFS=:)
-	 test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+         # Absolute (can't be DOS-style, as IFS=:)
+         test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
-	 echo "$f";;
+         echo $f;;
       *) # Relative
-	 if test -f "$f"; then
-	   # Build tree
-	   echo "$f"
-	 elif test -f "$srcdir/$f"; then
-	   # Source tree
-	   echo "$srcdir/$f"
-	 else
-	   # /dev/null tree
-	   { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+         if test -f "$f"; then
+           # Build tree
+           echo $f
+         elif test -f "$srcdir/$f"; then
+           # Source tree
+           echo $srcdir/$f
+         else
+           # /dev/null tree
+           { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
-	 fi;;
+         fi;;
       esac
     done` || { (exit 1); exit 1; }
 _ACEOF
diff --git a/win/tcl.m4 b/win/tcl.m4
index afba219..7b0f5a6 100644
--- a/win/tcl.m4
+++ b/win/tcl.m4
@@ -690,18 +690,17 @@ AC_DEFUN(SC_WITH_TCL, [
     AC_SUBST(TCL_BIN_DIR)
 ])
 
-# FIXME : SC_PROG_TCLSH should really look for the installed tclsh and
-# not the build version. If we want to use the build version in the
-# tk script, it is better to hardcode that!
-
 #------------------------------------------------------------------------
 # SC_PROG_TCLSH
-#	Locate a tclsh shell in the following directories:
-#		${exec_prefix}/bin
-#		${prefix}/bin
-#		${TCL_BIN_DIR}
-#		${TCL_BIN_DIR}/../bin
-#		${PATH}
+#	Locate a tclsh shell installed on the system path. This macro
+#	will only find a Tcl shell that already exists on the system.
+#	It will not find a Tcl shell in the Tcl build directory or
+#	a Tcl shell that has been installed from the Tcl build directory.
+#	If a Tcl shell can't be located on the PATH, then TCLSH_PROG will
+#	be set to "". Extensions should take care not to create Makefile
+#	rules that are run by default and depend on TCLSH_PROG. An
+#	extension can't assume that an executable Tcl shell exists at
+#	build time.
 #
 # Arguments
 #	none
@@ -715,7 +714,7 @@ AC_DEFUN(SC_PROG_TCLSH, [
     AC_MSG_CHECKING([for tclsh])
 
     AC_CACHE_VAL(ac_cv_path_tclsh, [
-	search_path=`echo ${exec_prefix}/bin:${prefix}/bin:${TCL_BIN_DIR}:${TCL_BIN_DIR}/../bin:${PATH} | sed -e 's/:/ /g'`
+	search_path=`echo ${PATH} | sed -e 's/:/ /g'`
 	for dir in $search_path ; do
 	    for j in `ls -r $dir/tclsh[[8-9]]*.exe 2> /dev/null` \
 		    `ls -r $dir/tclsh* 2> /dev/null` ; do
@@ -732,17 +731,38 @@ AC_DEFUN(SC_PROG_TCLSH, [
     if test -f "$ac_cv_path_tclsh" ; then
 	TCLSH_PROG="$ac_cv_path_tclsh"
 	AC_MSG_RESULT($TCLSH_PROG)
-    elif test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
-	# One-tree build.
-	ac_cv_path_tclsh="$TCL_BIN_DIR/tclsh"
-	TCLSH_PROG="$ac_cv_path_tclsh"
-	AC_MSG_RESULT($TCLSH_PROG)
     else
-	AC_MSG_ERROR(No tclsh found in PATH:  $search_path)
+	# It is not an error if an installed version of Tcl can't be located.
+	TCLSH_PROG=""
+	AC_MSG_RESULT([No tclsh found on PATH])
     fi
     AC_SUBST(TCLSH_PROG)
 ])
 
+#------------------------------------------------------------------------
+# SC_BUILD_TCLSH
+#	Determine the fully qualified path name of the tclsh executable
+#	in the Tcl build directory. This macro will correctly determine
+#	the name of the tclsh executable even if tclsh has not yet
+#	been built in the build directory. The build tclsh must be used
+#	when running tests from an extension build directory. It is not
+#	correct to use the TCLSH_PROG in cases like this.
+#
+# Arguments
+#	none
+#
+# Results
+#	Subst's the following values:
+#		BUILD_TCLSH
+#------------------------------------------------------------------------
+
+AC_DEFUN(SC_BUILD_TCLSH, [
+    AC_MSG_CHECKING([for tclsh in Tcl build directory])
+    BUILD_TCLSH=${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${TCL_DBGX}${EXEEXT}
+    AC_MSG_RESULT($BUILD_TCLSH)
+    AC_SUBST(BUILD_TCLSH)
+])
+
 #--------------------------------------------------------------------
 # SC_TCL_CFG_ENCODING	TIP #59
 #