* unix/configure: regenerated

	* unix/tcl.m4: updated to sync with Tcl's tcl.m4

2 files changed, 256 insertions, 216 deletions

diff --git a/unix/configure b/unix/configure
index f6cc870..95bd2be 100755
--- a/unix/configure
+++ b/unix/configure
@@ -1927,6 +1927,7 @@ fi
 		LD_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
 	    fi
 
+	    # Check to enable 64-bit flags for compiler/linker
 	    if test "$do64bit" = "yes" ; then
 		if test "$GCC" = "yes" ; then
 		    echo "configure: warning: "64bit mode not supported with GCC on $system"" 1>&2
@@ -1976,7 +1977,7 @@ fi
 	    # known GMT value.
 
 	    echo $ac_n "checking for gettimeofday in -lbsd""... $ac_c" 1>&6
-echo "configure:1980: checking for gettimeofday in -lbsd" >&5
+echo "configure:1981: checking for gettimeofday in -lbsd" >&5
 ac_lib_var=`echo bsd'_'gettimeofday | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1984,7 +1985,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1988 "configure"
+#line 1989 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1995,7 +1996,7 @@ int main() {
 gettimeofday()
 ; return 0; }
 EOF
-if { (eval echo configure:1999: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2000: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2023,6 +2024,17 @@ fi
 EOF
 
 	    fi
+
+	    # Check to enable 64-bit flags for compiler/linker
+	    if test "$do64bit" = "yes" ; then
+		if test "$GCC" = "yes" ; then
+		    echo "configure: warning: "64bit mode not supported with GCC on $system"" 1>&2
+		else 
+		    do64bit_ok=yes
+		    EXTRA_CFLAGS="-q64"
+		    LDFLAGS="-q64"
+		fi
+	    fi
 	    ;;
 	BSD/OS-2.1*|BSD/OS-3*)
 	    SHLIB_CFLAGS=""
@@ -2057,7 +2069,7 @@ EOF
 	HP-UX-*.11.*)
 	    SHLIB_SUFFIX=".sl"
 	    echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
-echo "configure:2061: checking for shl_load in -ldld" >&5
+echo "configure:2073: checking for shl_load in -ldld" >&5
 ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2065,7 +2077,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2069 "configure"
+#line 2081 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2076,7 +2088,7 @@ int main() {
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:2080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2092: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2106,6 +2118,8 @@ fi
 		LDFLAGS="-Wl,-E"
 		LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
 	    fi
+
+	    # Check to enable 64-bit flags for compiler/linker
 	    if test "$do64bit" = "yes" ; then
 		if test "$GCC" = "yes" ; then
 		    echo "configure: warning: "64bit mode not supported with GCC on $system"" 1>&2
@@ -2119,7 +2133,7 @@ fi
 	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
 	    SHLIB_SUFFIX=".sl"
 	    echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
-echo "configure:2123: checking for shl_load in -ldld" >&5
+echo "configure:2137: checking for shl_load in -ldld" >&5
 ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2127,7 +2141,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2131 "configure"
+#line 2145 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2138,7 +2152,7 @@ int main() {
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:2142: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2156: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2245,17 +2259,17 @@ fi
 	    else
 		ac_safe=`echo "dld.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dld.h""... $ac_c" 1>&6
-echo "configure:2249: checking for dld.h" >&5
+echo "configure:2263: checking for dld.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2254 "configure"
+#line 2268 "configure"
 #include "confdefs.h"
 #include <dld.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2259: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2273: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2312,17 +2326,17 @@ fi
 	    else
 		ac_safe=`echo "dld.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dld.h""... $ac_c" 1>&6
-echo "configure:2316: checking for dld.h" >&5
+echo "configure:2330: checking for dld.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2321 "configure"
+#line 2335 "configure"
 #include "confdefs.h"
 #include <dld.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2326: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2340: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2377,17 +2391,17 @@ fi
 	    # Not available on all versions:  check for include file.
 	    ac_safe=`echo "dlfcn.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dlfcn.h""... $ac_c" 1>&6
-echo "configure:2381: checking for dlfcn.h" >&5
+echo "configure:2395: checking for dlfcn.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2386 "configure"
+#line 2400 "configure"
 #include "confdefs.h"
 #include <dlfcn.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2391: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2405: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2414,9 +2428,9 @@ if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
 		LDFLAGS=""
 		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 		echo $ac_n "checking for ELF""... $ac_c" 1>&6
-echo "configure:2418: checking for ELF" >&5
+echo "configure:2432: checking for ELF" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 2420 "configure"
+#line 2434 "configure"
 #include "confdefs.h"
 
 #ifdef __ELF__
@@ -2469,12 +2483,18 @@ fi
 	    DL_LIBS=""
 	    LDFLAGS="-export-dynamic"
 	    LD_SEARCH_FLAGS=""
-
-	    # FreeBSD doesn't handle version numbers with dots.
-
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
-	    TCL_LIB_VERSIONS_OK=nodots
+	    if test "${TCL_THREADS}" = "1" ; then
+		EXTRA_CFLAGS="-pthread"
+	    	LDFLAGS="$LDFLAGS -pthread"
+	    fi
+	    case $system in
+	    FreeBSD-3.*)
+	    	# FreeBSD-3 doesn't handle version numbers with dots.
+	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
+	    	TCL_LIB_VERSIONS_OK=nodots
+		;;
+	    esac
 	    ;;
 	Rhapsody-*|Darwin-*)
 	    SHLIB_CFLAGS="-fno-common"
@@ -2635,6 +2655,10 @@ EOF
 #define _REENTRANT 1
 EOF
 
+	    cat >> confdefs.h <<\EOF
+#define _POSIX_PTHREAD_SEMANTICS 1
+EOF
+
 
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
@@ -2662,11 +2686,16 @@ EOF
 #define _REENTRANT 1
 EOF
 
+	    cat >> confdefs.h <<\EOF
+#define _POSIX_PTHREAD_SEMANTICS 1
+EOF
+
 
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 	    LDFLAGS=""
     
+	    # Check to enable 64-bit flags for compiler/linker
 	    if test "$do64bit" = "yes" ; then
 		arch=`isainfo`
 		if test "$arch" = "sparcv9 sparc" ; then
@@ -2724,17 +2753,17 @@ EOF
 	    # that don't grok the -Bexport option.  Test that it does.
 	    hold_ldflags=$LDFLAGS
 	    echo $ac_n "checking for ld accepts -Bexport flag""... $ac_c" 1>&6
-echo "configure:2728: checking for ld accepts -Bexport flag" >&5
+echo "configure:2757: checking for ld accepts -Bexport flag" >&5
 	    LDFLAGS="${LDFLAGS} -Wl,-Bexport"
 	    cat > conftest.$ac_ext <<EOF
-#line 2731 "configure"
+#line 2760 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:2738: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2767: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   found=yes
 else
@@ -2780,9 +2809,9 @@ rm -f conftest*
 
     if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
 	echo $ac_n "checking sys/exec.h""... $ac_c" 1>&6
-echo "configure:2784: checking sys/exec.h" >&5
+echo "configure:2813: checking sys/exec.h" >&5
 	cat > conftest.$ac_ext <<EOF
-#line 2786 "configure"
+#line 2815 "configure"
 #include "confdefs.h"
 #include <sys/exec.h>
 int main() {
@@ -2800,7 +2829,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:2804: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2833: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -2818,9 +2847,9 @@ EOF
 
 	else
 	    echo $ac_n "checking a.out.h""... $ac_c" 1>&6
-echo "configure:2822: checking a.out.h" >&5
+echo "configure:2851: checking a.out.h" >&5
 	    cat > conftest.$ac_ext <<EOF
-#line 2824 "configure"
+#line 2853 "configure"
 #include "confdefs.h"
 #include <a.out.h>
 int main() {
@@ -2838,7 +2867,7 @@ int main() {
 	    
 ; return 0; }
 EOF
-if { (eval echo configure:2842: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2871: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -2856,9 +2885,9 @@ EOF
 
 	    else
 		echo $ac_n "checking sys/exec_aout.h""... $ac_c" 1>&6
-echo "configure:2860: checking sys/exec_aout.h" >&5
+echo "configure:2889: checking sys/exec_aout.h" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 2862 "configure"
+#line 2891 "configure"
 #include "confdefs.h"
 #include <sys/exec_aout.h>
 int main() {
@@ -2876,7 +2905,7 @@ int main() {
 		
 ; return 0; }
 EOF
-if { (eval echo configure:2880: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2909: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -2973,7 +3002,7 @@ fi
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:2977: checking for build with symbols" >&5
+echo "configure:3006: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -3017,12 +3046,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for sin""... $ac_c" 1>&6
-echo "configure:3021: checking for sin" >&5
+echo "configure:3050: checking for sin" >&5
 if eval "test \"`echo '$''{'ac_cv_func_sin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3026 "configure"
+#line 3055 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sin(); below.  */
@@ -3045,7 +3074,7 @@ sin();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3049: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3078: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_sin=yes"
 else
@@ -3066,7 +3095,7 @@ MATH_LIBS="-lm"
 fi
 
 echo $ac_n "checking for main in -lieee""... $ac_c" 1>&6
-echo "configure:3070: checking for main in -lieee" >&5
+echo "configure:3099: checking for main in -lieee" >&5
 ac_lib_var=`echo ieee'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3074,14 +3103,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3078 "configure"
+#line 3107 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:3085: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3114: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3112,7 +3141,7 @@ fi
 libbsd=no
 if test "`uname -s`" = "AIX" ; then
     echo $ac_n "checking for gettimeofday in -lbsd""... $ac_c" 1>&6
-echo "configure:3116: checking for gettimeofday in -lbsd" >&5
+echo "configure:3145: checking for gettimeofday in -lbsd" >&5
 ac_lib_var=`echo bsd'_'gettimeofday | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3120,7 +3149,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3124 "configure"
+#line 3153 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3131,7 +3160,7 @@ int main() {
 gettimeofday()
 ; return 0; }
 EOF
-if { (eval echo configure:3135: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3164: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3162,9 +3191,9 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking stdlib.h""... $ac_c" 1>&6
-echo "configure:3166: checking stdlib.h" >&5
+echo "configure:3195: checking stdlib.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3168 "configure"
+#line 3197 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -3179,7 +3208,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 3183 "configure"
+#line 3212 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -3193,7 +3222,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 3197 "configure"
+#line 3226 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -3225,16 +3254,16 @@ echo "$ac_t""$tk_ok" 1>&6
 #--------------------------------------------------------------------
 
 echo $ac_n "checking fd_set and sys/select""... $ac_c" 1>&6
-echo "configure:3229: checking fd_set and sys/select" >&5
+echo "configure:3258: checking fd_set and sys/select" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3231 "configure"
+#line 3260 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
 fd_set readMask, writeMask;
 ; return 0; }
 EOF
-if { (eval echo configure:3238: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3267: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tk_ok=yes
 else
@@ -3246,7 +3275,7 @@ fi
 rm -f conftest*
 if test $tk_ok = no; then
     cat > conftest.$ac_ext <<EOF
-#line 3250 "configure"
+#line 3279 "configure"
 #include "confdefs.h"
 #include <sys/select.h>
 EOF
@@ -3278,12 +3307,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:3282: checking for ANSI C header files" >&5
+echo "configure:3311: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3287 "configure"
+#line 3316 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -3291,7 +3320,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3295: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3324: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3308,7 +3337,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 3312 "configure"
+#line 3341 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -3326,7 +3355,7 @@ 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 <<EOF
-#line 3330 "configure"
+#line 3359 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -3347,7 +3376,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 3351 "configure"
+#line 3380 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -3358,7 +3387,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:3362: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3391: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -3382,12 +3411,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:3386: checking for mode_t" >&5
+echo "configure:3415: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3391 "configure"
+#line 3420 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -3415,12 +3444,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:3419: checking for pid_t" >&5
+echo "configure:3448: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3424 "configure"
+#line 3453 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -3448,12 +3477,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:3452: checking for size_t" >&5
+echo "configure:3481: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3457 "configure"
+#line 3486 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -3481,12 +3510,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:3485: checking for uid_t in sys/types.h" >&5
+echo "configure:3514: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3490 "configure"
+#line 3519 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -3523,17 +3552,17 @@ for ac_hdr in sys/time.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:3527: checking for $ac_hdr" >&5
+echo "configure:3556: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3532 "configure"
+#line 3561 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3537: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3566: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3560,12 +3589,12 @@ fi
 done
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:3564: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:3593: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3569 "configure"
+#line 3598 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -3574,7 +3603,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:3578: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3607: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -3600,16 +3629,16 @@ fi
 #-------------------------------------------
 
 echo $ac_n "checking pw_gecos in struct pwd""... $ac_c" 1>&6
-echo "configure:3604: checking pw_gecos in struct pwd" >&5
+echo "configure:3633: checking pw_gecos in struct pwd" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3606 "configure"
+#line 3635 "configure"
 #include "confdefs.h"
 #include <pwd.h>
 int main() {
 struct passwd pwd; pwd.pw_gecos;
 ; return 0; }
 EOF
-if { (eval echo configure:3613: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3642: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tk_ok=yes
 else
@@ -3642,7 +3671,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:3646: checking for X" >&5
+echo "configure:3675: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -3704,12 +3733,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 3708 "configure"
+#line 3737 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3713: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3742: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3778,14 +3807,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3782 "configure"
+#line 3811 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:3789: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3818: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -3875,12 +3904,12 @@ fi
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
 	    cat > conftest.$ac_ext <<EOF
-#line 3879 "configure"
+#line 3908 "configure"
 #include "confdefs.h"
 #include <X11/XIntrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3884: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3913: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -3900,15 +3929,15 @@ rm -f conftest*
     fi
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	echo $ac_n "checking for X11 header files""... $ac_c" 1>&6
-echo "configure:3904: checking for X11 header files" >&5
+echo "configure:3933: checking for X11 header files" >&5
 	XINCLUDES="# no special path needed"
 	cat > conftest.$ac_ext <<EOF
-#line 3907 "configure"
+#line 3936 "configure"
 #include "confdefs.h"
 #include <X11/Intrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3912: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3941: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -3944,7 +3973,7 @@ rm -f conftest*
 
     if test "$no_x" = yes; then
 	echo $ac_n "checking for X11 libraries""... $ac_c" 1>&6
-echo "configure:3948: checking for X11 libraries" >&5
+echo "configure:3977: checking for X11 libraries" >&5
 	XLIBSW=nope
 	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
 	for i in $dirs ; do
@@ -3964,7 +3993,7 @@ echo "configure:3948: checking for X11 libraries" >&5
     fi
     if test "$XLIBSW" = nope ; then
 	echo $ac_n "checking for XCreateWindow in -lXwindow""... $ac_c" 1>&6
-echo "configure:3968: checking for XCreateWindow in -lXwindow" >&5
+echo "configure:3997: checking for XCreateWindow in -lXwindow" >&5
 ac_lib_var=`echo Xwindow'_'XCreateWindow | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3972,7 +4001,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXwindow  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3976 "configure"
+#line 4005 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3983,7 +4012,7 @@ int main() {
 XCreateWindow()
 ; return 0; }
 EOF
-if { (eval echo configure:3987: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4016: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4068,7 +4097,7 @@ esac
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for main in -lXbsd""... $ac_c" 1>&6
-echo "configure:4072: checking for main in -lXbsd" >&5
+echo "configure:4101: checking for main in -lXbsd" >&5
 ac_lib_var=`echo Xbsd'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4076,14 +4105,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4080 "configure"
+#line 4109 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4087: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4116: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4106,12 +4135,12 @@ fi
 
 tk_checkBoth=0
 echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:4110: checking for connect" >&5
+echo "configure:4139: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4115 "configure"
+#line 4144 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -4134,7 +4163,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4138: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4167: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -4156,7 +4185,7 @@ fi
 
 if test "$tk_checkSocket" = 1; then
     echo $ac_n "checking for main in -lsocket""... $ac_c" 1>&6
-echo "configure:4160: checking for main in -lsocket" >&5
+echo "configure:4189: checking for main in -lsocket" >&5
 ac_lib_var=`echo socket'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4164,14 +4193,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4168 "configure"
+#line 4197 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4175: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4204: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4197,12 +4226,12 @@ if test "$tk_checkBoth" = 1; then
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lsocket -lnsl"
     echo $ac_n "checking for accept""... $ac_c" 1>&6
-echo "configure:4201: checking for accept" >&5
+echo "configure:4230: checking for accept" >&5
 if eval "test \"`echo '$''{'ac_cv_func_accept'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4206 "configure"
+#line 4235 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char accept(); below.  */
@@ -4225,7 +4254,7 @@ accept();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4229: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4258: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_accept=yes"
 else
@@ -4247,12 +4276,12 @@ fi
 
 fi
 echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:4251: checking for gethostbyname" >&5
+echo "configure:4280: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4256 "configure"
+#line 4285 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -4275,7 +4304,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4279: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4308: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -4293,7 +4322,7 @@ if eval "test \"`echo '$ac_cv_func_'gethostbyname`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for main in -lnsl""... $ac_c" 1>&6
-echo "configure:4297: checking for main in -lnsl" >&5
+echo "configure:4326: checking for main in -lnsl" >&5
 ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4301,14 +4330,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4305 "configure"
+#line 4334 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4312: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4341: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4348,13 +4377,13 @@ LIBS="$LIBS$THREADS_LIBS"
 
 if test -d /usr/include/mit ; then
     echo $ac_n "checking MIT X libraries""... $ac_c" 1>&6
-echo "configure:4352: checking MIT X libraries" >&5
+echo "configure:4381: checking MIT X libraries" >&5
     tk_oldCFlags=$CFLAGS
     CFLAGS="$CFLAGS -I/usr/include/mit"
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lX11-mit"
     cat > conftest.$ac_ext <<EOF
-#line 4358 "configure"
+#line 4387 "configure"
 #include "confdefs.h"
 
 	#include <X11/Xlib.h>
@@ -4365,7 +4394,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:4369: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4398: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   
 	echo "$ac_t""yes" 1>&6
@@ -4392,12 +4421,12 @@ fi
 
 MATH_LIBS=""
 echo $ac_n "checking for sin""... $ac_c" 1>&6
-echo "configure:4396: checking for sin" >&5
+echo "configure:4425: checking for sin" >&5
 if eval "test \"`echo '$''{'ac_cv_func_sin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4401 "configure"
+#line 4430 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sin(); below.  */
@@ -4420,7 +4449,7 @@ sin();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4424: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4453: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_sin=yes"
 else
@@ -4441,7 +4470,7 @@ MATH_LIBS="-lm"
 fi
 
 echo $ac_n "checking for main in -lieee""... $ac_c" 1>&6
-echo "configure:4445: checking for main in -lieee" >&5
+echo "configure:4474: checking for main in -lieee" >&5
 ac_lib_var=`echo ieee'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4449,14 +4478,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4453 "configure"
+#line 4482 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:4460: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4489: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4483,14 +4512,14 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether char is unsigned""... $ac_c" 1>&6
-echo "configure:4487: checking whether char is unsigned" >&5
+echo "configure:4516: checking whether char is unsigned" >&5
 if eval "test \"`echo '$''{'ac_cv_c_char_unsigned'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test "$GCC" = yes; then
   # GCC predefines this symbol on systems where it applies.
 cat > conftest.$ac_ext <<EOF
-#line 4494 "configure"
+#line 4523 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -4512,7 +4541,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 4516 "configure"
+#line 4545 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -4522,7 +4551,7 @@ main() {
   volatile char c = 255; exit(c < 0);
 }
 EOF
-if { (eval echo configure:4526: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4555: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_char_unsigned=yes
 else
@@ -4555,12 +4584,12 @@ fi
 
 
     echo $ac_n "checking for strtod""... $ac_c" 1>&6
-echo "configure:4559: checking for strtod" >&5
+echo "configure:4588: checking for strtod" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4564 "configure"
+#line 4593 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtod(); below.  */
@@ -4583,7 +4612,7 @@ strtod();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4587: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4616: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtod=yes"
 else
@@ -4605,12 +4634,12 @@ fi
 
     if test "$tcl_strtod" = 1; then
 	echo $ac_n "checking for Solaris2.4/Tru64 strtod bugs""... $ac_c" 1>&6
-echo "configure:4609: checking for Solaris2.4/Tru64 strtod bugs" >&5
+echo "configure:4638: checking for Solaris2.4/Tru64 strtod bugs" >&5
 	if test "$cross_compiling" = yes; then
   tcl_ok=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 4614 "configure"
+#line 4643 "configure"
 #include "confdefs.h"
 
 	    extern double strtod();
@@ -4630,7 +4659,7 @@ else
 		exit(0);
 	    }
 EOF
-if { (eval echo configure:4634: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4663: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_ok=1
 else
@@ -4662,7 +4691,7 @@ EOF
 
 
     echo $ac_n "checking how to build libraries""... $ac_c" 1>&6
-echo "configure:4666: checking how to build libraries" >&5
+echo "configure:4695: checking how to build libraries" >&5
     # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 6d7b0f4..499fc56 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -575,7 +575,6 @@ AC_DEFUN(SC_ENABLE_LANGINFO, [
 #			Flags used when running the compiler in debug mode
 #	CFLAGS_OPTIMIZE -
 #			Flags used when running the compiler in optimize mode
-#
 #	EXTRA_CFLAGS
 #
 #	Subst's the following vars:
@@ -695,6 +694,7 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 		LD_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
 	    fi
 
+	    # Check to enable 64-bit flags for compiler/linker
 	    if test "$do64bit" = "yes" ; then
 		if test "$GCC" = "yes" ; then
 		    AC_MSG_WARN("64bit mode not supported with GCC on $system")
@@ -748,6 +748,17 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 	    	MATH_LIBS="$MATH_LIBS -lbsd"
 	    	AC_DEFINE(USE_DELTA_FOR_TZ)
 	    fi
+
+	    # Check to enable 64-bit flags for compiler/linker
+	    if test "$do64bit" = "yes" ; then
+		if test "$GCC" = "yes" ; then
+		    AC_MSG_WARN("64bit mode not supported with GCC on $system")
+		else 
+		    do64bit_ok=yes
+		    EXTRA_CFLAGS="-q64"
+		    LDFLAGS="-q64"
+		fi
+	    fi
 	    ;;
 	BSD/OS-2.1*|BSD/OS-3*)
 	    SHLIB_CFLAGS=""
@@ -791,6 +802,8 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 		LDFLAGS="-Wl,-E"
 		LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
 	    fi
+
+	    # Check to enable 64-bit flags for compiler/linker
 	    if test "$do64bit" = "yes" ; then
 		if test "$GCC" = "yes" ; then
 		    AC_MSG_WARN("64bit mode not supported with GCC on $system")
@@ -1004,12 +1017,18 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 	    DL_LIBS=""
 	    LDFLAGS="-export-dynamic"
 	    LD_SEARCH_FLAGS=""
-
-	    # FreeBSD doesn't handle version numbers with dots.
-
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
-	    TCL_LIB_VERSIONS_OK=nodots
+	    if test "${TCL_THREADS}" = "1" ; then
+		EXTRA_CFLAGS="-pthread"
+	    	LDFLAGS="$LDFLAGS -pthread"
+	    fi
+	    case $system in
+	    FreeBSD-3.*)
+	    	# FreeBSD-3 doesn't handle version numbers with dots.
+	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
+	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
+	    	TCL_LIB_VERSIONS_OK=nodots
+		;;
+	    esac
 	    ;;
 	Rhapsody-*|Darwin-*)
 	    SHLIB_CFLAGS="-fno-common"
@@ -1164,6 +1183,7 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 	    # won't define thread-safe library routines.
 
 	    AC_DEFINE(_REENTRANT)
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
 
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
@@ -1188,11 +1208,13 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 	    # won't define thread-safe library routines.
 
 	    AC_DEFINE(_REENTRANT)
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
 
 	    SHLIB_CFLAGS="-KPIC"
 	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 	    LDFLAGS=""
     
+	    # Check to enable 64-bit flags for compiler/linker
 	    if test "$do64bit" = "yes" ; then
 		arch=`isainfo`
 		if test "$arch" = "sparcv9 sparc" ; then
@@ -1415,7 +1437,9 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 #
 #	Determine which interface to use to talk to the serial port.
 #	Note that #include lines must begin in leftmost column for
-#	some compilers to recognize them as preprocessor directives.
+#	some compilers to recognize them as preprocessor directives,
+#	and some build environments have stdin not pointing at a
+#	pseudo-terminal (usually /dev/null instead.)
 #
 # Arguments:
 #	none
@@ -1431,12 +1455,11 @@ dnl AC_CHECK_TOOL(AR, ar, :)
 
 AC_DEFUN(SC_SERIAL_PORT, [
     AC_MSG_CHECKING([termios vs. termio vs. sgtty])
-
+    AC_CACHE_VAL(tcl_cv_api_serial, [
     AC_TRY_RUN([
 #include <termios.h>
 
-main()
-{
+int main() {
     struct termios t;
     if (tcgetattr(0, &t) == 0) {
 	cfsetospeed(&t, 0);
@@ -1444,32 +1467,25 @@ main()
 	return 0;
     }
     return 1;
-}], tk_ok=termios, tk_ok=no, tk_ok=no)
-
-    if test $tk_ok = termios; then
-	AC_DEFINE(USE_TERMIOS)
-    else
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    if test $tcl_cv_api_serial = no ; then
 	AC_TRY_RUN([
 #include <termio.h>
 
-main()
-{
+int main() {
     struct termio t;
     if (ioctl(0, TCGETA, &t) == 0) {
 	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
 	return 0;
     }
     return 1;
-    }], tk_ok=termio, tk_ok=no, tk_ok=no)
-
-    if test $tk_ok = termio; then
-	AC_DEFINE(USE_TERMIO)
-    else
+}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no ; then
 	AC_TRY_RUN([
 #include <sgtty.h>
 
-main()
-{
+int main() {
     struct sgttyb t;
     if (ioctl(0, TIOCGETP, &t) == 0) {
 	t.sg_ospeed = 0;
@@ -1477,17 +1493,14 @@ main()
 	return 0;
     }
     return 1;
-}], tk_ok=sgtty, tk_ok=none, tk_ok=none)
-
-    if test $tk_ok = sgtty; then
-	AC_DEFINE(USE_SGTTY)
-    else
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
+    fi
+    if test $tcl_cv_api_serial = no ; then
 	AC_TRY_RUN([
 #include <termios.h>
 #include <errno.h>
 
-main()
-{
+int main() {
     struct termios t;
     if (tcgetattr(0, &t) == 0
 	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
@@ -1496,17 +1509,14 @@ main()
 	return 0;
     }
     return 1;
-}], tk_ok=termios, tk_ok=no, tk_ok=no)
-
-    if test $tk_ok = termios; then
-	AC_DEFINE(USE_TERMIOS)
-    else
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no; then
 	AC_TRY_RUN([
 #include <termio.h>
 #include <errno.h>
 
-main()
-{
+int main() {
     struct termio t;
     if (ioctl(0, TCGETA, &t) == 0
 	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
@@ -1514,17 +1524,14 @@ main()
 	return 0;
     }
     return 1;
-    }], tk_ok=termio, tk_ok=no, tk_ok=no)
-
-    if test $tk_ok = termio; then
-	AC_DEFINE(USE_TERMIO)
-    else
+    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no; then
 	AC_TRY_RUN([
 #include <sgtty.h>
 #include <errno.h>
 
-main()
-{
+int main() {
     struct sgttyb t;
     if (ioctl(0, TIOCGETP, &t) == 0
 	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
@@ -1533,17 +1540,14 @@ main()
 	return 0;
     }
     return 1;
-}], tk_ok=sgtty, tk_ok=none, tk_ok=none)
-
-    if test $tk_ok = sgtty; then
-	AC_DEFINE(USE_SGTTY)
-    fi
-    fi
-    fi
-    fi
-    fi
-    fi
-    AC_MSG_RESULT($tk_ok)
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
+    fi])
+    case $tcl_cv_api_serial in
+	termios) AC_DEFINE(USE_TERMIOS);;
+	termio)  AC_DEFINE(USE_TERMIO);;
+	sgtty)   AC_DEFINE(USE_SGTTY);;
+    esac
+    AC_MSG_RESULT($tcl_cv_api_serial)
 ])
 
 #--------------------------------------------------------------------
@@ -1817,46 +1821,53 @@ AC_DEFUN(SC_TIME_HANDLER, [
     AC_CHECK_FUNCS(gmtime_r localtime_r)
 
     AC_MSG_CHECKING([tm_tzadj in struct tm])
-    AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
-	    [AC_DEFINE(HAVE_TM_TZADJ)
-	    AC_MSG_RESULT(yes)],
-	    AC_MSG_RESULT(no))
+    AC_CACHE_VAL(tcl_cv_member_tm_tzadj,
+	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
+	    tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no))
+    AC_MSG_RESULT($tcl_cv_member_tm_tzadj)
+    if test $tcl_cv_member_tm_tzadj = yes ; then
+	AC_DEFINE(HAVE_TM_TZADJ)
+    fi
 
     AC_MSG_CHECKING([tm_gmtoff in struct tm])
-    AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
-	    [AC_DEFINE(HAVE_TM_GMTOFF)
-	    AC_MSG_RESULT(yes)],
-	    AC_MSG_RESULT(no))
+    AC_CACHE_VAL(tcl_cv_member_tm_gmtoff,
+	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
+	    tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no))
+    AC_MSG_RESULT($tcl_cv_member_tm_gmtoff)
+    if test $tcl_cv_member_tm_gmtoff = yes ; then
+	AC_DEFINE(HAVE_TM_GMTOFF)
+    fi
 
     #
     # Its important to include time.h in this check, as some systems
     # (like convex) have timezone functions, etc.
     #
-    have_timezone=no
     AC_MSG_CHECKING([long timezone variable])
-    AC_TRY_COMPILE([#include <time.h>],
+    AC_CACHE_VAL(tcl_cv_var_timezone,
+	AC_TRY_COMPILE([#include <time.h>],
 	    [extern long timezone;
 	    timezone += 1;
 	    exit (0);],
-	    [have_timezone=yes
+	    tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no))
+    AC_MSG_RESULT($tcl_cv_timezone_long)
+    if test $tcl_cv_timezone_long = yes ; then
+	AC_DEFINE(HAVE_TIMEZONE_VAR)
+    else
+	#
+	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
+	#
+	AC_MSG_CHECKING([time_t timezone variable])
+	AC_CACHE_VAL(tcl_cv_timezone_time,
+	    AC_TRY_COMPILE([#include <time.h>],
+		[extern time_t timezone;
+		timezone += 1;
+		exit (0);],
+		tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no))
+	AC_MSG_RESULT($tcl_cv_timezone_time)
+	if test $tcl_cv_timezone_time = yes ; then
 	    AC_DEFINE(HAVE_TIMEZONE_VAR)
-	    AC_MSG_RESULT(yes)],
-	    AC_MSG_RESULT(no))
-
-    #
-    # On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
-    #
-    if test "$have_timezone" = no; then
-    AC_MSG_CHECKING([time_t timezone variable])
-    AC_TRY_COMPILE([#include <time.h>],
-	    [extern time_t timezone;
-	    timezone += 1;
-	    exit (0);],
-	    [AC_DEFINE(HAVE_TIMEZONE_VAR)
-	    AC_MSG_RESULT(yes)],
-	    AC_MSG_RESULT(no))
+	fi
     fi
-
 ])
 
 #--------------------------------------------------------------------