* tcl.m4 (Linux): --enable-64bit support. [Patch 1597389], [Bug 1230558]

	* configure: autoconf-2.13

3 files changed, 203 insertions, 151 deletions

diff --git a/ChangeLog b/ChangeLog
index 455c52c..0e8f7e8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-11-26  Daniel Steffen  <das@users.sourceforge.net>
+
+	* tcl.m4 (Linux): --enable-64bit support. [Patch 1597389], [Bug 1230558]
+	* configure: autoconf-2.13
+
 2006-11-24  Jeff Hobbs  <jeffh@ActiveState.com>
 
 	* macosx/tkMacOSXInit.c (TkpInit): only set tcl_interactive 1 if
diff --git a/unix/configure b/unix/configure
index 8e4590c..57bf48c 100755
--- a/unix/configure
+++ b/unix/configure
@@ -2557,7 +2557,7 @@ fi
 	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
 
 	    if test "$have_dl" = yes; then
-		SHLIB_LD="${CC} -shared"
+		SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
 		DL_OBJS="tclLoadDl.o"
 		DL_LIBS="-ldl"
 		LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
@@ -2606,6 +2606,42 @@ fi
 	    if test "`uname -m`" = "alpha" ; then
 		CFLAGS="$CFLAGS -mieee"
 	    fi
+	    if test $do64bit = yes; then
+		echo $ac_n "checking if compiler accepts -m64 flag""... $ac_c" 1>&6
+echo "configure:2612: checking if compiler accepts -m64 flag" >&5
+if eval "test \"`echo '$''{'tcl_cv_cc_m64'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+		    hold_cflags=$CFLAGS
+		    CFLAGS="$CFLAGS -m64"
+		    cat > conftest.$ac_ext <<EOF
+#line 2620 "configure"
+#include "confdefs.h"
+
+int main() {
+
+; return 0; }
+EOF
+if { (eval echo configure:2627: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  tcl_cv_cc_m64=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  tcl_cv_cc_m64=no
+fi
+rm -f conftest*
+		    CFLAGS=$hold_cflags
+fi
+
+echo "$ac_t""$tcl_cv_cc_m64" 1>&6
+		if test $tcl_cv_cc_m64 = yes; then
+		    CFLAGS="$CFLAGS -m64"
+		    do64bit_ok=yes
+		fi
+	    fi
 
 	    # The combo of gcc + glibc has a bug related
 	    # to inlining of functions like strtod(). The
@@ -2640,17 +2676,17 @@ EOF
 	    else
 		ac_safe=`echo "dld.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dld.h""... $ac_c" 1>&6
-echo "configure:2644: checking for dld.h" >&5
+echo "configure:2680: checking for dld.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2649 "configure"
+#line 2685 "configure"
 #include "confdefs.h"
 #include <dld.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2654: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2690: \"$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*
@@ -2718,17 +2754,17 @@ 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""... $ac_c" 1>&6
-echo "configure:2722: checking for dlfcn.h" >&5
+echo "configure:2758: checking for dlfcn.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2727 "configure"
+#line 2763 "configure"
 #include "confdefs.h"
 #include <dlfcn.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2732: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2768: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2755,13 +2791,13 @@ if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
 		echo $ac_n "checking for ELF""... $ac_c" 1>&6
-echo "configure:2759: checking for ELF" >&5
+echo "configure:2795: checking for ELF" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_elf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		    cat > conftest.$ac_ext <<EOF
-#line 2765 "configure"
+#line 2801 "configure"
 #include "confdefs.h"
 
 #ifdef __ELF__
@@ -2840,13 +2876,13 @@ fi
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
 		echo $ac_n "checking for ELF""... $ac_c" 1>&6
-echo "configure:2844: checking for ELF" >&5
+echo "configure:2880: checking for ELF" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_elf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		    cat > conftest.$ac_ext <<EOF
-#line 2850 "configure"
+#line 2886 "configure"
 #include "confdefs.h"
 
 #ifdef __ELF__
@@ -2927,7 +2963,7 @@ echo "$ac_t""$tcl_cv_ld_elf" 1>&6
 	    fi
 	    SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
 	    echo $ac_n "checking if ld accepts -single_module flag""... $ac_c" 1>&6
-echo "configure:2931: checking if ld accepts -single_module flag" >&5
+echo "configure:2967: checking if ld accepts -single_module flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_single_module'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2935,14 +2971,14 @@ else
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
 		cat > conftest.$ac_ext <<EOF
-#line 2939 "configure"
+#line 2975 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:2946: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2982: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_ld_single_module=yes
 else
@@ -2969,7 +3005,7 @@ echo "$ac_t""$tcl_cv_ld_single_module" 1>&6
 		LDFLAGS="$LDFLAGS -prebind"
 	    LDFLAGS="$LDFLAGS -headerpad_max_install_names"
 	    echo $ac_n "checking if ld accepts -search_paths_first flag""... $ac_c" 1>&6
-echo "configure:2973: checking if ld accepts -search_paths_first flag" >&5
+echo "configure:3009: checking if ld accepts -search_paths_first flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_search_paths_first'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2977,14 +3013,14 @@ else
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
 		cat > conftest.$ac_ext <<EOF
-#line 2981 "configure"
+#line 3017 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:2988: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3024: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_ld_search_paths_first=yes
 else
@@ -3007,7 +3043,7 @@ echo "$ac_t""$tcl_cv_ld_search_paths_first" 1>&6
 	    PLAT_OBJS=\$\(MAC\_OSX_OBJS\)
 	    PLAT_SRCS=\$\(MAC\_OSX_SRCS\)
 	    echo $ac_n "checking whether to use CoreFoundation""... $ac_c" 1>&6
-echo "configure:3011: checking whether to use CoreFoundation" >&5
+echo "configure:3047: checking whether to use CoreFoundation" >&5
 	    # Check whether --enable-corefoundation or --disable-corefoundation was given.
 if test "${enable_corefoundation+set}" = set; then
   enableval="$enable_corefoundation"
@@ -3019,7 +3055,7 @@ fi
 	    echo "$ac_t""$tcl_corefoundation" 1>&6
 	    if test $tcl_corefoundation = yes; then
 		echo $ac_n "checking for CoreFoundation.framework""... $ac_c" 1>&6
-echo "configure:3023: checking for CoreFoundation.framework" >&5
+echo "configure:3059: checking for CoreFoundation.framework" >&5
 if eval "test \"`echo '$''{'tcl_cv_lib_corefoundation'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3033,14 +3069,14 @@ else
 		    fi
 		    LIBS="$LIBS -framework CoreFoundation"
 		    cat > conftest.$ac_ext <<EOF
-#line 3037 "configure"
+#line 3073 "configure"
 #include "confdefs.h"
 #include <CoreFoundation/CoreFoundation.h>
 int main() {
 CFBundleRef b = CFBundleGetMainBundle();
 ; return 0; }
 EOF
-if { (eval echo configure:3044: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_lib_corefoundation=yes
 else
@@ -3065,7 +3101,7 @@ EOF
 		fi
 		if test "$fat_32_64" = yes -a $tcl_corefoundation = yes; then
 		    echo $ac_n "checking for 64-bit CoreFoundation""... $ac_c" 1>&6
-echo "configure:3069: checking for 64-bit CoreFoundation" >&5
+echo "configure:3105: checking for 64-bit CoreFoundation" >&5
 if eval "test \"`echo '$''{'tcl_cv_lib_corefoundation_64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3073,14 +3109,14 @@ else
 			hold_cflags=$CFLAGS
 			CFLAGS="`echo "$CFLAGS " | sed -e 's/-arch ppc / /g' -e 's/-arch i386 / /g'`"
 			cat > conftest.$ac_ext <<EOF
-#line 3077 "configure"
+#line 3113 "configure"
 #include "confdefs.h"
 #include <CoreFoundation/CoreFoundation.h>
 int main() {
 CFBundleRef b = CFBundleGetMainBundle();
 ; return 0; }
 EOF
-if { (eval echo configure:3084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3120: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_lib_corefoundation_64=yes
 else
@@ -3393,7 +3429,7 @@ EOF
 	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
 	    # that don't grok the -Bexport option.  Test that it does.
 	    echo $ac_n "checking for ld accepts -Bexport flag""... $ac_c" 1>&6
-echo "configure:3397: checking for ld accepts -Bexport flag" >&5
+echo "configure:3433: checking for ld accepts -Bexport flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_Bexport'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3401,14 +3437,14 @@ else
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-Bexport"
 		cat > conftest.$ac_ext <<EOF
-#line 3405 "configure"
+#line 3441 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:3412: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3448: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_ld_Bexport=yes
 else
@@ -3455,13 +3491,13 @@ echo "$ac_t""$tcl_cv_ld_Bexport" 1>&6
 
     if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
 	echo $ac_n "checking sys/exec.h""... $ac_c" 1>&6
-echo "configure:3459: checking sys/exec.h" >&5
+echo "configure:3495: checking sys/exec.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_sysexec_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	cat > conftest.$ac_ext <<EOF
-#line 3465 "configure"
+#line 3501 "configure"
 #include "confdefs.h"
 #include <sys/exec.h>
 int main() {
@@ -3479,7 +3515,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:3483: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3519: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_sysexec_h=usable
 else
@@ -3499,13 +3535,13 @@ EOF
 
 	else
 	    echo $ac_n "checking a.out.h""... $ac_c" 1>&6
-echo "configure:3503: checking a.out.h" >&5
+echo "configure:3539: checking a.out.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_aout_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 3509 "configure"
+#line 3545 "configure"
 #include "confdefs.h"
 #include <a.out.h>
 int main() {
@@ -3523,7 +3559,7 @@ int main() {
 	    
 ; return 0; }
 EOF
-if { (eval echo configure:3527: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3563: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_aout_h=usable
 else
@@ -3543,13 +3579,13 @@ EOF
 
 	    else
 		echo $ac_n "checking sys/exec_aout.h""... $ac_c" 1>&6
-echo "configure:3547: checking sys/exec_aout.h" >&5
+echo "configure:3583: checking sys/exec_aout.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_sysexecaout_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		cat > conftest.$ac_ext <<EOF
-#line 3553 "configure"
+#line 3589 "configure"
 #include "confdefs.h"
 #include <sys/exec_aout.h>
 int main() {
@@ -3567,7 +3603,7 @@ int main() {
 		
 ; return 0; }
 EOF
-if { (eval echo configure:3571: \"$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*
   tcl_cv_sysexecaout_h=usable
 else
@@ -3720,7 +3756,7 @@ fi
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:3724: checking for build with symbols" >&5
+echo "configure:3760: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -3781,21 +3817,21 @@ TK_DBGX=${DBGX}
 
 
     echo $ac_n "checking for required early compiler flags""... $ac_c" 1>&6
-echo "configure:3785: checking for required early compiler flags" >&5
+echo "configure:3821: checking for required early compiler flags" >&5
     tcl_flags=""
     
     if eval "test \"`echo '$''{'tcl_cv_flag__isoc99_source'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3792 "configure"
+#line 3828 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 int main() {
 char *p = (char *)strtoll; char *q = (char *)strtoull;
 ; return 0; }
 EOF
-if { (eval echo configure:3799: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3835: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__isoc99_source=no
 else
@@ -3803,7 +3839,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3807 "configure"
+#line 3843 "configure"
 #include "confdefs.h"
 #define _ISOC99_SOURCE 1
 #include <stdlib.h>
@@ -3811,7 +3847,7 @@ int main() {
 char *p = (char *)strtoll; char *q = (char *)strtoull;
 ; return 0; }
 EOF
-if { (eval echo configure:3815: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3851: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__isoc99_source=yes
 else
@@ -3838,14 +3874,14 @@ EOF
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3842 "configure"
+#line 3878 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
 struct stat64 buf; int i = stat64("/", &buf);
 ; return 0; }
 EOF
-if { (eval echo configure:3849: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3885: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile64_source=no
 else
@@ -3853,7 +3889,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3857 "configure"
+#line 3893 "configure"
 #include "confdefs.h"
 #define _LARGEFILE64_SOURCE 1
 #include <sys/stat.h>
@@ -3861,7 +3897,7 @@ int main() {
 struct stat64 buf; int i = stat64("/", &buf);
 ; return 0; }
 EOF
-if { (eval echo configure:3865: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3901: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile64_source=yes
 else
@@ -3888,14 +3924,14 @@ EOF
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3892 "configure"
+#line 3928 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
 char *p = (char *)open64;
 ; return 0; }
 EOF
-if { (eval echo configure:3899: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3935: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile_source64=no
 else
@@ -3903,7 +3939,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3907 "configure"
+#line 3943 "configure"
 #include "confdefs.h"
 #define _LARGEFILE_SOURCE64 1
 #include <sys/stat.h>
@@ -3911,7 +3947,7 @@ int main() {
 char *p = (char *)open64;
 ; return 0; }
 EOF
-if { (eval echo configure:3915: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3951: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile_source64=yes
 else
@@ -3942,7 +3978,7 @@ EOF
 
 
     echo $ac_n "checking for 64-bit integer type""... $ac_c" 1>&6
-echo "configure:3946: checking for 64-bit integer type" >&5
+echo "configure:3982: checking for 64-bit integer type" >&5
     if eval "test \"`echo '$''{'tcl_cv_type_64bit'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3950,14 +3986,14 @@ else
 	tcl_cv_type_64bit=none
 	# See if the compiler knows natively about __int64
 	cat > conftest.$ac_ext <<EOF
-#line 3954 "configure"
+#line 3990 "configure"
 #include "confdefs.h"
 
 int main() {
 __int64 value = (__int64) 0;
 ; return 0; }
 EOF
-if { (eval echo configure:3961: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_type_64bit=__int64
 else
@@ -3971,7 +4007,7 @@ rm -f conftest*
 	# type that is our current guess for a 64-bit type inside this check
 	# program, so it should be modified only carefully...
         cat > conftest.$ac_ext <<EOF
-#line 3975 "configure"
+#line 4011 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3980,7 +4016,7 @@ switch (0) {
         }
 ; return 0; }
 EOF
-if { (eval echo configure:3984: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4020: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_64bit=${tcl_type_64bit}
 else
@@ -4005,13 +4041,13 @@ EOF
 
 	# Now check for auxiliary declarations
 	echo $ac_n "checking for struct dirent64""... $ac_c" 1>&6
-echo "configure:4009: checking for struct dirent64" >&5
+echo "configure:4045: checking for struct dirent64" >&5
 if eval "test \"`echo '$''{'tcl_cv_struct_dirent64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 4015 "configure"
+#line 4051 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/dirent.h>
@@ -4019,7 +4055,7 @@ int main() {
 struct dirent64 p;
 ; return 0; }
 EOF
-if { (eval echo configure:4023: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4059: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_struct_dirent64=yes
 else
@@ -4040,13 +4076,13 @@ EOF
 	fi
 
 	echo $ac_n "checking for struct stat64""... $ac_c" 1>&6
-echo "configure:4044: checking for struct stat64" >&5
+echo "configure:4080: checking for struct stat64" >&5
 if eval "test \"`echo '$''{'tcl_cv_struct_stat64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 4050 "configure"
+#line 4086 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
@@ -4054,7 +4090,7 @@ struct stat64 p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:4058: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4094: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_struct_stat64=yes
 else
@@ -4077,12 +4113,12 @@ EOF
 	for ac_func in open64 lseek64
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4081: checking for $ac_func" >&5
+echo "configure:4117: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4086 "configure"
+#line 4122 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4105,7 +4141,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4109: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4145: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4130,13 +4166,13 @@ fi
 done
 
 	echo $ac_n "checking for off64_t""... $ac_c" 1>&6
-echo "configure:4134: checking for off64_t" >&5
+echo "configure:4170: checking for off64_t" >&5
 	if eval "test \"`echo '$''{'tcl_cv_type_off64_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 4140 "configure"
+#line 4176 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
@@ -4144,7 +4180,7 @@ off64_t offset;
 
 ; return 0; }
 EOF
-if { (eval echo configure:4148: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4184: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_off64_t=yes
 else
@@ -4175,14 +4211,14 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:4179: checking whether byte ordering is bigendian" >&5
+echo "configure:4215: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_bigendian=unknown
 # See if sys/param.h defines the BYTE_ORDER macro.
 cat > conftest.$ac_ext <<EOF
-#line 4186 "configure"
+#line 4222 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -4193,11 +4229,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:4197: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4233: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   # It does; now see whether it defined to BIG_ENDIAN or not.
 cat > conftest.$ac_ext <<EOF
-#line 4201 "configure"
+#line 4237 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -4208,7 +4244,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:4212: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4248: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -4228,7 +4264,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 4232 "configure"
+#line 4268 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -4241,7 +4277,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:4245: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4281: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_bigendian=no
 else
@@ -4293,20 +4329,20 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for fd_set in sys/types""... $ac_c" 1>&6
-echo "configure:4297: checking for fd_set in sys/types" >&5
+echo "configure:4333: checking for fd_set in sys/types" >&5
 if eval "test \"`echo '$''{'tcl_cv_type_fd_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 4303 "configure"
+#line 4339 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
 fd_set readMask, writeMask;
 ; return 0; }
 EOF
-if { (eval echo configure:4310: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4346: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_fd_set=yes
 else
@@ -4322,13 +4358,13 @@ echo "$ac_t""$tcl_cv_type_fd_set" 1>&6
 tk_ok=$tcl_cv_type_fd_set
 if test $tk_ok = no; then
     echo $ac_n "checking for fd_mask in sys/select""... $ac_c" 1>&6
-echo "configure:4326: checking for fd_mask in sys/select" >&5
+echo "configure:4362: checking for fd_mask in sys/select" >&5
 if eval "test \"`echo '$''{'tcl_cv_grep_fd_mask'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	cat > conftest.$ac_ext <<EOF
-#line 4332 "configure"
+#line 4368 "configure"
 #include "confdefs.h"
 #include <sys/select.h>
 EOF
@@ -4368,17 +4404,17 @@ for ac_hdr in sys/time.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4372: checking for $ac_hdr" >&5
+echo "configure:4408: 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 4377 "configure"
+#line 4413 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4382: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4418: \"$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*
@@ -4405,12 +4441,12 @@ fi
 done
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:4409: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:4445: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4414 "configure"
+#line 4450 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -4419,7 +4455,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:4423: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4459: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -4449,12 +4485,12 @@ fi
 
 
     echo $ac_n "checking for strtod""... $ac_c" 1>&6
-echo "configure:4453: checking for strtod" >&5
+echo "configure:4489: checking for strtod" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4458 "configure"
+#line 4494 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtod(); below.  */
@@ -4477,7 +4513,7 @@ strtod();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4481: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4517: \"$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
@@ -4499,7 +4535,7 @@ fi
 
     if test "$tcl_strtod" = 1; then
 	echo $ac_n "checking for Solaris2.4/Tru64 strtod bugs""... $ac_c" 1>&6
-echo "configure:4503: checking for Solaris2.4/Tru64 strtod bugs" >&5
+echo "configure:4539: checking for Solaris2.4/Tru64 strtod bugs" >&5
 if eval "test \"`echo '$''{'tcl_cv_strtod_buggy'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4508,7 +4544,7 @@ else
   tcl_cv_strtod_buggy=buggy
 else
   cat > conftest.$ac_ext <<EOF
-#line 4512 "configure"
+#line 4548 "configure"
 #include "confdefs.h"
 
 		extern double strtod();
@@ -4531,7 +4567,7 @@ else
 		    exit(0);
 		}
 EOF
-if { (eval echo configure:4535: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4571: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_strtod_buggy=ok
 else
@@ -4562,12 +4598,12 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:4566: checking for ANSI C header files" >&5
+echo "configure:4602: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4571 "configure"
+#line 4607 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -4575,7 +4611,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4579: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4615: \"$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*
@@ -4592,7 +4628,7 @@ 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 4596 "configure"
+#line 4632 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -4610,7 +4646,7 @@ 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 4614 "configure"
+#line 4650 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -4631,7 +4667,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 4635 "configure"
+#line 4671 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -4642,7 +4678,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:4646: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4682: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -4666,12 +4702,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:4670: checking for mode_t" >&5
+echo "configure:4706: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4675 "configure"
+#line 4711 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4699,12 +4735,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:4703: checking for pid_t" >&5
+echo "configure:4739: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4708 "configure"
+#line 4744 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4732,12 +4768,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:4736: checking for size_t" >&5
+echo "configure:4772: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4741 "configure"
+#line 4777 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4765,12 +4801,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:4769: checking for uid_t in sys/types.h" >&5
+echo "configure:4805: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4774 "configure"
+#line 4810 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -4804,20 +4840,20 @@ fi
 #-------------------------------------------
 
 echo $ac_n "checking pw_gecos in struct pwd""... $ac_c" 1>&6
-echo "configure:4808: checking pw_gecos in struct pwd" >&5
+echo "configure:4844: checking pw_gecos in struct pwd" >&5
 if eval "test \"`echo '$''{'tcl_cv_pwd_pw_gecos'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 4814 "configure"
+#line 4850 "configure"
 #include "confdefs.h"
 #include <pwd.h>
 int main() {
 struct passwd pwd; pwd.pw_gecos;
 ; return 0; }
 EOF
-if { (eval echo configure:4821: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4857: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_pwd_pw_gecos=yes
 else
@@ -4843,7 +4879,7 @@ fi
 
 if test "`uname -s`" = "Darwin" ; then
     echo $ac_n "checking whether to use Aqua""... $ac_c" 1>&6
-echo "configure:4847: checking whether to use Aqua" >&5
+echo "configure:4883: checking whether to use Aqua" >&5
     # Check whether --enable-aqua or --disable-aqua was given.
 if test "${enable_aqua+set}" = set; then
   enableval="$enable_aqua"
@@ -4905,7 +4941,7 @@ else
 # 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:4909: checking for X" >&5
+echo "configure:4945: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -4967,12 +5003,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 4971 "configure"
+#line 5007 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4976: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5012: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5041,14 +5077,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5045 "configure"
+#line 5081 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:5052: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5088: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -5138,12 +5174,12 @@ fi
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
 	    cat > conftest.$ac_ext <<EOF
-#line 5142 "configure"
+#line 5178 "configure"
 #include "confdefs.h"
 #include <X11/XIntrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5147: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5183: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -5163,15 +5199,15 @@ rm -f conftest*
     fi
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	echo $ac_n "checking for X11 header files""... $ac_c" 1>&6
-echo "configure:5167: checking for X11 header files" >&5
+echo "configure:5203: checking for X11 header files" >&5
 	found_xincludes="no"
 	cat > conftest.$ac_ext <<EOF
-#line 5170 "configure"
+#line 5206 "configure"
 #include "confdefs.h"
 #include <X11/Intrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5175: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5211: \"$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*
@@ -5207,7 +5243,7 @@ rm -f conftest*
 
     if test "$no_x" = yes; then
 	echo $ac_n "checking for X11 libraries""... $ac_c" 1>&6
-echo "configure:5211: checking for X11 libraries" >&5
+echo "configure:5247: 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 $dirs ; do
@@ -5227,7 +5263,7 @@ echo "configure:5211: checking for X11 libraries" >&5
     fi
     if test "$XLIBSW" = nope ; then
 	echo $ac_n "checking for XCreateWindow in -lXwindow""... $ac_c" 1>&6
-echo "configure:5231: checking for XCreateWindow in -lXwindow" >&5
+echo "configure:5267: checking for XCreateWindow in -lXwindow" >&5
 ac_lib_var=`echo Xwindow'_'XCreateWindow | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5235,7 +5271,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXwindow  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5239 "configure"
+#line 5275 "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
@@ -5246,7 +5282,7 @@ int main() {
 XCreateWindow()
 ; return 0; }
 EOF
-if { (eval echo configure:5250: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5286: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5323,7 +5359,7 @@ eval "LD_SEARCH_FLAGS=\"$TCL_LD_SEARCH_FLAGS\""
 
 if test $tk_aqua = no; then
     echo $ac_n "checking for main in -lXbsd""... $ac_c" 1>&6
-echo "configure:5327: checking for main in -lXbsd" >&5
+echo "configure:5363: checking for main in -lXbsd" >&5
 ac_lib_var=`echo Xbsd'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5331,14 +5367,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5335 "configure"
+#line 5371 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5342: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5378: \"$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
@@ -5362,12 +5398,12 @@ fi
 
 tk_checkBoth=0
 echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:5366: checking for connect" >&5
+echo "configure:5402: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5371 "configure"
+#line 5407 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -5390,7 +5426,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5394: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5430: \"$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
@@ -5412,7 +5448,7 @@ fi
 
 if test "$tk_checkSocket" = 1; then
     echo $ac_n "checking for main in -lsocket""... $ac_c" 1>&6
-echo "configure:5416: checking for main in -lsocket" >&5
+echo "configure:5452: checking for main in -lsocket" >&5
 ac_lib_var=`echo socket'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5420,14 +5456,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5424 "configure"
+#line 5460 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5431: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5467: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5453,12 +5489,12 @@ if test "$tk_checkBoth" = 1; then
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lsocket -lnsl"
     echo $ac_n "checking for accept""... $ac_c" 1>&6
-echo "configure:5457: checking for accept" >&5
+echo "configure:5493: checking for accept" >&5
 if eval "test \"`echo '$''{'ac_cv_func_accept'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5462 "configure"
+#line 5498 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char accept(); below.  */
@@ -5481,7 +5517,7 @@ accept();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5485: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5521: \"$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
@@ -5503,12 +5539,12 @@ fi
 
 fi
 echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:5507: checking for gethostbyname" >&5
+echo "configure:5543: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5512 "configure"
+#line 5548 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -5531,7 +5567,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5535: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5571: \"$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
@@ -5549,7 +5585,7 @@ 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""... $ac_c" 1>&6
-echo "configure:5553: checking for main in -lnsl" >&5
+echo "configure:5589: checking for main in -lnsl" >&5
 ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5557,14 +5593,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5561 "configure"
+#line 5597 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5568: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5604: \"$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
@@ -5600,13 +5636,13 @@ fi
 
 if test -d /usr/include/mit -a $tk_aqua = no; then
     echo $ac_n "checking MIT X libraries""... $ac_c" 1>&6
-echo "configure:5604: checking MIT X libraries" >&5
+echo "configure:5640: checking MIT X libraries" >&5
     tk_oldCFlags=$CFLAGS
     CFLAGS="$CFLAGS -I/usr/include/mit"
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lX11-mit"
     cat > conftest.$ac_ext <<EOF
-#line 5610 "configure"
+#line 5646 "configure"
 #include "confdefs.h"
 
 	#include <X11/Xlib.h>
@@ -5617,7 +5653,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:5621: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5657: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   
 	echo "$ac_t""yes" 1>&6
@@ -5641,14 +5677,14 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether char is unsigned""... $ac_c" 1>&6
-echo "configure:5645: checking whether char is unsigned" >&5
+echo "configure:5681: checking whether char is unsigned" >&5
 if eval "test \"`echo '$''{'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.$ac_ext <<EOF
-#line 5652 "configure"
+#line 5688 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -5670,7 +5706,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 5674 "configure"
+#line 5710 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -5680,7 +5716,7 @@ main() {
   volatile char c = 255; exit(c < 0);
 }
 EOF
-if { (eval echo configure:5684: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5720: \"$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
@@ -5741,7 +5777,7 @@ if test "`uname -s`" = "Darwin" ; then
     
     if test "`uname -s`" = "Darwin" ; then
 	echo $ac_n "checking how to package libraries""... $ac_c" 1>&6
-echo "configure:5745: checking how to package libraries" >&5
+echo "configure:5781: checking how to package libraries" >&5
 	# Check whether --enable-framework or --disable-framework was given.
 if test "${enable_framework+set}" = set; then
   enableval="$enable_framework"
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index d6565a7..f3d9f1b 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -1341,7 +1341,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
 
 	    if test "$have_dl" = yes; then
-		SHLIB_LD="${CC} -shared"
+		SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
 		DL_OBJS="tclLoadDl.o"
 		DL_LIBS="-ldl"
 		LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
@@ -1358,6 +1358,17 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    if test "`uname -m`" = "alpha" ; then
 		CFLAGS="$CFLAGS -mieee"
 	    fi
+	    if test $do64bit = yes; then
+		AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
+		    hold_cflags=$CFLAGS
+		    CFLAGS="$CFLAGS -m64"
+		    AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
+		    CFLAGS=$hold_cflags])
+		if test $tcl_cv_cc_m64 = yes; then
+		    CFLAGS="$CFLAGS -m64"
+		    do64bit_ok=yes
+		fi
+	    fi
 
 	    # The combo of gcc + glibc has a bug related
 	    # to inlining of functions like strtod(). The