* unix/configure, unix/tcl.m4: add solaris 64-bit gcc build support.

	[Bug 1021871]

1 files changed, 272 insertions, 253 deletions

diff --git a/unix/configure b/unix/configure
index 067be0b..dd8c682 100755
--- a/unix/configure
+++ b/unix/configure
@@ -3251,7 +3251,15 @@ EOF
 		arch=`isainfo`
 		if test "$arch" = "sparcv9 sparc" ; then
 			if test "$GCC" = "yes" ; then
-			    echo "configure: warning: "64bit mode not supported with GCC on $system"" 1>&2
+			    if test "`gcc -dumpversion` | awk -F. '{print }'" -lt "3" ; then
+				echo "configure: warning: 64bit mode not supported with GCC < 3.2 on $system" 1>&2
+			    else
+				do64bit_ok=yes
+				CFLAGS="$CFLAGS -m64 -mcpu=v9"
+				LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
+				SHLIB_CFLAGS="-fPIC"
+				SHLIB_LD_FLAGS=""
+			    fi
 			else
 			    do64bit_ok=yes
 			    if test "$do64bitVIS" = "yes" ; then
@@ -3261,9 +3269,11 @@ EOF
 				CFLAGS="$CFLAGS -xarch=v9"
 			    	LDFLAGS="$LDFLAGS -xarch=v9"
 			    fi
+			    # Solaris 64 uses this as well
+			    #LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
 			fi
 		else
-		    echo "configure: warning: "64bit mode only supported sparcv9 system"" 1>&2
+		    echo "configure: warning: 64bit mode only supported sparcv9 system" 1>&2
 		fi
 	    fi
 	    
@@ -3278,6 +3288,15 @@ EOF
 		SHLIB_LD="$CC -shared"
 		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+		if test "$do64bit" = "yes" ; then
+		    # We need to specify -static-libgcc or we need to
+		    # add the path to the sparv9 libgcc.
+		    SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
+		    # for finding sparcv9 libgcc, get the regular libgcc
+		    # path, remove so name and append 'sparcv9'
+		    #v9gcclibdir="`gcc -print-file-name=libgcc_s.so` | ..."
+		    #CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
+		fi
 	    else
 		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
 		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
@@ -3309,17 +3328,17 @@ EOF
 	    # that don't grok the -Bexport option.  Test that it does.
 	    hold_ldflags=$LDFLAGS
 	    echo $ac_n "checking for ld accepts -Bexport flag""... $ac_c" 1>&6
-echo "configure:3313: checking for ld accepts -Bexport flag" >&5
+echo "configure:3332: checking for ld accepts -Bexport flag" >&5
 	    LDFLAGS="$LDFLAGS -Wl,-Bexport"
 	    cat > conftest.$ac_ext <<EOF
-#line 3316 "configure"
+#line 3335 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:3323: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3342: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   found=yes
 else
@@ -3360,9 +3379,9 @@ rm -f conftest*
 
     if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
 	echo $ac_n "checking sys/exec.h""... $ac_c" 1>&6
-echo "configure:3364: checking sys/exec.h" >&5
+echo "configure:3383: checking sys/exec.h" >&5
 	cat > conftest.$ac_ext <<EOF
-#line 3366 "configure"
+#line 3385 "configure"
 #include "confdefs.h"
 #include <sys/exec.h>
 int main() {
@@ -3380,7 +3399,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:3384: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3403: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -3398,9 +3417,9 @@ EOF
 
 	else
 	    echo $ac_n "checking a.out.h""... $ac_c" 1>&6
-echo "configure:3402: checking a.out.h" >&5
+echo "configure:3421: checking a.out.h" >&5
 	    cat > conftest.$ac_ext <<EOF
-#line 3404 "configure"
+#line 3423 "configure"
 #include "confdefs.h"
 #include <a.out.h>
 int main() {
@@ -3418,7 +3437,7 @@ int main() {
 	    
 ; return 0; }
 EOF
-if { (eval echo configure:3422: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3441: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -3436,9 +3455,9 @@ EOF
 
 	    else
 		echo $ac_n "checking sys/exec_aout.h""... $ac_c" 1>&6
-echo "configure:3440: checking sys/exec_aout.h" >&5
+echo "configure:3459: checking sys/exec_aout.h" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 3442 "configure"
+#line 3461 "configure"
 #include "confdefs.h"
 #include <sys/exec_aout.h>
 int main() {
@@ -3456,7 +3475,7 @@ int main() {
 		
 ; return 0; }
 EOF
-if { (eval echo configure:3460: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3479: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_ok=usable
 else
@@ -3607,7 +3626,7 @@ fi
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:3611: checking for build with symbols" >&5
+echo "configure:3630: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -3668,21 +3687,21 @@ TCL_DBGX=${DBGX}
 
 
     echo $ac_n "checking for required early compiler flags""... $ac_c" 1>&6
-echo "configure:3672: checking for required early compiler flags" >&5
+echo "configure:3691: 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 3679 "configure"
+#line 3698 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 int main() {
 char *p = (char *)strtoll; char *q = (char *)strtoull;
 ; return 0; }
 EOF
-if { (eval echo configure:3686: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3705: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__isoc99_source=no
 else
@@ -3690,7 +3709,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3694 "configure"
+#line 3713 "configure"
 #include "confdefs.h"
 #define _ISOC99_SOURCE 1
 #include <stdlib.h>
@@ -3698,7 +3717,7 @@ int main() {
 char *p = (char *)strtoll; char *q = (char *)strtoull;
 ; return 0; }
 EOF
-if { (eval echo configure:3702: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3721: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__isoc99_source=yes
 else
@@ -3724,14 +3743,14 @@ EOF
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3728 "configure"
+#line 3747 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
 struct stat64 buf; int i = stat64("/", &buf);
 ; return 0; }
 EOF
-if { (eval echo configure:3735: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3754: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile64_source=no
 else
@@ -3739,7 +3758,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3743 "configure"
+#line 3762 "configure"
 #include "confdefs.h"
 #define _LARGEFILE64_SOURCE 1
 #include <sys/stat.h>
@@ -3747,7 +3766,7 @@ int main() {
 struct stat64 buf; int i = stat64("/", &buf);
 ; return 0; }
 EOF
-if { (eval echo configure:3751: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3770: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile64_source=yes
 else
@@ -3776,7 +3795,7 @@ EOF
 
 
     echo $ac_n "checking for 64-bit integer type""... $ac_c" 1>&6
-echo "configure:3780: checking for 64-bit integer type" >&5
+echo "configure:3799: checking for 64-bit integer type" >&5
     if eval "test \"`echo '$''{'tcl_cv_type_64bit'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3784,14 +3803,14 @@ else
 	tcl_cv_type_64bit=none
 	# See if the compiler knows natively about __int64
 	cat > conftest.$ac_ext <<EOF
-#line 3788 "configure"
+#line 3807 "configure"
 #include "confdefs.h"
 
 int main() {
 __int64 value = (__int64) 0;
 ; return 0; }
 EOF
-if { (eval echo configure:3795: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3814: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_type_64bit=__int64
 else
@@ -3805,7 +3824,7 @@ rm -f conftest*
 	# type that is our current guess for a 64-bit type inside this check
 	# program, so it should be modified only carefully...
         cat > conftest.$ac_ext <<EOF
-#line 3809 "configure"
+#line 3828 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3814,7 +3833,7 @@ switch (0) {
         }
 ; return 0; }
 EOF
-if { (eval echo configure:3818: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3837: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_64bit=${tcl_type_64bit}
 else
@@ -3839,13 +3858,13 @@ EOF
 
 	# Now check for auxiliary declarations
 	echo $ac_n "checking for struct dirent64""... $ac_c" 1>&6
-echo "configure:3843: checking for struct dirent64" >&5
+echo "configure:3862: checking for struct dirent64" >&5
 	if eval "test \"`echo '$''{'tcl_cv_struct_dirent64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 3849 "configure"
+#line 3868 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/dirent.h>
@@ -3853,7 +3872,7 @@ int main() {
 struct dirent64 p;
 ; return 0; }
 EOF
-if { (eval echo configure:3857: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3876: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_struct_dirent64=yes
 else
@@ -3874,13 +3893,13 @@ EOF
 	echo "$ac_t""${tcl_cv_struct_dirent64}" 1>&6
 
 	echo $ac_n "checking for struct stat64""... $ac_c" 1>&6
-echo "configure:3878: checking for struct stat64" >&5
+echo "configure:3897: checking for struct stat64" >&5
 	if eval "test \"`echo '$''{'tcl_cv_struct_stat64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 3884 "configure"
+#line 3903 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
@@ -3888,7 +3907,7 @@ struct stat64 p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:3892: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3911: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_struct_stat64=yes
 else
@@ -3909,13 +3928,13 @@ EOF
 	echo "$ac_t""${tcl_cv_struct_stat64}" 1>&6
 
 	echo $ac_n "checking for off64_t""... $ac_c" 1>&6
-echo "configure:3913: checking for off64_t" >&5
+echo "configure:3932: checking for off64_t" >&5
 	if eval "test \"`echo '$''{'tcl_cv_type_off64_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 3919 "configure"
+#line 3938 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
@@ -3923,7 +3942,7 @@ off64_t offset;
 
 ; return 0; }
 EOF
-if { (eval echo configure:3927: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3946: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_off64_t=yes
 else
@@ -3938,12 +3957,12 @@ fi
 	for ac_func in open64 lseek64
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3942: checking for $ac_func" >&5
+echo "configure:3961: 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 3947 "configure"
+#line 3966 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3966,7 +3985,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3970: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3989: \"$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
@@ -4009,14 +4028,14 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:4013: checking whether byte ordering is bigendian" >&5
+echo "configure:4032: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'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 4020 "configure"
+#line 4039 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -4027,11 +4046,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:4031: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4050: \"$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 4035 "configure"
+#line 4054 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -4042,7 +4061,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:4046: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4065: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -4062,7 +4081,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 4066 "configure"
+#line 4085 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -4075,7 +4094,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:4079: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4098: \"$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
@@ -4108,12 +4127,12 @@ fi
 for ac_func in getcwd
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4112: checking for $ac_func" >&5
+echo "configure:4131: 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 4117 "configure"
+#line 4136 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4136,7 +4155,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4140: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4159: \"$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
@@ -4170,12 +4189,12 @@ done
 for ac_func in opendir strstr
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4174: checking for $ac_func" >&5
+echo "configure:4193: 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 4179 "configure"
+#line 4198 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4198,7 +4217,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4202: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4221: \"$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
@@ -4228,12 +4247,12 @@ done
 for ac_func in strtol strtoll strtoull tmpnam waitpid
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4232: checking for $ac_func" >&5
+echo "configure:4251: 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 4237 "configure"
+#line 4256 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4256,7 +4275,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4260: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4279: \"$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
@@ -4283,12 +4302,12 @@ done
 
 
 echo $ac_n "checking for strerror""... $ac_c" 1>&6
-echo "configure:4287: checking for strerror" >&5
+echo "configure:4306: checking for strerror" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strerror'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4292 "configure"
+#line 4311 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strerror(); below.  */
@@ -4311,7 +4330,7 @@ strerror();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4315: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4334: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strerror=yes"
 else
@@ -4335,12 +4354,12 @@ EOF
 fi
 
 echo $ac_n "checking for getwd""... $ac_c" 1>&6
-echo "configure:4339: checking for getwd" >&5
+echo "configure:4358: checking for getwd" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getwd'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4344 "configure"
+#line 4363 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getwd(); below.  */
@@ -4363,7 +4382,7 @@ getwd();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4367: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4386: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getwd=yes"
 else
@@ -4387,12 +4406,12 @@ EOF
 fi
 
 echo $ac_n "checking for wait3""... $ac_c" 1>&6
-echo "configure:4391: checking for wait3" >&5
+echo "configure:4410: checking for wait3" >&5
 if eval "test \"`echo '$''{'ac_cv_func_wait3'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4396 "configure"
+#line 4415 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char wait3(); below.  */
@@ -4415,7 +4434,7 @@ wait3();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4419: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4438: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_wait3=yes"
 else
@@ -4439,12 +4458,12 @@ EOF
 fi
 
 echo $ac_n "checking for uname""... $ac_c" 1>&6
-echo "configure:4443: checking for uname" >&5
+echo "configure:4462: checking for uname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_uname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4448 "configure"
+#line 4467 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char uname(); below.  */
@@ -4467,7 +4486,7 @@ uname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4471: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4490: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_uname=yes"
 else
@@ -4491,12 +4510,12 @@ EOF
 fi
 
 echo $ac_n "checking for realpath""... $ac_c" 1>&6
-echo "configure:4495: checking for realpath" >&5
+echo "configure:4514: checking for realpath" >&5
 if eval "test \"`echo '$''{'ac_cv_func_realpath'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4500 "configure"
+#line 4519 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char realpath(); below.  */
@@ -4519,7 +4538,7 @@ realpath();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4523: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4542: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_realpath=yes"
 else
@@ -4554,9 +4573,9 @@ fi
 
 
     echo $ac_n "checking dirent.h""... $ac_c" 1>&6
-echo "configure:4558: checking dirent.h" >&5
+echo "configure:4577: checking dirent.h" >&5
     cat > conftest.$ac_ext <<EOF
-#line 4560 "configure"
+#line 4579 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <dirent.h>
@@ -4582,7 +4601,7 @@ closedir(d);
 
 ; return 0; }
 EOF
-if { (eval echo configure:4586: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4605: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_ok=yes
 else
@@ -4603,17 +4622,17 @@ EOF
     echo "$ac_t""$tcl_ok" 1>&6
     ac_safe=`echo "errno.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for errno.h""... $ac_c" 1>&6
-echo "configure:4607: checking for errno.h" >&5
+echo "configure:4626: checking for errno.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4612 "configure"
+#line 4631 "configure"
 #include "confdefs.h"
 #include <errno.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4617: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4636: \"$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*
@@ -4640,17 +4659,17 @@ fi
 
     ac_safe=`echo "float.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for float.h""... $ac_c" 1>&6
-echo "configure:4644: checking for float.h" >&5
+echo "configure:4663: checking for float.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4649 "configure"
+#line 4668 "configure"
 #include "confdefs.h"
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4654: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4673: \"$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*
@@ -4677,17 +4696,17 @@ fi
 
     ac_safe=`echo "values.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for values.h""... $ac_c" 1>&6
-echo "configure:4681: checking for values.h" >&5
+echo "configure:4700: checking for values.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4686 "configure"
+#line 4705 "configure"
 #include "confdefs.h"
 #include <values.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4691: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4710: \"$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*
@@ -4714,17 +4733,17 @@ fi
 
     ac_safe=`echo "limits.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for limits.h""... $ac_c" 1>&6
-echo "configure:4718: checking for limits.h" >&5
+echo "configure:4737: checking for limits.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4723 "configure"
+#line 4742 "configure"
 #include "confdefs.h"
 #include <limits.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4728: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4747: \"$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*
@@ -4754,17 +4773,17 @@ fi
 
     ac_safe=`echo "stdlib.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for stdlib.h""... $ac_c" 1>&6
-echo "configure:4758: checking for stdlib.h" >&5
+echo "configure:4777: checking for stdlib.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4763 "configure"
+#line 4782 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4768: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4787: \"$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*
@@ -4787,7 +4806,7 @@ tcl_ok=0
 fi
 
     cat > conftest.$ac_ext <<EOF
-#line 4791 "configure"
+#line 4810 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -4801,7 +4820,7 @@ fi
 rm -f conftest*
 
     cat > conftest.$ac_ext <<EOF
-#line 4805 "configure"
+#line 4824 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -4815,7 +4834,7 @@ fi
 rm -f conftest*
 
     cat > conftest.$ac_ext <<EOF
-#line 4819 "configure"
+#line 4838 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -4836,17 +4855,17 @@ EOF
     fi
     ac_safe=`echo "string.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for string.h""... $ac_c" 1>&6
-echo "configure:4840: checking for string.h" >&5
+echo "configure:4859: checking for string.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4845 "configure"
+#line 4864 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4850: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4869: \"$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*
@@ -4869,7 +4888,7 @@ tcl_ok=0
 fi
 
     cat > conftest.$ac_ext <<EOF
-#line 4873 "configure"
+#line 4892 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -4883,7 +4902,7 @@ fi
 rm -f conftest*
 
     cat > conftest.$ac_ext <<EOF
-#line 4887 "configure"
+#line 4906 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -4909,17 +4928,17 @@ EOF
 
     ac_safe=`echo "sys/wait.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for sys/wait.h""... $ac_c" 1>&6
-echo "configure:4913: checking for sys/wait.h" >&5
+echo "configure:4932: checking for sys/wait.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4918 "configure"
+#line 4937 "configure"
 #include "confdefs.h"
 #include <sys/wait.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4923: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4942: \"$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*
@@ -4946,17 +4965,17 @@ fi
 
     ac_safe=`echo "dlfcn.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dlfcn.h""... $ac_c" 1>&6
-echo "configure:4950: checking for dlfcn.h" >&5
+echo "configure:4969: checking for dlfcn.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4955 "configure"
+#line 4974 "configure"
 #include "confdefs.h"
 #include <dlfcn.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4960: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4979: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4988,17 +5007,17 @@ fi
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4992: checking for $ac_hdr" >&5
+echo "configure:5011: 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 4997 "configure"
+#line 5016 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5002: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5021: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5038,17 +5057,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5042: checking for $ac_hdr" >&5
+echo "configure:5061: 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 5047 "configure"
+#line 5066 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5052: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5071: \"$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*
@@ -5075,7 +5094,7 @@ fi
 done
 
     echo $ac_n "checking termios vs. termio vs. sgtty""... $ac_c" 1>&6
-echo "configure:5079: checking termios vs. termio vs. sgtty" >&5
+echo "configure:5098: checking termios vs. termio vs. sgtty" >&5
     if eval "test \"`echo '$''{'tcl_cv_api_serial'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5084,7 +5103,7 @@ else
   tcl_cv_api_serial=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5088 "configure"
+#line 5107 "configure"
 #include "confdefs.h"
 
 #include <termios.h>
@@ -5099,7 +5118,7 @@ int main() {
     return 1;
 }
 EOF
-if { (eval echo configure:5103: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5122: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_api_serial=termios
 else
@@ -5116,7 +5135,7 @@ fi
   tcl_cv_api_serial=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5120 "configure"
+#line 5139 "configure"
 #include "confdefs.h"
 
 #include <termio.h>
@@ -5130,7 +5149,7 @@ int main() {
     return 1;
 }
 EOF
-if { (eval echo configure:5134: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5153: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_api_serial=termio
 else
@@ -5148,7 +5167,7 @@ fi
   tcl_cv_api_serial=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5152 "configure"
+#line 5171 "configure"
 #include "confdefs.h"
 
 #include <sgtty.h>
@@ -5163,7 +5182,7 @@ int main() {
     return 1;
 }
 EOF
-if { (eval echo configure:5167: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5186: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_api_serial=sgtty
 else
@@ -5181,7 +5200,7 @@ fi
   tcl_cv_api_serial=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5185 "configure"
+#line 5204 "configure"
 #include "confdefs.h"
 
 #include <termios.h>
@@ -5198,7 +5217,7 @@ int main() {
     return 1;
 }
 EOF
-if { (eval echo configure:5202: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5221: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_api_serial=termios
 else
@@ -5216,7 +5235,7 @@ fi
   tcl_cv_api_serial=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5220 "configure"
+#line 5239 "configure"
 #include "confdefs.h"
 
 #include <termio.h>
@@ -5232,7 +5251,7 @@ int main() {
     return 1;
     }
 EOF
-if { (eval echo configure:5236: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5255: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_api_serial=termio
 else
@@ -5250,7 +5269,7 @@ fi
   tcl_cv_api_serial=none
 else
   cat > conftest.$ac_ext <<EOF
-#line 5254 "configure"
+#line 5273 "configure"
 #include "confdefs.h"
 
 #include <sgtty.h>
@@ -5267,7 +5286,7 @@ int main() {
     return 1;
 }
 EOF
-if { (eval echo configure:5271: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5290: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_api_serial=sgtty
 else
@@ -5310,19 +5329,19 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for fd_set in sys/types""... $ac_c" 1>&6
-echo "configure:5314: checking for fd_set in sys/types" >&5
+echo "configure:5333: checking for fd_set in sys/types" >&5
 if eval "test \"`echo '$''{'tcl_cv_type_fd_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5319 "configure"
+#line 5338 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
 fd_set readMask, writeMask;
 ; return 0; }
 EOF
-if { (eval echo configure:5326: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5345: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_fd_set=yes
 else
@@ -5338,12 +5357,12 @@ echo "$ac_t""$tcl_cv_type_fd_set" 1>&6
 tk_ok=$tcl_cv_type_fd_set
 if test $tcl_cv_type_fd_set = no; then
     echo $ac_n "checking for fd_mask in sys/select""... $ac_c" 1>&6
-echo "configure:5342: checking for fd_mask in sys/select" >&5
+echo "configure:5361: checking for fd_mask in sys/select" >&5
     if eval "test \"`echo '$''{'tcl_cv_grep_fd_mask'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5347 "configure"
+#line 5366 "configure"
 #include "confdefs.h"
 #include <sys/select.h>
 EOF
@@ -5380,12 +5399,12 @@ fi
 #------------------------------------------------------------------------------
 
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:5384: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:5403: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5389 "configure"
+#line 5408 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -5393,7 +5412,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:5397: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5416: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -5418,17 +5437,17 @@ fi
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:5422: checking for $ac_hdr" >&5
+echo "configure:5441: 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 5427 "configure"
+#line 5446 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5432: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5451: \"$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*
@@ -5455,12 +5474,12 @@ fi
 done
 
     echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:5459: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:5478: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5464 "configure"
+#line 5483 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -5469,7 +5488,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:5473: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5492: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -5490,12 +5509,12 @@ EOF
 fi
 
     echo $ac_n "checking for tm_zone in struct tm""... $ac_c" 1>&6
-echo "configure:5494: checking for tm_zone in struct tm" >&5
+echo "configure:5513: checking for tm_zone in struct tm" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm_zone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5499 "configure"
+#line 5518 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_cv_struct_tm>
@@ -5503,7 +5522,7 @@ int main() {
 struct tm tm; tm.tm_zone;
 ; return 0; }
 EOF
-if { (eval echo configure:5507: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5526: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm_zone=yes
 else
@@ -5523,12 +5542,12 @@ EOF
 
 else
   echo $ac_n "checking for tzname""... $ac_c" 1>&6
-echo "configure:5527: checking for tzname" >&5
+echo "configure:5546: checking for tzname" >&5
 if eval "test \"`echo '$''{'ac_cv_var_tzname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5532 "configure"
+#line 5551 "configure"
 #include "confdefs.h"
 #include <time.h>
 #ifndef tzname /* For SGI.  */
@@ -5538,7 +5557,7 @@ int main() {
 atoi(*tzname);
 ; return 0; }
 EOF
-if { (eval echo configure:5542: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5561: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_var_tzname=yes
 else
@@ -5563,12 +5582,12 @@ fi
     for ac_func in gmtime_r localtime_r
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5567: checking for $ac_func" >&5
+echo "configure:5586: 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 5572 "configure"
+#line 5591 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5591,7 +5610,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5614: \"$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
@@ -5617,19 +5636,19 @@ done
 
 
     echo $ac_n "checking tm_tzadj in struct tm""... $ac_c" 1>&6
-echo "configure:5621: checking tm_tzadj in struct tm" >&5
+echo "configure:5640: checking tm_tzadj in struct tm" >&5
     if eval "test \"`echo '$''{'tcl_cv_member_tm_tzadj'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5626 "configure"
+#line 5645 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 struct tm tm; tm.tm_tzadj;
 ; return 0; }
 EOF
-if { (eval echo configure:5633: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5652: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_member_tm_tzadj=yes
 else
@@ -5650,19 +5669,19 @@ EOF
     fi
 
     echo $ac_n "checking tm_gmtoff in struct tm""... $ac_c" 1>&6
-echo "configure:5654: checking tm_gmtoff in struct tm" >&5
+echo "configure:5673: checking tm_gmtoff in struct tm" >&5
     if eval "test \"`echo '$''{'tcl_cv_member_tm_gmtoff'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5659 "configure"
+#line 5678 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 struct tm tm; tm.tm_gmtoff;
 ; return 0; }
 EOF
-if { (eval echo configure:5666: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5685: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_member_tm_gmtoff=yes
 else
@@ -5687,12 +5706,12 @@ EOF
     # (like convex) have timezone functions, etc.
     #
     echo $ac_n "checking long timezone variable""... $ac_c" 1>&6
-echo "configure:5691: checking long timezone variable" >&5
+echo "configure:5710: checking long timezone variable" >&5
     if eval "test \"`echo '$''{'tcl_cv_var_timezone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5696 "configure"
+#line 5715 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
@@ -5701,7 +5720,7 @@ extern long timezone;
 	    exit (0);
 ; return 0; }
 EOF
-if { (eval echo configure:5705: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5724: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_timezone_long=yes
 else
@@ -5724,12 +5743,12 @@ EOF
 	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
 	#
 	echo $ac_n "checking time_t timezone variable""... $ac_c" 1>&6
-echo "configure:5728: checking time_t timezone variable" >&5
+echo "configure:5747: checking time_t timezone variable" >&5
 	if eval "test \"`echo '$''{'tcl_cv_timezone_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5733 "configure"
+#line 5752 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
@@ -5738,7 +5757,7 @@ extern time_t timezone;
 		exit (0);
 ; return 0; }
 EOF
-if { (eval echo configure:5742: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5761: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_timezone_time=yes
 else
@@ -5765,12 +5784,12 @@ EOF
 #	in struct stat.  But we might be able to use fstatfs instead.
 #--------------------------------------------------------------------
 echo $ac_n "checking for st_blksize in struct stat""... $ac_c" 1>&6
-echo "configure:5769: checking for st_blksize in struct stat" >&5
+echo "configure:5788: checking for st_blksize in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blksize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5774 "configure"
+#line 5793 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -5778,7 +5797,7 @@ int main() {
 struct stat s; s.st_blksize;
 ; return 0; }
 EOF
-if { (eval echo configure:5782: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5801: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blksize=yes
 else
@@ -5799,12 +5818,12 @@ EOF
 fi
 
 echo $ac_n "checking for fstatfs""... $ac_c" 1>&6
-echo "configure:5803: checking for fstatfs" >&5
+echo "configure:5822: checking for fstatfs" >&5
 if eval "test \"`echo '$''{'ac_cv_func_fstatfs'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5808 "configure"
+#line 5827 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char fstatfs(); below.  */
@@ -5827,7 +5846,7 @@ fstatfs();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5831: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5850: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_fstatfs=yes"
 else
@@ -5856,7 +5875,7 @@ fi
 #       data, this checks it and add memcmp.o to LIBOBJS if needed
 #--------------------------------------------------------------------
 echo $ac_n "checking for 8-bit clean memcmp""... $ac_c" 1>&6
-echo "configure:5860: checking for 8-bit clean memcmp" >&5
+echo "configure:5879: checking for 8-bit clean memcmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_memcmp_clean'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5864,7 +5883,7 @@ else
   ac_cv_func_memcmp_clean=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5868 "configure"
+#line 5887 "configure"
 #include "confdefs.h"
 
 main()
@@ -5874,7 +5893,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:5878: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5897: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_memcmp_clean=yes
 else
@@ -5898,12 +5917,12 @@ test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.${ac_objext}"
 #       {The replacement define is in compat/string.h}
 #--------------------------------------------------------------------
 echo $ac_n "checking for memmove""... $ac_c" 1>&6
-echo "configure:5902: checking for memmove" >&5
+echo "configure:5921: checking for memmove" >&5
 if eval "test \"`echo '$''{'ac_cv_func_memmove'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5907 "configure"
+#line 5926 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char memmove(); below.  */
@@ -5926,7 +5945,7 @@ memmove();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5930: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5949: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_memmove=yes"
 else
@@ -5959,12 +5978,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking proper strstr implementation""... $ac_c" 1>&6
-echo "configure:5963: checking proper strstr implementation" >&5
+echo "configure:5982: checking proper strstr implementation" >&5
 if test "$cross_compiling" = yes; then
   tcl_ok=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 5968 "configure"
+#line 5987 "configure"
 #include "confdefs.h"
 
 extern int strstr();
@@ -5974,7 +5993,7 @@ int main()
 }
 
 EOF
-if { (eval echo configure:5978: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5997: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_ok=yes
 else
@@ -6000,12 +6019,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for strtoul""... $ac_c" 1>&6
-echo "configure:6004: checking for strtoul" >&5
+echo "configure:6023: checking for strtoul" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtoul'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6009 "configure"
+#line 6028 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtoul(); below.  */
@@ -6028,7 +6047,7 @@ strtoul();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6032: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6051: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtoul=yes"
 else
@@ -6052,7 +6071,7 @@ if test "$cross_compiling" = yes; then
   tcl_ok=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 6056 "configure"
+#line 6075 "configure"
 #include "confdefs.h"
 
 extern int strtoul();
@@ -6068,7 +6087,7 @@ int main()
     exit(0);
 }
 EOF
-if { (eval echo configure:6072: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6091: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -6091,12 +6110,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for strtod""... $ac_c" 1>&6
-echo "configure:6095: checking for strtod" >&5
+echo "configure:6114: checking for strtod" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6100 "configure"
+#line 6119 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtod(); below.  */
@@ -6119,7 +6138,7 @@ strtod();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6123: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6142: \"$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
@@ -6143,7 +6162,7 @@ if test "$cross_compiling" = yes; then
   tcl_ok=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 6147 "configure"
+#line 6166 "configure"
 #include "confdefs.h"
 
 extern double strtod();
@@ -6159,7 +6178,7 @@ int main()
     exit(0);
 }
 EOF
-if { (eval echo configure:6163: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6182: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -6185,12 +6204,12 @@ fi
 
 
     echo $ac_n "checking for strtod""... $ac_c" 1>&6
-echo "configure:6189: checking for strtod" >&5
+echo "configure:6208: checking for strtod" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6194 "configure"
+#line 6213 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtod(); below.  */
@@ -6213,7 +6232,7 @@ strtod();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6217: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6236: \"$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
@@ -6235,7 +6254,7 @@ fi
 
     if test "$tcl_strtod" = 1; then
 	echo $ac_n "checking for Solaris2.4/Tru64 strtod bugs""... $ac_c" 1>&6
-echo "configure:6239: checking for Solaris2.4/Tru64 strtod bugs" >&5
+echo "configure:6258: checking for Solaris2.4/Tru64 strtod bugs" >&5
 	if eval "test \"`echo '$''{'tcl_cv_strtod_buggy'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6244,7 +6263,7 @@ else
   tcl_cv_strtod_buggy=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 6248 "configure"
+#line 6267 "configure"
 #include "confdefs.h"
 
 		extern double strtod();
@@ -6267,7 +6286,7 @@ else
 		    exit(0);
 		}
 EOF
-if { (eval echo configure:6271: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6290: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_strtod_buggy=1
 else
@@ -6300,12 +6319,12 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:6304: checking for ANSI C header files" >&5
+echo "configure:6323: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6309 "configure"
+#line 6328 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -6313,7 +6332,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6317: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6336: \"$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*
@@ -6330,7 +6349,7 @@ 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 6334 "configure"
+#line 6353 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -6348,7 +6367,7 @@ 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 6352 "configure"
+#line 6371 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -6369,7 +6388,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 6373 "configure"
+#line 6392 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -6380,7 +6399,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:6384: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6403: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -6404,12 +6423,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:6408: checking for mode_t" >&5
+echo "configure:6427: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6413 "configure"
+#line 6432 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -6437,12 +6456,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:6441: checking for pid_t" >&5
+echo "configure:6460: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6446 "configure"
+#line 6465 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -6470,12 +6489,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:6474: checking for size_t" >&5
+echo "configure:6493: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6479 "configure"
+#line 6498 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -6503,12 +6522,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:6507: checking for uid_t in sys/types.h" >&5
+echo "configure:6526: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6512 "configure"
+#line 6531 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -6538,12 +6557,12 @@ fi
 
 
 echo $ac_n "checking for socklen_t""... $ac_c" 1>&6
-echo "configure:6542: checking for socklen_t" >&5
+echo "configure:6561: checking for socklen_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_socklen_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6547 "configure"
+#line 6566 "configure"
 #include "confdefs.h"
 
     #include <sys/types.h>
@@ -6582,12 +6601,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for opendir""... $ac_c" 1>&6
-echo "configure:6586: checking for opendir" >&5
+echo "configure:6605: checking for opendir" >&5
 if eval "test \"`echo '$''{'ac_cv_func_opendir'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6591 "configure"
+#line 6610 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char opendir(); below.  */
@@ -6610,7 +6629,7 @@ opendir();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6614: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6633: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_opendir=yes"
 else
@@ -6643,12 +6662,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking union wait""... $ac_c" 1>&6
-echo "configure:6647: checking union wait" >&5
+echo "configure:6666: checking union wait" >&5
 if eval "test \"`echo '$''{'tcl_cv_union_wait'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6652 "configure"
+#line 6671 "configure"
 #include "confdefs.h"
 #include <sys/types.h> 
 #include <sys/wait.h>
@@ -6660,7 +6679,7 @@ WIFEXITED(x);		/* Generates compiler error if WIFEXITED
     
 ; return 0; }
 EOF
-if { (eval echo configure:6664: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_union_wait=yes
 else
@@ -6687,12 +6706,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for strncasecmp""... $ac_c" 1>&6
-echo "configure:6691: checking for strncasecmp" >&5
+echo "configure:6710: checking for strncasecmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strncasecmp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6696 "configure"
+#line 6715 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strncasecmp(); below.  */
@@ -6715,7 +6734,7 @@ strncasecmp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6719: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6738: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strncasecmp=yes"
 else
@@ -6737,7 +6756,7 @@ fi
 
 if test "$tcl_ok" = 0; then
     echo $ac_n "checking for strncasecmp in -lsocket""... $ac_c" 1>&6
-echo "configure:6741: checking for strncasecmp in -lsocket" >&5
+echo "configure:6760: checking for strncasecmp in -lsocket" >&5
 ac_lib_var=`echo socket'_'strncasecmp | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6745,7 +6764,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6749 "configure"
+#line 6768 "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
@@ -6756,7 +6775,7 @@ int main() {
 strncasecmp()
 ; return 0; }
 EOF
-if { (eval echo configure:6760: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6779: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6780,7 +6799,7 @@ fi
 fi
 if test "$tcl_ok" = 0; then
     echo $ac_n "checking for strncasecmp in -linet""... $ac_c" 1>&6
-echo "configure:6784: checking for strncasecmp in -linet" >&5
+echo "configure:6803: checking for strncasecmp in -linet" >&5
 ac_lib_var=`echo inet'_'strncasecmp | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6788,7 +6807,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-linet  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6792 "configure"
+#line 6811 "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
@@ -6799,7 +6818,7 @@ int main() {
 strncasecmp()
 ; return 0; }
 EOF
-if { (eval echo configure:6803: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6822: \"$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
@@ -6837,12 +6856,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for BSDgettimeofday""... $ac_c" 1>&6
-echo "configure:6841: checking for BSDgettimeofday" >&5
+echo "configure:6860: checking for BSDgettimeofday" >&5
 if eval "test \"`echo '$''{'ac_cv_func_BSDgettimeofday'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6846 "configure"
+#line 6865 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char BSDgettimeofday(); below.  */
@@ -6865,7 +6884,7 @@ BSDgettimeofday();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6869: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6888: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_BSDgettimeofday=yes"
 else
@@ -6887,12 +6906,12 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for gettimeofday""... $ac_c" 1>&6
-echo "configure:6891: checking for gettimeofday" >&5
+echo "configure:6910: checking for gettimeofday" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gettimeofday'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6896 "configure"
+#line 6915 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gettimeofday(); below.  */
@@ -6915,7 +6934,7 @@ gettimeofday();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6919: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6938: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gettimeofday=yes"
 else
@@ -6942,12 +6961,12 @@ fi
 fi
 
 echo $ac_n "checking for gettimeofday declaration""... $ac_c" 1>&6
-echo "configure:6946: checking for gettimeofday declaration" >&5
+echo "configure:6965: checking for gettimeofday declaration" >&5
 if eval "test \"`echo '$''{'tcl_cv_grep_gettimeofday'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6951 "configure"
+#line 6970 "configure"
 #include "confdefs.h"
 #include <sys/time.h>
 EOF
@@ -6978,14 +6997,14 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether char is unsigned""... $ac_c" 1>&6
-echo "configure:6982: checking whether char is unsigned" >&5
+echo "configure:7001: checking whether char is unsigned" >&5
 if eval "test \"`echo '$''{'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.$ac_ext <<EOF
-#line 6989 "configure"
+#line 7008 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -7007,7 +7026,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 7011 "configure"
+#line 7030 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -7017,7 +7036,7 @@ main() {
   volatile char c = 255; exit(c < 0);
 }
 EOF
-if { (eval echo configure:7021: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7040: \"$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
@@ -7041,12 +7060,12 @@ EOF
 fi
 
 echo $ac_n "checking signed char declarations""... $ac_c" 1>&6
-echo "configure:7045: checking signed char declarations" >&5
+echo "configure:7064: checking signed char declarations" >&5
 if eval "test \"`echo '$''{'tcl_cv_char_signed'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7050 "configure"
+#line 7069 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -7056,7 +7075,7 @@ int main() {
 	
 ; return 0; }
 EOF
-if { (eval echo configure:7060: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7079: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_char_signed=yes
 else
@@ -7081,7 +7100,7 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for a putenv() that copies the buffer""... $ac_c" 1>&6
-echo "configure:7085: checking for a putenv() that copies the buffer" >&5
+echo "configure:7104: checking for a putenv() that copies the buffer" >&5
 if eval "test \"`echo '$''{'tcl_cv_putenv_copy'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7089,7 +7108,7 @@ else
   tcl_cv_putenv_copy=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 7093 "configure"
+#line 7112 "configure"
 #include "confdefs.h"
 
 	#include <stdlib.h>
@@ -7111,7 +7130,7 @@ else
 	}
     
 EOF
-if { (eval echo configure:7115: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7134: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_putenv_copy=no
 else
@@ -7153,17 +7172,17 @@ fi
 	if test "$langinfo_ok" = "yes"; then
 	    ac_safe=`echo "langinfo.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for langinfo.h""... $ac_c" 1>&6
-echo "configure:7157: checking for langinfo.h" >&5
+echo "configure:7176: checking for langinfo.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7162 "configure"
+#line 7181 "configure"
 #include "confdefs.h"
 #include <langinfo.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7167: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7186: \"$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*
@@ -7188,17 +7207,17 @@ fi
 	fi
     fi
     echo $ac_n "checking whether to use nl_langinfo""... $ac_c" 1>&6
-echo "configure:7192: checking whether to use nl_langinfo" >&5
+echo "configure:7211: checking whether to use nl_langinfo" >&5
     if test "$langinfo_ok" = "yes"; then
 	cat > conftest.$ac_ext <<EOF
-#line 7195 "configure"
+#line 7214 "configure"
 #include "confdefs.h"
 #include <langinfo.h>
 int main() {
 nl_langinfo(CODESET);
 ; return 0; }
 EOF
-if { (eval echo configure:7202: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7221: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   langinfo_ok=yes
 else
@@ -7233,17 +7252,17 @@ EOF
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:7237: checking for $ac_hdr" >&5
+echo "configure:7256: 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 7242 "configure"
+#line 7261 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7247: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7266: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7273,17 +7292,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:7277: checking for $ac_hdr" >&5
+echo "configure:7296: 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 7282 "configure"
+#line 7301 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7287: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7306: \"$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*
@@ -7310,7 +7329,7 @@ fi
 done
 
     echo $ac_n "checking FIONBIO vs. O_NONBLOCK for nonblocking I/O""... $ac_c" 1>&6
-echo "configure:7314: checking FIONBIO vs. O_NONBLOCK for nonblocking I/O" >&5
+echo "configure:7333: checking FIONBIO vs. O_NONBLOCK for nonblocking I/O" >&5
     if test -f /usr/lib/NextStep/software_version; then
 	system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
     else
@@ -7373,7 +7392,7 @@ eval "TCL_LIB_FILE=libtcl${LIB_SUFFIX}"
 
 
     echo $ac_n "checking how to package libraries""... $ac_c" 1>&6
-echo "configure:7377: checking how to package libraries" >&5
+echo "configure:7396: checking how to package libraries" >&5
     # Check whether --enable-framework or --disable-framework was given.
 if test "${enable_framework+set}" = set; then
   enableval="$enable_framework"