[Bug 3388350] mingw64 compiler warnings

2 files changed, 505 insertions, 434 deletions

diff --git a/unix/configure b/unix/configure
index ce35ea7..d99cf32 100755
--- a/unix/configure
+++ b/unix/configure
@@ -590,8 +590,15 @@ else
 
 	    # First check to see if --with-tcl was specified.
 	    if test x"${with_tclconfig}" != x ; then
+		case "${with_tclconfig}" in
+		    */tclConfig.sh )
+			if test -f "${with_tclconfig}"; then
+			    echo "configure: warning: --with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself" 1>&2
+			    with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
+			fi ;;
+		esac
 		if test -f "${with_tclconfig}/tclConfig.sh" ; then
-		    ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
+		    ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
 		else
 		    { echo "configure: error: ${with_tclconfig} directory doesn't contain tclConfig.sh" 1>&2; exit 1; }
 		fi
@@ -613,7 +620,7 @@ else
 			`ls -dr ../../../tcl[8-9].[0-9] 2>/dev/null` \
 			`ls -dr ../../../tcl[8-9].[0-9]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tclConfig.sh" ; then
-			ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
 			break
 		    fi
 		done
@@ -627,7 +634,7 @@ else
 			`ls -d /System/Library/Frameworks 2>/dev/null` \
 			; do
 		    if test -f "$i/Tcl.framework/tclConfig.sh" ; then
-			ac_cv_c_tclconfig=`(cd $i/Tcl.framework; pwd)`
+			ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
 			break
 		    fi
 		done
@@ -641,9 +648,10 @@ else
 			`ls -d /usr/local/lib 2>/dev/null` \
 			`ls -d /usr/contrib/lib 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
 			; do
 		    if test -f "$i/tclConfig.sh" ; then
-			ac_cv_c_tclconfig=`(cd $i; pwd)`
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
 			break
 		    fi
 		done
@@ -657,7 +665,7 @@ else
 			`ls -dr ${srcdir}/../tcl[8-9].[0-9] 2>/dev/null` \
 			`ls -dr ${srcdir}/../tcl[8-9].[0-9]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tclConfig.sh" ; then
-		    ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
 		    break
 		fi
 		done
@@ -668,22 +676,21 @@ fi
 
 	if test x"${ac_cv_c_tclconfig}" = x ; then
 	    TCL_BIN_DIR="# no Tcl configs found"
-	    echo "configure: warning: Can't find Tcl configuration definitions" 1>&2
-	    exit 0
+	    { echo "configure: error: Can't find Tcl configuration definitions. Use --with-tcl to specify a directory containing tclConfig.sh" 1>&2; exit 1; }
 	else
 	    no_tcl=
-	    TCL_BIN_DIR=${ac_cv_c_tclconfig}
+	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
 	    echo "$ac_t""found ${TCL_BIN_DIR}/tclConfig.sh" 1>&6
 	fi
     fi
 
 
     echo $ac_n "checking for existence of ${TCL_BIN_DIR}/tclConfig.sh""... $ac_c" 1>&6
-echo "configure:683: checking for existence of ${TCL_BIN_DIR}/tclConfig.sh" >&5
+echo "configure:690: checking for existence of ${TCL_BIN_DIR}/tclConfig.sh" >&5
 
     if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
         echo "$ac_t""loading" 1>&6
-	. ${TCL_BIN_DIR}/tclConfig.sh
+	. "${TCL_BIN_DIR}/tclConfig.sh"
     else
         echo "$ac_t""could not find ${TCL_BIN_DIR}/tclConfig.sh" 1>&6
     fi
@@ -698,27 +705,27 @@ echo "configure:683: checking for existence of ${TCL_BIN_DIR}/tclConfig.sh" >&5
     # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
     # instead of TCL_BUILD_LIB_SPEC since it will work with both an
     # installed and uninstalled version of Tcl.
-    if test -f ${TCL_BIN_DIR}/Makefile ; then
-        TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
-        TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
-        TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
+    if test -f "${TCL_BIN_DIR}/Makefile" ; then
+        TCL_LIB_SPEC="${TCL_BUILD_LIB_SPEC}"
+        TCL_STUB_LIB_SPEC="${TCL_BUILD_STUB_LIB_SPEC}"
+        TCL_STUB_LIB_PATH="${TCL_BUILD_STUB_LIB_PATH}"
     elif test "`uname -s`" = "Darwin"; then
 	# If Tcl was built as a framework, attempt to use the libraries
 	# from the framework at the given location so that linking works
-	# against Tcl.framework installed in an arbitary location.
+	# against Tcl.framework installed in an arbitrary location.
 	case ${TCL_DEFS} in
 	    *TCL_FRAMEWORK*)
-		if test -f ${TCL_BIN_DIR}/${TCL_LIB_FILE}; then
-		    for i in "`cd ${TCL_BIN_DIR}; pwd`" \
-			     "`cd ${TCL_BIN_DIR}/../..; pwd`"; do
+		if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
+		    for i in "`cd "${TCL_BIN_DIR}"; pwd`" \
+			     "`cd "${TCL_BIN_DIR}"/../..; pwd`"; do
 			if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
-			    TCL_LIB_SPEC="-F`dirname "$i"` -framework ${TCL_LIB_FILE}"
+			    TCL_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TCL_LIB_FILE}"
 			    break
 			fi
 		    done
 		fi
-		if test -f ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}; then
-		    TCL_STUB_LIB_SPEC="-L${TCL_BIN_DIR} ${TCL_STUB_LIB_FLAG}"
+		if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
+		    TCL_STUB_LIB_SPEC="-L`echo "${TCL_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TCL_STUB_LIB_FLAG}"
 		    TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
 		fi
 		;;
@@ -747,7 +754,7 @@ echo "configure:683: checking for existence of ${TCL_BIN_DIR}/tclConfig.sh" >&5
 
 
     echo $ac_n "checking for tclsh""... $ac_c" 1>&6
-echo "configure:751: checking for tclsh" >&5
+echo "configure:758: checking for tclsh" >&5
     if eval "test \"`echo '$''{'ac_cv_path_tclsh'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -780,8 +787,8 @@ fi
 
 
     echo $ac_n "checking for tclsh in Tcl build directory""... $ac_c" 1>&6
-echo "configure:784: checking for tclsh in Tcl build directory" >&5
-    BUILD_TCLSH=${TCL_BIN_DIR}/tclsh
+echo "configure:791: checking for tclsh in Tcl build directory" >&5
+    BUILD_TCLSH="${TCL_BIN_DIR}"/tclsh
     echo "$ac_t""$BUILD_TCLSH" 1>&6
     
 
@@ -812,7 +819,7 @@ TK_SRC_DIR=`cd $srcdir/..; pwd`
 
 
     echo $ac_n "checking whether to use symlinks for manpages""... $ac_c" 1>&6
-echo "configure:816: checking whether to use symlinks for manpages" >&5
+echo "configure:823: checking whether to use symlinks for manpages" >&5
     # Check whether --enable-man-symlinks or --disable-man-symlinks was given.
 if test "${enable_man_symlinks+set}" = set; then
   enableval="$enable_man_symlinks"
@@ -824,7 +831,7 @@ fi
     echo "$ac_t""$enableval" 1>&6
 
     echo $ac_n "checking whether to compress the manpages""... $ac_c" 1>&6
-echo "configure:828: checking whether to compress the manpages" >&5
+echo "configure:835: checking whether to compress the manpages" >&5
     # Check whether --enable-man-compression or --disable-man-compression was given.
 if test "${enable_man_compression+set}" = set; then
   enableval="$enable_man_compression"
@@ -840,7 +847,7 @@ fi
     echo "$ac_t""$enableval" 1>&6
     if test "$enableval" != "no"; then
 	echo $ac_n "checking for compressed file suffix""... $ac_c" 1>&6
-echo "configure:844: checking for compressed file suffix" >&5
+echo "configure:851: checking for compressed file suffix" >&5
 	touch TeST
 	$enableval TeST
 	Z=`ls TeST* | sed 's/^....//'`
@@ -850,7 +857,7 @@ echo "configure:844: checking for compressed file suffix" >&5
     fi
 
     echo $ac_n "checking whether to add a package name suffix for the manpages""... $ac_c" 1>&6
-echo "configure:854: checking whether to add a package name suffix for the manpages" >&5
+echo "configure:861: checking whether to add a package name suffix for the manpages" >&5
     # Check whether --enable-man-suffix or --disable-man-suffix was given.
 if test "${enable_man_suffix+set}" = set; then
   enableval="$enable_man_suffix"
@@ -881,7 +888,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:885: checking for $ac_word" >&5
+echo "configure:892: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -911,7 +918,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:915: checking for $ac_word" >&5
+echo "configure:922: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -962,7 +969,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:966: checking for $ac_word" >&5
+echo "configure:973: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -994,7 +1001,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:998: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:1005: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1005,12 +1012,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 1009 "configure"
+#line 1016 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:1014: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1021: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1036,12 +1043,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1040: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1047: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1045: checking whether we are using GNU C" >&5
+echo "configure:1052: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1050,7 +1057,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1054: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1061: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1069,7 +1076,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1073: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1080: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1104,7 +1111,7 @@ fi
 # limits header checks must come early to prevent
 # an autoconf bug that throws errors on configure
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1108: checking how to run the C preprocessor" >&5
+echo "configure:1115: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1119,13 +1126,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1123 "configure"
+#line 1130 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1129: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1136: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1136,13 +1143,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1140 "configure"
+#line 1147 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1146: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1153: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1153,13 +1160,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1157 "configure"
+#line 1164 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1163: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1170: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1185,17 +1192,17 @@ echo "$ac_t""$CPP" 1>&6
 
 ac_safe=`echo "limits.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for limits.h""... $ac_c" 1>&6
-echo "configure:1189: checking for limits.h" >&5
+echo "configure:1196: checking for limits.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1194 "configure"
+#line 1201 "configure"
 #include "confdefs.h"
 #include <limits.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1199: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1206: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1227,17 +1234,17 @@ for ac_hdr in unistd.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1231: checking for $ac_hdr" >&5
+echo "configure:1238: 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 1236 "configure"
+#line 1243 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1241: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1248: \"$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*
@@ -1270,9 +1277,9 @@ done
 #--------------------------------------------------------------------
 
 echo $ac_n "checking stdlib.h""... $ac_c" 1>&6
-echo "configure:1274: checking stdlib.h" >&5
+echo "configure:1281: checking stdlib.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 1276 "configure"
+#line 1283 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1287,7 +1294,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 1291 "configure"
+#line 1298 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1301,7 +1308,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 1305 "configure"
+#line 1312 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1329,21 +1336,21 @@ echo "$ac_t""$tk_ok" 1>&6
 
 if test -z "$no_pipe" && test -n "$GCC"; then
     echo $ac_n "checking if the compiler understands -pipe""... $ac_c" 1>&6
-echo "configure:1333: checking if the compiler understands -pipe" >&5
+echo "configure:1340: checking if the compiler understands -pipe" >&5
 if eval "test \"`echo '$''{'tcl_cv_cc_pipe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -pipe"
 	cat > conftest.$ac_ext <<EOF
-#line 1340 "configure"
+#line 1347 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1347: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1354: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_cc_pipe=yes
 else
@@ -1403,7 +1410,7 @@ EOF
 EOF
 
 	echo $ac_n "checking for pthread_mutex_init in -lpthread""... $ac_c" 1>&6
-echo "configure:1407: checking for pthread_mutex_init in -lpthread" >&5
+echo "configure:1414: checking for pthread_mutex_init in -lpthread" >&5
 ac_lib_var=`echo pthread'_'pthread_mutex_init | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1411,7 +1418,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1415 "configure"
+#line 1422 "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
@@ -1422,7 +1429,7 @@ int main() {
 pthread_mutex_init()
 ; return 0; }
 EOF
-if { (eval echo configure:1426: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1433: \"$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
@@ -1450,7 +1457,7 @@ fi
 	    # pthread.h, but that will work with libpthread really doesn't
 	    # exist, like AIX 4.2.  [Bug: 4359]
 	    echo $ac_n "checking for __pthread_mutex_init in -lpthread""... $ac_c" 1>&6
-echo "configure:1454: checking for __pthread_mutex_init in -lpthread" >&5
+echo "configure:1461: checking for __pthread_mutex_init in -lpthread" >&5
 ac_lib_var=`echo pthread'_'__pthread_mutex_init | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1458,7 +1465,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1462 "configure"
+#line 1469 "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
@@ -1469,7 +1476,7 @@ int main() {
 __pthread_mutex_init()
 ; return 0; }
 EOF
-if { (eval echo configure:1473: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1480: \"$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
@@ -1497,7 +1504,7 @@ fi
 	    THREADS_LIBS=" -lpthread"
 	else
 	    echo $ac_n "checking for pthread_mutex_init in -lpthreads""... $ac_c" 1>&6
-echo "configure:1501: checking for pthread_mutex_init in -lpthreads" >&5
+echo "configure:1508: checking for pthread_mutex_init in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_mutex_init | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1505,7 +1512,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1509 "configure"
+#line 1516 "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
@@ -1516,7 +1523,7 @@ int main() {
 pthread_mutex_init()
 ; return 0; }
 EOF
-if { (eval echo configure:1520: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1527: \"$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
@@ -1542,7 +1549,7 @@ fi
 		THREADS_LIBS=" -lpthreads"
 	    else
 		echo $ac_n "checking for pthread_mutex_init in -lc""... $ac_c" 1>&6
-echo "configure:1546: checking for pthread_mutex_init in -lc" >&5
+echo "configure:1553: checking for pthread_mutex_init in -lc" >&5
 ac_lib_var=`echo c'_'pthread_mutex_init | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1550,7 +1557,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1554 "configure"
+#line 1561 "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
@@ -1561,7 +1568,7 @@ int main() {
 pthread_mutex_init()
 ; return 0; }
 EOF
-if { (eval echo configure:1565: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1572: \"$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
@@ -1584,7 +1591,7 @@ fi
 
 		if test "$tcl_ok" = "no"; then
 		    echo $ac_n "checking for pthread_mutex_init in -lc_r""... $ac_c" 1>&6
-echo "configure:1588: checking for pthread_mutex_init in -lc_r" >&5
+echo "configure:1595: checking for pthread_mutex_init in -lc_r" >&5
 ac_lib_var=`echo c_r'_'pthread_mutex_init | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1592,7 +1599,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1596 "configure"
+#line 1603 "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
@@ -1603,7 +1610,7 @@ int main() {
 pthread_mutex_init()
 ; return 0; }
 EOF
-if { (eval echo configure:1607: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1614: \"$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
@@ -1643,12 +1650,12 @@ fi
 	for ac_func in pthread_attr_setstacksize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1647: checking for $ac_func" >&5
+echo "configure:1654: 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 1652 "configure"
+#line 1659 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1671,7 +1678,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1675: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1682: \"$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
@@ -1698,12 +1705,12 @@ done
 	for ac_func in pthread_atfork
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1702: checking for $ac_func" >&5
+echo "configure:1709: 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 1707 "configure"
+#line 1714 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1726,7 +1733,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1730: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1737: \"$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
@@ -1756,7 +1763,7 @@ done
     fi
     # Do checking message here to not mess up interleaved configure output
     echo $ac_n "checking for building with threads""... $ac_c" 1>&6
-echo "configure:1760: checking for building with threads" >&5
+echo "configure:1767: checking for building with threads" >&5
     if test "${TCL_THREADS}" = 1; then
 	cat >> confdefs.h <<\EOF
 #define TCL_THREADS 1
@@ -1768,7 +1775,7 @@ EOF
 	    echo "$ac_t""yes" 1>&6
 	fi
     else
-	echo "$ac_t""no (default)" 1>&6
+	echo "$ac_t""no" 1>&6
     fi
 
     
@@ -1783,12 +1790,12 @@ EOF
 
 MATH_LIBS=""
 echo $ac_n "checking for sin""... $ac_c" 1>&6
-echo "configure:1787: checking for sin" >&5
+echo "configure:1794: checking for sin" >&5
 if eval "test \"`echo '$''{'ac_cv_func_sin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1792 "configure"
+#line 1799 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sin(); below.  */
@@ -1811,7 +1818,7 @@ sin();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1822: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_sin=yes"
 else
@@ -1832,7 +1839,7 @@ MATH_LIBS="-lm"
 fi
 
 echo $ac_n "checking for main in -lieee""... $ac_c" 1>&6
-echo "configure:1836: checking for main in -lieee" >&5
+echo "configure:1843: checking for main in -lieee" >&5
 ac_lib_var=`echo ieee'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1840,14 +1847,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1844 "configure"
+#line 1851 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:1851: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1858: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1873,7 +1880,7 @@ LIBS="$LIBS$THREADS_LIBS"
 
 
     echo $ac_n "checking how to build libraries""... $ac_c" 1>&6
-echo "configure:1877: checking how to build libraries" >&5
+echo "configure:1884: checking how to build libraries" >&5
     # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
@@ -1912,7 +1919,7 @@ EOF
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1916: checking for $ac_word" >&5
+echo "configure:1923: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1944,7 +1951,7 @@ fi
     # Step 0.a: Enable 64 bit support?
 
     echo $ac_n "checking if 64bit support is requested""... $ac_c" 1>&6
-echo "configure:1948: checking if 64bit support is requested" >&5
+echo "configure:1955: checking if 64bit support is requested" >&5
     # Check whether --enable-64bit or --disable-64bit was given.
 if test "${enable_64bit+set}" = set; then
   enableval="$enable_64bit"
@@ -1958,7 +1965,7 @@ fi
     # Step 0.b: Enable Solaris 64 bit VIS support?
 
     echo $ac_n "checking if 64bit Sparc VIS support is requested""... $ac_c" 1>&6
-echo "configure:1962: checking if 64bit Sparc VIS support is requested" >&5
+echo "configure:1969: checking if 64bit Sparc VIS support is requested" >&5
     # Check whether --enable-64bit-vis or --disable-64bit-vis was given.
 if test "${enable_64bit_vis+set}" = set; then
   enableval="$enable_64bit_vis"
@@ -1979,7 +1986,7 @@ fi
 
     
     echo $ac_n "checking system version""... $ac_c" 1>&6
-echo "configure:1983: checking system version" >&5
+echo "configure:1990: checking system version" >&5
 if eval "test \"`echo '$''{'tcl_cv_sys_version'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2014,7 +2021,7 @@ echo "$ac_t""$tcl_cv_sys_version" 1>&6
     # Linux can use either -ldl or -ldld for dynamic loading.
 
     echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:2018: checking for dlopen in -ldl" >&5
+echo "configure:2025: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2022,7 +2029,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2026 "configure"
+#line 2033 "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
@@ -2033,7 +2040,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:2037: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2044: \"$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
@@ -2081,7 +2088,7 @@ fi
     # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2085: checking for $ac_word" >&5
+echo "configure:2092: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2143,7 +2150,7 @@ fi
 	    if test "$do64bit" = "yes" -a "`uname -v`" -gt "3" ; then
 		if test "$GCC" = "yes" ; then
 		    echo "configure: warning: 64bit mode not supported with GCC on $system" 1>&2
-		else 
+		else
 		    do64bit_ok=yes
 		    CFLAGS="$CFLAGS -q64"
 		    LDFLAGS="$LDFLAGS -q64"
@@ -2197,7 +2204,7 @@ fi
 	    # known GMT value.
 
 	    echo $ac_n "checking for gettimeofday in -lbsd""... $ac_c" 1>&6
-echo "configure:2201: checking for gettimeofday in -lbsd" >&5
+echo "configure:2208: checking for gettimeofday in -lbsd" >&5
 ac_lib_var=`echo bsd'_'gettimeofday | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2205,7 +2212,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2209 "configure"
+#line 2216 "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
@@ -2216,7 +2223,7 @@ int main() {
 gettimeofday()
 ; return 0; }
 EOF
-if { (eval echo configure:2220: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2227: \"$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
@@ -2259,7 +2266,7 @@ EOF
 	    # is always linked to, for compatibility.
 	    #-----------------------------------------------------------
 	    echo $ac_n "checking for inet_ntoa in -lbind""... $ac_c" 1>&6
-echo "configure:2263: checking for inet_ntoa in -lbind" >&5
+echo "configure:2270: checking for inet_ntoa in -lbind" >&5
 ac_lib_var=`echo bind'_'inet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2267,7 +2274,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbind  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2271 "configure"
+#line 2278 "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
@@ -2278,7 +2285,7 @@ int main() {
 inet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:2282: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2289: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2311,7 +2318,7 @@ fi
 	    ;;
 	BSD/OS-4.*)
 	    SHLIB_CFLAGS="-export-dynamic -fPIC"
-	    SHLIB_LD="cc -shared"
+	    SHLIB_LD='${CC} -shared'
 	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
@@ -2320,9 +2327,19 @@ fi
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
+	CYGWIN_*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD='${CC} -shared'
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".dll"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
 	dgux*)
 	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD="cc -G"
+	    SHLIB_LD='${CC} -G'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
@@ -2348,7 +2365,7 @@ EOF
 		SHLIB_SUFFIX=".sl"
 	    fi
 	    echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
-echo "configure:2352: checking for shl_load in -ldld" >&5
+echo "configure:2369: checking for shl_load in -ldld" >&5
 ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2356,7 +2373,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2360 "configure"
+#line 2377 "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
@@ -2367,7 +2384,7 @@ int main() {
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:2371: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2388: \"$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
@@ -2435,7 +2452,7 @@ fi
 	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
 	    SHLIB_SUFFIX=".sl"
 	    echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
-echo "configure:2439: checking for shl_load in -ldld" >&5
+echo "configure:2456: checking for shl_load in -ldld" >&5
 ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2443,7 +2460,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2447 "configure"
+#line 2464 "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
@@ -2454,7 +2471,7 @@ int main() {
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:2458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2475: \"$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
@@ -2563,7 +2580,7 @@ fi
 	    SHLIB_SUFFIX=".so"
 
 	    CFLAGS_OPTIMIZE=-O2
-	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings 
+	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
 	    # when you inline the string and math operations.  Turn this off to
 	    # get rid of the warnings.
 	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
@@ -2578,17 +2595,17 @@ fi
 	    else
 		ac_safe=`echo "dld.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dld.h""... $ac_c" 1>&6
-echo "configure:2582: checking for dld.h" >&5
+echo "configure:2599: checking for dld.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2587 "configure"
+#line 2604 "configure"
 #include "confdefs.h"
 #include <dld.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2592: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2609: \"$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*
@@ -2620,7 +2637,7 @@ fi
 	    fi
 	    if test $do64bit = yes; then
 		echo $ac_n "checking if compiler accepts -m64 flag""... $ac_c" 1>&6
-echo "configure:2624: checking if compiler accepts -m64 flag" >&5
+echo "configure:2641: checking if compiler accepts -m64 flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_cc_m64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2628,14 +2645,14 @@ else
 		    hold_cflags=$CFLAGS
 		    CFLAGS="$CFLAGS -m64"
 		    cat > conftest.$ac_ext <<EOF
-#line 2632 "configure"
+#line 2649 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:2639: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2656: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_cc_m64=yes
 else
@@ -2688,17 +2705,17 @@ EOF
 	    else
 		ac_safe=`echo "dld.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for dld.h""... $ac_c" 1>&6
-echo "configure:2692: checking for dld.h" >&5
+echo "configure:2709: checking for dld.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2697 "configure"
+#line 2714 "configure"
 #include "confdefs.h"
 #include <dld.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2702: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2719: \"$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*
@@ -2766,17 +2783,17 @@ 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""... $ac_c" 1>&6
-echo "configure:2770: checking for dlfcn.h" >&5
+echo "configure:2787: checking for dlfcn.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2775 "configure"
+#line 2792 "configure"
 #include "confdefs.h"
 #include <dlfcn.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2780: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2797: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2803,13 +2820,13 @@ if eval "test \"`echo '$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""... $ac_c" 1>&6
-echo "configure:2807: checking for ELF" >&5
+echo "configure:2824: checking for ELF" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_elf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		    cat > conftest.$ac_ext <<EOF
-#line 2813 "configure"
+#line 2830 "configure"
 #include "confdefs.h"
 
 #ifdef __ELF__
@@ -2888,13 +2905,13 @@ fi
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
 		echo $ac_n "checking for ELF""... $ac_c" 1>&6
-echo "configure:2892: checking for ELF" >&5
+echo "configure:2909: checking for ELF" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_elf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		    cat > conftest.$ac_ext <<EOF
-#line 2898 "configure"
+#line 2915 "configure"
 #include "confdefs.h"
 
 #ifdef __ELF__
@@ -2969,7 +2986,7 @@ echo "$ac_t""$tcl_cv_ld_elf" 1>&6
 		case `arch` in
 		    ppc)
 			echo $ac_n "checking if compiler accepts -arch ppc64 flag""... $ac_c" 1>&6
-echo "configure:2973: checking if compiler accepts -arch ppc64 flag" >&5
+echo "configure:2990: checking if compiler accepts -arch ppc64 flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_cc_arch_ppc64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2977,14 +2994,14 @@ else
 			    hold_cflags=$CFLAGS
 			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
 			    cat > conftest.$ac_ext <<EOF
-#line 2981 "configure"
+#line 2998 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; 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:3005: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_cc_arch_ppc64=yes
 else
@@ -3004,7 +3021,7 @@ echo "$ac_t""$tcl_cv_cc_arch_ppc64" 1>&6
 			fi;;
 		    i386)
 			echo $ac_n "checking if compiler accepts -arch x86_64 flag""... $ac_c" 1>&6
-echo "configure:3008: checking if compiler accepts -arch x86_64 flag" >&5
+echo "configure:3025: checking if compiler accepts -arch x86_64 flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_cc_arch_x86_64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3012,14 +3029,14 @@ else
 			    hold_cflags=$CFLAGS
 			    CFLAGS="$CFLAGS -arch x86_64"
 			    cat > conftest.$ac_ext <<EOF
-#line 3016 "configure"
+#line 3033 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:3023: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3040: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_cc_arch_x86_64=yes
 else
@@ -3048,7 +3065,7 @@ echo "$ac_t""$tcl_cv_cc_arch_x86_64" 1>&6
 	    fi
 	    SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
 	    echo $ac_n "checking if ld accepts -single_module flag""... $ac_c" 1>&6
-echo "configure:3052: checking if ld accepts -single_module flag" >&5
+echo "configure:3069: checking if ld accepts -single_module flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_single_module'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3056,14 +3073,14 @@ else
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
 		cat > conftest.$ac_ext <<EOF
-#line 3060 "configure"
+#line 3077 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:3067: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3084: \"$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
@@ -3090,7 +3107,7 @@ 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""... $ac_c" 1>&6
-echo "configure:3094: checking if ld accepts -search_paths_first flag" >&5
+echo "configure:3111: checking if ld accepts -search_paths_first flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_search_paths_first'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3098,14 +3115,14 @@ else
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
 		cat > conftest.$ac_ext <<EOF
-#line 3102 "configure"
+#line 3119 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:3109: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3126: \"$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
@@ -3128,7 +3145,7 @@ 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""... $ac_c" 1>&6
-echo "configure:3132: checking whether to use CoreFoundation" >&5
+echo "configure:3149: checking whether to use CoreFoundation" >&5
 	    # Check whether --enable-corefoundation or --disable-corefoundation was given.
 if test "${enable_corefoundation+set}" = set; then
   enableval="$enable_corefoundation"
@@ -3140,7 +3157,7 @@ fi
 	    echo "$ac_t""$tcl_corefoundation" 1>&6
 	    if test $tcl_corefoundation = yes; then
 		echo $ac_n "checking for CoreFoundation.framework""... $ac_c" 1>&6
-echo "configure:3144: checking for CoreFoundation.framework" >&5
+echo "configure:3161: checking for CoreFoundation.framework" >&5
 if eval "test \"`echo '$''{'tcl_cv_lib_corefoundation'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3154,14 +3171,14 @@ else
 		    done; fi
 		    LIBS="$LIBS -framework CoreFoundation"
 		    cat > conftest.$ac_ext <<EOF
-#line 3158 "configure"
+#line 3175 "configure"
 #include "confdefs.h"
 #include <CoreFoundation/CoreFoundation.h>
 int main() {
 CFBundleRef b = CFBundleGetMainBundle();
 ; return 0; }
 EOF
-if { (eval echo configure:3165: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3182: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_lib_corefoundation=yes
 else
@@ -3188,7 +3205,7 @@ EOF
 		fi
 		if test "$fat_32_64" = yes -a $tcl_corefoundation = yes; then
 		    echo $ac_n "checking for 64-bit CoreFoundation""... $ac_c" 1>&6
-echo "configure:3192: checking for 64-bit CoreFoundation" >&5
+echo "configure:3209: checking for 64-bit CoreFoundation" >&5
 if eval "test \"`echo '$''{'tcl_cv_lib_corefoundation_64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3197,14 +3214,14 @@ else
 			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
 			done
 			cat > conftest.$ac_ext <<EOF
-#line 3201 "configure"
+#line 3218 "configure"
 #include "confdefs.h"
 #include <CoreFoundation/CoreFoundation.h>
 int main() {
 CFBundleRef b = CFBundleGetMainBundle();
 ; return 0; }
 EOF
-if { (eval echo configure:3208: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3225: \"$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
@@ -3235,7 +3252,7 @@ EOF
 	    ;;
 	NEXTSTEP-*)
 	    SHLIB_CFLAGS=""
-	    SHLIB_LD="cc -nostdlib -r"
+	    SHLIB_LD='${CC} -nostdlib -r'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadNext.o"
@@ -3248,8 +3265,8 @@ EOF
 	    cat >> confdefs.h <<\EOF
 #define _OE_SOCKETS 1
 EOF
-	# needed in sys/socket.h
-	    ;;      
+
+	    ;;
 	OSF1-1.0|OSF1-1.1|OSF1-1.2)
 	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
 	    SHLIB_CFLAGS=""
@@ -3285,7 +3302,7 @@ EOF
 	    else
 	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
 	    fi
-	    SHLIB_LD_LIBS=""
+	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -3355,7 +3372,7 @@ EOF
 	    ;;
 	SINIX*5.4*)
 	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD="cc -G"
+	    SHLIB_LD='${CC} -G'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
@@ -3407,7 +3424,7 @@ EOF
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
 	    if test "$GCC" = "yes" ; then
-		SHLIB_LD="$CC -shared"
+		SHLIB_LD='${CC} -shared'
 		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    else
@@ -3541,7 +3558,7 @@ 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""... $ac_c" 1>&6
-echo "configure:3545: checking for ld accepts -Bexport flag" >&5
+echo "configure:3562: checking for ld accepts -Bexport flag" >&5
 if eval "test \"`echo '$''{'tcl_cv_ld_Bexport'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3549,14 +3566,14 @@ else
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-Bexport"
 		cat > conftest.$ac_ext <<EOF
-#line 3553 "configure"
+#line 3570 "configure"
 #include "confdefs.h"
 
 int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:3560: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3577: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_ld_Bexport=yes
 else
@@ -3590,7 +3607,7 @@ echo "$ac_t""$tcl_cv_ld_Bexport" 1>&6
     # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
     # to determine which of several header files defines the a.out file
     # format (a.out.h, sys/exec.h, or sys/exec_aout.h).  At present, we
-    # support only a file format that is more or less version-7-compatible. 
+    # support only a file format that is more or less version-7-compatible.
     # In particular,
     #	- a.out files must begin with `struct exec'.
     #	- the N_TXTOFF on the `struct exec' must compute the seek address
@@ -3606,13 +3623,13 @@ echo "$ac_t""$tcl_cv_ld_Bexport" 1>&6
 
     if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
 	echo $ac_n "checking sys/exec.h""... $ac_c" 1>&6
-echo "configure:3610: checking sys/exec.h" >&5
+echo "configure:3627: checking sys/exec.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_sysexec_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	cat > conftest.$ac_ext <<EOF
-#line 3616 "configure"
+#line 3633 "configure"
 #include "confdefs.h"
 #include <sys/exec.h>
 int main() {
@@ -3630,7 +3647,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:3634: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3651: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_sysexec_h=usable
 else
@@ -3650,13 +3667,13 @@ EOF
 
 	else
 	    echo $ac_n "checking a.out.h""... $ac_c" 1>&6
-echo "configure:3654: checking a.out.h" >&5
+echo "configure:3671: checking a.out.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_aout_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 3660 "configure"
+#line 3677 "configure"
 #include "confdefs.h"
 #include <a.out.h>
 int main() {
@@ -3674,7 +3691,7 @@ int main() {
 	    
 ; return 0; }
 EOF
-if { (eval echo configure:3678: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3695: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_aout_h=usable
 else
@@ -3694,13 +3711,13 @@ EOF
 
 	    else
 		echo $ac_n "checking sys/exec_aout.h""... $ac_c" 1>&6
-echo "configure:3698: checking sys/exec_aout.h" >&5
+echo "configure:3715: checking sys/exec_aout.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_sysexecaout_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 		cat > conftest.$ac_ext <<EOF
-#line 3704 "configure"
+#line 3721 "configure"
 #include "confdefs.h"
 #include <sys/exec_aout.h>
 int main() {
@@ -3718,7 +3735,7 @@ int main() {
 		
 ; return 0; }
 EOF
-if { (eval echo configure:3722: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3739: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_sysexecaout_h=usable
 else
@@ -3871,7 +3888,7 @@ fi
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:3875: checking for build with symbols" >&5
+echo "configure:3892: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -3932,21 +3949,21 @@ TK_DBGX=${DBGX}
 
 
     echo $ac_n "checking for required early compiler flags""... $ac_c" 1>&6
-echo "configure:3936: checking for required early compiler flags" >&5
+echo "configure:3953: 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 3943 "configure"
+#line 3960 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 int main() {
 char *p = (char *)strtoll; char *q = (char *)strtoull;
 ; return 0; }
 EOF
-if { (eval echo configure:3950: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3967: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__isoc99_source=no
 else
@@ -3954,7 +3971,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 3958 "configure"
+#line 3975 "configure"
 #include "confdefs.h"
 #define _ISOC99_SOURCE 1
 #include <stdlib.h>
@@ -3962,7 +3979,7 @@ int main() {
 char *p = (char *)strtoll; char *q = (char *)strtoull;
 ; return 0; }
 EOF
-if { (eval echo configure:3966: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3983: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__isoc99_source=yes
 else
@@ -3989,14 +4006,14 @@ EOF
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3993 "configure"
+#line 4010 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
 struct stat64 buf; int i = stat64("/", &buf);
 ; return 0; }
 EOF
-if { (eval echo configure:4000: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4017: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile64_source=no
 else
@@ -4004,7 +4021,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 4008 "configure"
+#line 4025 "configure"
 #include "confdefs.h"
 #define _LARGEFILE64_SOURCE 1
 #include <sys/stat.h>
@@ -4012,7 +4029,7 @@ int main() {
 struct stat64 buf; int i = stat64("/", &buf);
 ; return 0; }
 EOF
-if { (eval echo configure:4016: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4033: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile64_source=yes
 else
@@ -4039,14 +4056,14 @@ EOF
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4043 "configure"
+#line 4060 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
 char *p = (char *)open64;
 ; return 0; }
 EOF
-if { (eval echo configure:4050: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4067: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile_source64=no
 else
@@ -4054,7 +4071,7 @@ else
   cat conftest.$ac_ext >&5
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 4058 "configure"
+#line 4075 "configure"
 #include "confdefs.h"
 #define _LARGEFILE_SOURCE64 1
 #include <sys/stat.h>
@@ -4062,7 +4079,7 @@ int main() {
 char *p = (char *)open64;
 ; return 0; }
 EOF
-if { (eval echo configure:4066: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4083: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_flag__largefile_source64=yes
 else
@@ -4093,7 +4110,7 @@ EOF
 
 
     echo $ac_n "checking for 64-bit integer type""... $ac_c" 1>&6
-echo "configure:4097: checking for 64-bit integer type" >&5
+echo "configure:4114: checking for 64-bit integer type" >&5
     if eval "test \"`echo '$''{'tcl_cv_type_64bit'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4101,14 +4118,14 @@ else
 	tcl_cv_type_64bit=none
 	# See if the compiler knows natively about __int64
 	cat > conftest.$ac_ext <<EOF
-#line 4105 "configure"
+#line 4122 "configure"
 #include "confdefs.h"
 
 int main() {
 __int64 value = (__int64) 0;
 ; return 0; }
 EOF
-if { (eval echo configure:4112: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4129: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_type_64bit=__int64
 else
@@ -4122,16 +4139,16 @@ rm -f conftest*
 	# type that is our current guess for a 64-bit type inside this check
 	# program, so it should be modified only carefully...
         cat > conftest.$ac_ext <<EOF
-#line 4126 "configure"
+#line 4143 "configure"
 #include "confdefs.h"
 
 int main() {
-switch (0) { 
-            case 1: case (sizeof(${tcl_type_64bit})==sizeof(long)): ; 
+switch (0) {
+            case 1: case (sizeof(${tcl_type_64bit})==sizeof(long)): ;
         }
 ; return 0; }
 EOF
-if { (eval echo configure:4135: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4152: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_64bit=${tcl_type_64bit}
 else
@@ -4156,13 +4173,13 @@ EOF
 
 	# Now check for auxiliary declarations
 	echo $ac_n "checking for struct dirent64""... $ac_c" 1>&6
-echo "configure:4160: checking for struct dirent64" >&5
+echo "configure:4177: checking for struct dirent64" >&5
 if eval "test \"`echo '$''{'tcl_cv_struct_dirent64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 4166 "configure"
+#line 4183 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/dirent.h>
@@ -4170,7 +4187,7 @@ int main() {
 struct dirent64 p;
 ; return 0; }
 EOF
-if { (eval echo configure:4174: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4191: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_struct_dirent64=yes
 else
@@ -4191,13 +4208,13 @@ EOF
 	fi
 
 	echo $ac_n "checking for struct stat64""... $ac_c" 1>&6
-echo "configure:4195: checking for struct stat64" >&5
+echo "configure:4212: checking for struct stat64" >&5
 if eval "test \"`echo '$''{'tcl_cv_struct_stat64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 4201 "configure"
+#line 4218 "configure"
 #include "confdefs.h"
 #include <sys/stat.h>
 int main() {
@@ -4205,7 +4222,7 @@ struct stat64 p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:4209: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4226: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_struct_stat64=yes
 else
@@ -4228,12 +4245,12 @@ EOF
 	for ac_func in open64 lseek64
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4232: checking for $ac_func" >&5
+echo "configure:4249: 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 4254 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4256,7 +4273,7 @@ $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:4277: \"$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
@@ -4281,13 +4298,13 @@ fi
 done
 
 	echo $ac_n "checking for off64_t""... $ac_c" 1>&6
-echo "configure:4285: checking for off64_t" >&5
+echo "configure:4302: checking for off64_t" >&5
 	if eval "test \"`echo '$''{'tcl_cv_type_off64_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	    cat > conftest.$ac_ext <<EOF
-#line 4291 "configure"
+#line 4308 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
@@ -4295,7 +4312,7 @@ off64_t offset;
 
 ; return 0; }
 EOF
-if { (eval echo configure:4299: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4316: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_off64_t=yes
 else
@@ -4326,14 +4343,14 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:4330: checking whether byte ordering is bigendian" >&5
+echo "configure:4347: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'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 4337 "configure"
+#line 4354 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -4344,11 +4361,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:4348: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4365: \"$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 4352 "configure"
+#line 4369 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -4359,7 +4376,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:4363: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4380: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -4379,7 +4396,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 4383 "configure"
+#line 4400 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -4392,7 +4409,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:4396: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4413: \"$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
@@ -4444,20 +4461,20 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for fd_set in sys/types""... $ac_c" 1>&6
-echo "configure:4448: checking for fd_set in sys/types" >&5
+echo "configure:4465: checking for fd_set in sys/types" >&5
 if eval "test \"`echo '$''{'tcl_cv_type_fd_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 4454 "configure"
+#line 4471 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int main() {
 fd_set readMask, writeMask;
 ; return 0; }
 EOF
-if { (eval echo configure:4461: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4478: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_type_fd_set=yes
 else
@@ -4473,13 +4490,13 @@ echo "$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""... $ac_c" 1>&6
-echo "configure:4477: checking for fd_mask in sys/select" >&5
+echo "configure:4494: checking for fd_mask in sys/select" >&5
 if eval "test \"`echo '$''{'tcl_cv_grep_fd_mask'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 	cat > conftest.$ac_ext <<EOF
-#line 4483 "configure"
+#line 4500 "configure"
 #include "confdefs.h"
 #include <sys/select.h>
 EOF
@@ -4519,17 +4536,17 @@ for ac_hdr in sys/time.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4523: checking for $ac_hdr" >&5
+echo "configure:4540: 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 4528 "configure"
+#line 4545 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4533: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4550: \"$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*
@@ -4556,12 +4573,12 @@ fi
 done
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:4560: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:4577: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4565 "configure"
+#line 4582 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -4570,7 +4587,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:4574: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4591: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -4600,12 +4617,12 @@ fi
 
 
     echo $ac_n "checking for strtod""... $ac_c" 1>&6
-echo "configure:4604: checking for strtod" >&5
+echo "configure:4621: checking for strtod" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4609 "configure"
+#line 4626 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtod(); below.  */
@@ -4628,7 +4645,7 @@ strtod();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4632: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4649: \"$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
@@ -4650,7 +4667,7 @@ fi
 
     if test "$tcl_strtod" = 1; then
 	echo $ac_n "checking for Solaris2.4/Tru64 strtod bugs""... $ac_c" 1>&6
-echo "configure:4654: checking for Solaris2.4/Tru64 strtod bugs" >&5
+echo "configure:4671: checking for Solaris2.4/Tru64 strtod bugs" >&5
 if eval "test \"`echo '$''{'tcl_cv_strtod_buggy'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4659,7 +4676,7 @@ else
   tcl_cv_strtod_buggy=buggy
 else
   cat > conftest.$ac_ext <<EOF
-#line 4663 "configure"
+#line 4680 "configure"
 #include "confdefs.h"
 
 		extern double strtod();
@@ -4682,7 +4699,7 @@ else
 		    exit(0);
 		}
 EOF
-if { (eval echo configure:4686: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4703: \"$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
@@ -4713,12 +4730,12 @@ EOF
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:4717: checking for ANSI C header files" >&5
+echo "configure:4734: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4722 "configure"
+#line 4739 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -4726,7 +4743,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4730: \"$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*
@@ -4743,7 +4760,7 @@ 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 4747 "configure"
+#line 4764 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -4761,7 +4778,7 @@ 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 4765 "configure"
+#line 4782 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -4782,7 +4799,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 4786 "configure"
+#line 4803 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -4793,7 +4810,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:4797: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4814: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -4817,12 +4834,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:4821: checking for mode_t" >&5
+echo "configure:4838: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4826 "configure"
+#line 4843 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4850,12 +4867,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:4854: checking for pid_t" >&5
+echo "configure:4871: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4859 "configure"
+#line 4876 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4883,12 +4900,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:4887: checking for size_t" >&5
+echo "configure:4904: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4892 "configure"
+#line 4909 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4916,12 +4933,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:4920: checking for uid_t in sys/types.h" >&5
+echo "configure:4937: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4925 "configure"
+#line 4942 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -4955,20 +4972,20 @@ fi
 #-------------------------------------------
 
 echo $ac_n "checking pw_gecos in struct pwd""... $ac_c" 1>&6
-echo "configure:4959: checking pw_gecos in struct pwd" >&5
+echo "configure:4976: checking pw_gecos in struct pwd" >&5
 if eval "test \"`echo '$''{'tcl_cv_pwd_pw_gecos'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
     cat > conftest.$ac_ext <<EOF
-#line 4965 "configure"
+#line 4982 "configure"
 #include "confdefs.h"
 #include <pwd.h>
 int main() {
 struct passwd pwd; pwd.pw_gecos;
 ; return 0; }
 EOF
-if { (eval echo configure:4972: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4989: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_pwd_pw_gecos=yes
 else
@@ -4994,7 +5011,7 @@ fi
 
 if test "`uname -s`" = "Darwin" ; then
     echo $ac_n "checking whether to use Aqua""... $ac_c" 1>&6
-echo "configure:4998: checking whether to use Aqua" >&5
+echo "configure:5015: checking whether to use Aqua" >&5
     # Check whether --enable-aqua or --disable-aqua was given.
 if test "${enable_aqua+set}" = set; then
   enableval="$enable_aqua"
@@ -5021,7 +5038,7 @@ fi
     if test "$fat_32_64" = yes; then
 	if test $tk_aqua = no; then
 	    echo $ac_n "checking for 64-bit X11""... $ac_c" 1>&6
-echo "configure:5025: checking for 64-bit X11" >&5
+echo "configure:5042: checking for 64-bit X11" >&5
 if eval "test \"`echo '$''{'tcl_cv_lib_x11_64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5032,14 +5049,14 @@ else
 		CPPFLAGS="$CPPFLAGS -I/usr/X11R6/include"
 		LDFLAGS="$LDFLAGS -L/usr/X11R6/lib -lX11"
 		cat > conftest.$ac_ext <<EOF
-#line 5036 "configure"
+#line 5053 "configure"
 #include "confdefs.h"
 #include <X11/Xlib.h>
 int main() {
 XrmInitialize();
 ; return 0; }
 EOF
-if { (eval echo configure:5043: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5060: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   tcl_cv_lib_x11_64=yes
 else
@@ -5099,7 +5116,7 @@ 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:5103: checking for X" >&5
+echo "configure:5120: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -5161,12 +5178,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 5165 "configure"
+#line 5182 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5170: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5187: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5235,14 +5252,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5239 "configure"
+#line 5256 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:5246: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5263: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -5332,12 +5349,12 @@ fi
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
 	    cat > conftest.$ac_ext <<EOF
-#line 5336 "configure"
+#line 5353 "configure"
 #include "confdefs.h"
 #include <X11/XIntrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5341: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5358: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -5357,15 +5374,15 @@ rm -f conftest*
     fi
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	echo $ac_n "checking for X11 header files""... $ac_c" 1>&6
-echo "configure:5361: checking for X11 header files" >&5
+echo "configure:5378: checking for X11 header files" >&5
 	found_xincludes="no"
 	cat > conftest.$ac_ext <<EOF
-#line 5364 "configure"
+#line 5381 "configure"
 #include "confdefs.h"
 #include <X11/Intrinsic.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5369: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5386: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -5395,13 +5412,13 @@ rm -f conftest*
 	    found_xincludes="yes"
 	fi
     fi
-    if test found_xincludes = "no"; then
+    if test "$found_xincludes" = "no"; then
 	echo "$ac_t""couldn't find any!" 1>&6
     fi
 
     if test "$no_x" = yes; then
 	echo $ac_n "checking for X11 libraries""... $ac_c" 1>&6
-echo "configure:5405: checking for X11 libraries" >&5
+echo "configure:5422: 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 $dirs ; do
@@ -5421,7 +5438,7 @@ echo "configure:5405: checking for X11 libraries" >&5
     fi
     if test "$XLIBSW" = nope ; then
 	echo $ac_n "checking for XCreateWindow in -lXwindow""... $ac_c" 1>&6
-echo "configure:5425: checking for XCreateWindow in -lXwindow" >&5
+echo "configure:5442: checking for XCreateWindow in -lXwindow" >&5
 ac_lib_var=`echo Xwindow'_'XCreateWindow | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5429,7 +5446,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXwindow  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5433 "configure"
+#line 5450 "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
@@ -5440,7 +5457,7 @@ int main() {
 XCreateWindow()
 ; return 0; }
 EOF
-if { (eval echo configure:5444: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5461: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5517,7 +5534,7 @@ eval "LD_SEARCH_FLAGS=\"$TCL_LD_SEARCH_FLAGS\""
 
 if test $tk_aqua = no; then
     echo $ac_n "checking for main in -lXbsd""... $ac_c" 1>&6
-echo "configure:5521: checking for main in -lXbsd" >&5
+echo "configure:5538: checking for main in -lXbsd" >&5
 ac_lib_var=`echo Xbsd'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5525,14 +5542,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lXbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5529 "configure"
+#line 5546 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5536: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5553: \"$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
@@ -5556,12 +5573,12 @@ fi
 
 tk_checkBoth=0
 echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:5560: checking for connect" >&5
+echo "configure:5577: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5565 "configure"
+#line 5582 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -5584,7 +5601,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5588: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5605: \"$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
@@ -5606,7 +5623,7 @@ fi
 
 if test "$tk_checkSocket" = 1; then
     echo $ac_n "checking for main in -lsocket""... $ac_c" 1>&6
-echo "configure:5610: checking for main in -lsocket" >&5
+echo "configure:5627: checking for main in -lsocket" >&5
 ac_lib_var=`echo socket'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5614,14 +5631,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5618 "configure"
+#line 5635 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5625: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5642: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5647,12 +5664,12 @@ if test "$tk_checkBoth" = 1; then
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lsocket -lnsl"
     echo $ac_n "checking for accept""... $ac_c" 1>&6
-echo "configure:5651: checking for accept" >&5
+echo "configure:5668: checking for accept" >&5
 if eval "test \"`echo '$''{'ac_cv_func_accept'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5656 "configure"
+#line 5673 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char accept(); below.  */
@@ -5675,7 +5692,7 @@ accept();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5679: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5696: \"$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
@@ -5697,12 +5714,12 @@ fi
 
 fi
 echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:5701: checking for gethostbyname" >&5
+echo "configure:5718: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5706 "configure"
+#line 5723 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -5725,7 +5742,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5746: \"$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
@@ -5743,7 +5760,7 @@ 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""... $ac_c" 1>&6
-echo "configure:5747: checking for main in -lnsl" >&5
+echo "configure:5764: checking for main in -lnsl" >&5
 ac_lib_var=`echo nsl'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5751,14 +5768,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5755 "configure"
+#line 5772 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:5762: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5779: \"$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
@@ -5794,13 +5811,13 @@ fi
 
 if test -d /usr/include/mit -a $tk_aqua = no; then
     echo $ac_n "checking MIT X libraries""... $ac_c" 1>&6
-echo "configure:5798: checking MIT X libraries" >&5
+echo "configure:5815: checking MIT X libraries" >&5
     tk_oldCFlags=$CFLAGS
     CFLAGS="$CFLAGS -I/usr/include/mit"
     tk_oldLibs=$LIBS
     LIBS="$LIBS -lX11-mit"
     cat > conftest.$ac_ext <<EOF
-#line 5804 "configure"
+#line 5821 "configure"
 #include "confdefs.h"
 
 	#include <X11/Xlib.h>
@@ -5811,7 +5828,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:5815: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5832: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   
 	echo "$ac_t""yes" 1>&6
@@ -5835,14 +5852,14 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether char is unsigned""... $ac_c" 1>&6
-echo "configure:5839: checking whether char is unsigned" >&5
+echo "configure:5856: checking whether char is unsigned" >&5
 if eval "test \"`echo '$''{'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.$ac_ext <<EOF
-#line 5846 "configure"
+#line 5863 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -5864,7 +5881,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 5868 "configure"
+#line 5885 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -5874,7 +5891,7 @@ main() {
   volatile char c = 255; exit(c < 0);
 }
 EOF
-if { (eval echo configure:5878: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5895: \"$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
@@ -5935,7 +5952,7 @@ if test "`uname -s`" = "Darwin" ; then
     
     if test "`uname -s`" = "Darwin" ; then
 	echo $ac_n "checking how to package libraries""... $ac_c" 1>&6
-echo "configure:5939: checking how to package libraries" >&5
+echo "configure:5956: checking how to package libraries" >&5
 	# Check whether --enable-framework or --disable-framework was given.
 if test "${enable_framework+set}" = set; then
   enableval="$enable_framework"
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 21a2d93..fe4c6ff 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -33,8 +33,15 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 
 	    # First check to see if --with-tcl was specified.
 	    if test x"${with_tclconfig}" != x ; then
+		case "${with_tclconfig}" in
+		    */tclConfig.sh )
+			if test -f "${with_tclconfig}"; then
+			    AC_MSG_WARN([--with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself])
+			    with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
+			fi ;;
+		esac
 		if test -f "${with_tclconfig}/tclConfig.sh" ; then
-		    ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
+		    ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
 		else
 		    AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
 		fi
@@ -56,7 +63,7 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 			`ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 			`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tclConfig.sh" ; then
-			ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
 			break
 		    fi
 		done
@@ -70,7 +77,7 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 			`ls -d /System/Library/Frameworks 2>/dev/null` \
 			; do
 		    if test -f "$i/Tcl.framework/tclConfig.sh" ; then
-			ac_cv_c_tclconfig=`(cd $i/Tcl.framework; pwd)`
+			ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
 			break
 		    fi
 		done
@@ -84,9 +91,10 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 			`ls -d /usr/local/lib 2>/dev/null` \
 			`ls -d /usr/contrib/lib 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
 			; do
 		    if test -f "$i/tclConfig.sh" ; then
-			ac_cv_c_tclconfig=`(cd $i; pwd)`
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
 			break
 		    fi
 		done
@@ -100,7 +108,7 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tclConfig.sh" ; then
-		    ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
 		    break
 		fi
 		done
@@ -109,11 +117,10 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 
 	if test x"${ac_cv_c_tclconfig}" = x ; then
 	    TCL_BIN_DIR="# no Tcl configs found"
-	    AC_MSG_WARN([Can't find Tcl configuration definitions])
-	    exit 0
+	    AC_MSG_ERROR([Can't find Tcl configuration definitions. Use --with-tcl to specify a directory containing tclConfig.sh])
 	else
 	    no_tcl=
-	    TCL_BIN_DIR=${ac_cv_c_tclconfig}
+	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
 	    AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
 	fi
     fi
@@ -153,8 +160,15 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 
 	    # First check to see if --with-tkconfig was specified.
 	    if test x"${with_tkconfig}" != x ; then
+		case "${with_tkconfig}" in
+		    */tkConfig.sh )
+			if test -f "${with_tkconfig}"; then
+			    AC_MSG_WARN([--with-tk argument should refer to directory containing tkConfig.sh, not to tkConfig.sh itself])
+			    with_tkconfig="`echo "${with_tkconfig}" | sed 's!/tkConfig\.sh$!!'`"
+			fi ;;
+		esac
 		if test -f "${with_tkconfig}/tkConfig.sh" ; then
-		    ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
+		    ac_cv_c_tkconfig="`(cd "${with_tkconfig}"; pwd)`"
 		else
 		    AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
 		fi
@@ -176,7 +190,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 			`ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
 			`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tkConfig.sh" ; then
-			ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
+			ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
 			break
 		    fi
 		done
@@ -190,7 +204,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 			`ls -d /System/Library/Frameworks 2>/dev/null` \
 			; do
 		    if test -f "$i/Tk.framework/tkConfig.sh" ; then
-			ac_cv_c_tkconfig=`(cd $i/Tk.framework; pwd)`
+			ac_cv_c_tkconfig="`(cd $i/Tk.framework; pwd)`"
 			break
 		    fi
 		done
@@ -204,13 +218,15 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 			`ls -d /usr/local/lib 2>/dev/null` \
 			`ls -d /usr/contrib/lib 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
 			; do
 		    if test -f "$i/tkConfig.sh" ; then
-			ac_cv_c_tkconfig=`(cd $i; pwd)`
+			ac_cv_c_tkconfig="`(cd $i; pwd)`"
 			break
 		    fi
 		done
 	    fi
+
 	    # check in a few other private locations
 	    if test x"${ac_cv_c_tkconfig}" = x ; then
 		for i in \
@@ -219,7 +235,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
 			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
 		    if test -f "$i/unix/tkConfig.sh" ; then
-			ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
+			ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
 			break
 		    fi
 		done
@@ -228,11 +244,10 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 
 	if test x"${ac_cv_c_tkconfig}" = x ; then
 	    TK_BIN_DIR="# no Tk configs found"
-	    AC_MSG_WARN([Can't find Tk configuration definitions])
-	    exit 0
+	    AC_MSG_ERROR([Can't find Tk configuration definitions. Use --with-tk to specify a directory containing tkConfig.sh])
 	else
 	    no_tk=
-	    TK_BIN_DIR=${ac_cv_c_tkconfig}
+	    TK_BIN_DIR="${ac_cv_c_tkconfig}"
 	    AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
 	fi
     fi
@@ -244,7 +259,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 #	Load the tclConfig.sh file
 #
 # Arguments:
-#	
+#
 #	Requires the following vars to be set:
 #		TCL_BIN_DIR
 #
@@ -262,7 +277,7 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
 
     if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
         AC_MSG_RESULT([loading])
-	. ${TCL_BIN_DIR}/tclConfig.sh
+	. "${TCL_BIN_DIR}/tclConfig.sh"
     else
         AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
     fi
@@ -277,27 +292,27 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
     # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
     # instead of TCL_BUILD_LIB_SPEC since it will work with both an
     # installed and uninstalled version of Tcl.
-    if test -f ${TCL_BIN_DIR}/Makefile ; then
-        TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
-        TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
-        TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
+    if test -f "${TCL_BIN_DIR}/Makefile" ; then
+        TCL_LIB_SPEC="${TCL_BUILD_LIB_SPEC}"
+        TCL_STUB_LIB_SPEC="${TCL_BUILD_STUB_LIB_SPEC}"
+        TCL_STUB_LIB_PATH="${TCL_BUILD_STUB_LIB_PATH}"
     elif test "`uname -s`" = "Darwin"; then
 	# If Tcl was built as a framework, attempt to use the libraries
 	# from the framework at the given location so that linking works
-	# against Tcl.framework installed in an arbitary location.
+	# against Tcl.framework installed in an arbitrary location.
 	case ${TCL_DEFS} in
 	    *TCL_FRAMEWORK*)
-		if test -f ${TCL_BIN_DIR}/${TCL_LIB_FILE}; then
-		    for i in "`cd ${TCL_BIN_DIR}; pwd`" \
-			     "`cd ${TCL_BIN_DIR}/../..; pwd`"; do
+		if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
+		    for i in "`cd "${TCL_BIN_DIR}"; pwd`" \
+			     "`cd "${TCL_BIN_DIR}"/../..; pwd`"; do
 			if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
-			    TCL_LIB_SPEC="-F`dirname "$i"` -framework ${TCL_LIB_FILE}"
+			    TCL_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TCL_LIB_FILE}"
 			    break
 			fi
 		    done
 		fi
-		if test -f ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}; then
-		    TCL_STUB_LIB_SPEC="-L${TCL_BIN_DIR} ${TCL_STUB_LIB_FLAG}"
+		if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
+		    TCL_STUB_LIB_SPEC="-L`echo "${TCL_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TCL_STUB_LIB_FLAG}"
 		    TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
 		fi
 		;;
@@ -330,7 +345,7 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
 #	Load the tkConfig.sh file
 #
 # Arguments:
-#	
+#
 #	Requires the following vars to be set:
 #		TK_BIN_DIR
 #
@@ -345,7 +360,7 @@ AC_DEFUN([SC_LOAD_TKCONFIG], [
 
     if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
         AC_MSG_RESULT([loading])
-	. ${TK_BIN_DIR}/tkConfig.sh
+	. "${TK_BIN_DIR}/tkConfig.sh"
     else
         AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
     fi
@@ -360,27 +375,27 @@ AC_DEFUN([SC_LOAD_TKCONFIG], [
     # of TK_BUILD_LIB_SPEC. An extension should make use of TK_LIB_SPEC
     # instead of TK_BUILD_LIB_SPEC since it will work with both an
     # installed and uninstalled version of Tcl.
-    if test -f ${TK_BIN_DIR}/Makefile ; then
-        TK_LIB_SPEC=${TK_BUILD_LIB_SPEC}
-        TK_STUB_LIB_SPEC=${TK_BUILD_STUB_LIB_SPEC}
-        TK_STUB_LIB_PATH=${TK_BUILD_STUB_LIB_PATH}
+    if test -f "${TK_BIN_DIR}/Makefile" ; then
+        TK_LIB_SPEC="${TK_BUILD_LIB_SPEC}"
+        TK_STUB_LIB_SPEC="${TK_BUILD_STUB_LIB_SPEC}"
+        TK_STUB_LIB_PATH="${TK_BUILD_STUB_LIB_PATH}"
     elif test "`uname -s`" = "Darwin"; then
 	# If Tk was built as a framework, attempt to use the libraries
 	# from the framework at the given location so that linking works
-	# against Tk.framework installed in an arbitary location.
+	# against Tk.framework installed in an arbitrary location.
 	case ${TK_DEFS} in
 	    *TK_FRAMEWORK*)
-		if test -f ${TK_BIN_DIR}/${TK_LIB_FILE}; then
-		    for i in "`cd ${TK_BIN_DIR}; pwd`" \
-			     "`cd ${TK_BIN_DIR}/../..; pwd`"; do
+		if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
+		    for i in "`cd "${TK_BIN_DIR}"; pwd`" \
+			     "`cd "${TK_BIN_DIR}"/../..; pwd`"; do
 			if test "`basename "$i"`" = "${TK_LIB_FILE}.framework"; then
-			    TK_LIB_SPEC="-F`dirname "$i"` -framework ${TK_LIB_FILE}"
+			    TK_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TK_LIB_FILE}"
 			    break
 			fi
 		    done
 		fi
-		if test -f ${TK_BIN_DIR}/${TK_STUB_LIB_FILE}; then
-		    TK_STUB_LIB_SPEC="-L${TK_BIN_DIR} ${TK_STUB_LIB_FLAG}"
+		if test -f "${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"; then
+		    TK_STUB_LIB_SPEC="-L` echo "${TK_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TK_STUB_LIB_FLAG}"
 		    TK_STUB_LIB_PATH="${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"
 		fi
 		;;
@@ -473,7 +488,7 @@ AC_DEFUN([SC_PROG_TCLSH], [
 
 AC_DEFUN([SC_BUILD_TCLSH], [
     AC_MSG_CHECKING([for tclsh in Tcl build directory])
-    BUILD_TCLSH=${TCL_BIN_DIR}/tclsh
+    BUILD_TCLSH="${TCL_BIN_DIR}"/tclsh
     AC_MSG_RESULT([$BUILD_TCLSH])
     AC_SUBST(BUILD_TCLSH)
 ])
@@ -485,7 +500,7 @@ AC_DEFUN([SC_BUILD_TCLSH], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -518,7 +533,7 @@ AC_DEFUN([SC_ENABLE_SHARED], [
     else
 	AC_MSG_RESULT([static])
 	SHARED_BUILD=0
-	AC_DEFINE(STATIC_BUILD)
+	AC_DEFINE(STATIC_BUILD, 1, [Is this a static build?])
     fi
 ])
 
@@ -529,7 +544,7 @@ AC_DEFUN([SC_ENABLE_SHARED], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -578,7 +593,7 @@ AC_DEFUN([SC_ENABLE_FRAMEWORK], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -606,12 +621,14 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 	TCL_THREADS=1
 	# USE_THREAD_ALLOC tells us to try the special thread-based
 	# allocator that significantly reduces lock contention
-	AC_DEFINE(USE_THREAD_ALLOC)
-	AC_DEFINE(_REENTRANT)
+	AC_DEFINE(USE_THREAD_ALLOC, 1,
+	    [Do we want to use the threaded memory allocator?])
+	AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
 	if test "`uname -s`" = "SunOS" ; then
-	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+		    [Do we really want to follow the standard? Yes we do!])
 	fi
-	AC_DEFINE(_THREAD_SAFE)
+	AC_DEFINE(_THREAD_SAFE, 1, [Do we want the thread-safe OS API?])
 	AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
 	if test "$tcl_ok" = "no"; then
 	    # Check a little harder for __pthread_mutex_init in the same
@@ -670,7 +687,7 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 	    AC_MSG_RESULT([yes])
 	fi
     else
-	AC_MSG_RESULT([no (default)])
+	AC_MSG_RESULT([no])
     fi
 
     AC_SUBST(TCL_THREADS)
@@ -685,13 +702,13 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 #
 # Arguments:
 #	none
-#	
+#
 #	Requires the following vars to be set in the Makefile:
 #		CFLAGS_DEBUG
 #		CFLAGS_OPTIMIZE
 #		LDFLAGS_DEBUG
 #		LDFLAGS_OPTIMIZE
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -727,12 +744,12 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [
     AC_SUBST(LDFLAGS_DEFAULT)
 
     if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
-	AC_DEFINE(TCL_MEM_DEBUG)
+	AC_DEFINE(TCL_MEM_DEBUG, 1, [Is memory debugging enabled?])
     fi
 
     if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
-	AC_DEFINE(TCL_COMPILE_DEBUG)
-	AC_DEFINE(TCL_COMPILE_STATS)
+	AC_DEFINE(TCL_COMPILE_DEBUG, 1, [Is bytecode debugging enabled?])
+	AC_DEFINE(TCL_COMPILE_STATS, 1, [Are bytecode statistics enabled?])
     fi
 
     if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then
@@ -752,7 +769,7 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -780,16 +797,16 @@ AC_DEFUN([SC_ENABLE_LANGINFO], [
 		    [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
 	AC_MSG_RESULT([$tcl_cv_langinfo_h])
 	if test $tcl_cv_langinfo_h = yes; then
-	    AC_DEFINE(HAVE_LANGINFO)
+	    AC_DEFINE(HAVE_LANGINFO, 1, [Do we have nl_langinfo()?])
 	fi
-    else 
+    else
 	AC_MSG_RESULT([$langinfo_ok])
     fi
 ])
 
 #--------------------------------------------------------------------
 # SC_CONFIG_MANPAGES
-#	
+#
 #	Decide whether to use symlinks for linking the manpages,
 #	whether to compress the manpages after installation, and
 #	whether to add a package name suffix to the installed
@@ -963,7 +980,7 @@ AC_DEFUN([SC_CONFIG_SYSTEM], [
 # TCL_SHLIB_LD_EXTRAS - Additional element which are added to SHLIB_LD_LIBS
 #  TK_SHLIB_LD_EXTRAS   for the build of Tcl and Tk, but not recorded in the
 #                       tclConfig.sh, since they are only used for the build
-#                       of Tcl and Tk. 
+#                       of Tcl and Tk.
 #                       Examples: MacOS X records the library version and
 #                       compatibility version in the shared library.  But
 #                       of course the Tcl version of this is only used for Tcl.
@@ -1088,7 +1105,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    if test "$do64bit" = "yes" -a "`uname -v`" -gt "3" ; then
 		if test "$GCC" = "yes" ; then
 		    AC_MSG_WARN([64bit mode not supported with GCC on $system])
-		else 
+		else
 		    do64bit_ok=yes
 		    CFLAGS="$CFLAGS -q64"
 		    LDFLAGS="$LDFLAGS -q64"
@@ -1174,7 +1191,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    ;;
 	BSD/OS-4.*)
 	    SHLIB_CFLAGS="-export-dynamic -fPIC"
-	    SHLIB_LD="cc -shared"
+	    SHLIB_LD='${CC} -shared'
 	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
@@ -1183,9 +1200,19 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
+	CYGWIN_*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD='${CC} -shared'
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".dll"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
 	dgux*)
 	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD="cc -G"
+	    SHLIB_LD='${CC} -G'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
@@ -1340,7 +1367,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    SHLIB_SUFFIX=".so"
 
 	    CFLAGS_OPTIMIZE=-O2
-	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings 
+	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
 	    # when you inline the string and math operations.  Turn this off to
 	    # get rid of the warnings.
 	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
@@ -1653,8 +1680,8 @@ dnl AC_CHECK_TOOL(AR, ar)
 			eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
 		    done; fi
 		    LIBS="$LIBS -framework CoreFoundation"
-		    AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>], 
-			[CFBundleRef b = CFBundleGetMainBundle();], 
+		    AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
+			[CFBundleRef b = CFBundleGetMainBundle();],
 			tcl_cv_lib_corefoundation=yes, tcl_cv_lib_corefoundation=no)
 		    if test "$fat_32_64" = yes; then for v in CFLAGS CPPFLAGS LDFLAGS; do
 			eval $v'="$hold_'$v'"'
@@ -1670,8 +1697,8 @@ dnl AC_CHECK_TOOL(AR, ar)
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
 			done
-			AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>], 
-			    [CFBundleRef b = CFBundleGetMainBundle();], 
+			AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
+			    [CFBundleRef b = CFBundleGetMainBundle();],
 			    tcl_cv_lib_corefoundation_64=yes, tcl_cv_lib_corefoundation_64=no)
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval $v'="$hold_'$v'"'
@@ -1685,7 +1712,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    ;;
 	NEXTSTEP-*)
 	    SHLIB_CFLAGS=""
-	    SHLIB_LD="cc -nostdlib -r"
+	    SHLIB_LD='${CC} -nostdlib -r'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadNext.o"
@@ -1695,8 +1722,9 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    ;;
 	OS/390-*)
 	    CFLAGS_OPTIMIZE=""		# Optimizer is buggy
-	    AC_DEFINE(_OE_SOCKETS)	# needed in sys/socket.h
-	    ;;      
+	    AC_DEFINE(_OE_SOCKETS, 1,	# needed in sys/socket.h
+		[Should OS/390 do the right thing with sockets?])
+	    ;;
 	OSF1-1.0|OSF1-1.1|OSF1-1.2)
 	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
 	    SHLIB_CFLAGS=""
@@ -1732,7 +1760,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    else
 	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
 	    fi
-	    SHLIB_LD_LIBS=""
+	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS=""
@@ -1802,7 +1830,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    ;;
 	SINIX*5.4*)
 	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD="cc -G"
+	    SHLIB_LD='${CC} -G'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
 	    DL_OBJS="tclLoadDl.o"
@@ -1835,8 +1863,9 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    # Note: If _REENTRANT isn't defined, then Solaris
 	    # won't define thread-safe library routines.
 
-	    AC_DEFINE(_REENTRANT)
-	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
+	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+		[Do we really want to follow the standard? Yes we do!])
 
 	    SHLIB_CFLAGS="-KPIC"
 
@@ -1848,7 +1877,7 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
 	    if test "$GCC" = "yes" ; then
-		SHLIB_LD="$CC -shared"
+		SHLIB_LD='${CC} -shared'
 		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    else
@@ -1861,8 +1890,9 @@ dnl AC_CHECK_TOOL(AR, ar)
 	    # Note: If _REENTRANT isn't defined, then Solaris
 	    # won't define thread-safe library routines.
 
-	    AC_DEFINE(_REENTRANT)
-	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
+	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+		[Do we really want to follow the standard? Yes we do!])
 
 	    SHLIB_CFLAGS="-KPIC"
 
@@ -2003,7 +2033,7 @@ dnl # preprocessing tests use only CPPFLAGS.
     # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
     # to determine which of several header files defines the a.out file
     # format (a.out.h, sys/exec.h, or sys/exec_aout.h).  At present, we
-    # support only a file format that is more or less version-7-compatible. 
+    # support only a file format that is more or less version-7-compatible.
     # In particular,
     #	- a.out files must begin with `struct exec'.
     #	- the N_TXTOFF on the `struct exec' must compute the seek address
@@ -2216,7 +2246,7 @@ dnl        esac
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Defines only one of the following vars:
@@ -2317,9 +2347,9 @@ int main() {
 }], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
     fi])
     case $tcl_cv_api_serial in
-	termios) AC_DEFINE(USE_TERMIOS);;
-	termio)  AC_DEFINE(USE_TERMIO);;
-	sgtty)   AC_DEFINE(USE_SGTTY);;
+	termios) AC_DEFINE(USE_TERMIOS, 1, [Use the termios API for serial lines]);;
+	termio)  AC_DEFINE(USE_TERMIO, 1, [Use the termio API for serial lines]);;
+	sgtty)   AC_DEFINE(USE_SGTTY, 1, [Use the sgtty API for serial lines]);;
     esac
 ])
 
@@ -2335,7 +2365,7 @@ int main() {
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Defines some of the following vars:
@@ -2378,20 +2408,21 @@ closedir(d);
 ], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
 
     if test $tcl_cv_dirent_h = no; then
-	AC_DEFINE(NO_DIRENT_H)
+	AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
     fi
 
-    AC_CHECK_HEADER(errno.h, , [AC_DEFINE(NO_ERRNO_H)])
-    AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H)])
-    AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H)])
+    AC_CHECK_HEADER(errno.h, , [AC_DEFINE(NO_ERRNO_H, 1, [Do we have <errno.h>?])])
+    AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H, 1, [Do we have <float.h>?])])
+    AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H, 1, [Do we have <values.h>?])])
     AC_CHECK_HEADER(limits.h,
-	[AC_DEFINE(HAVE_LIMITS_H)], [AC_DEFINE(NO_LIMITS_H)])
+	[AC_DEFINE(HAVE_LIMITS_H, 1, [Do we have <limits.h>?])],
+	[AC_DEFINE(NO_LIMITS_H, 1, [Do we have <limits.h>?])])
     AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
     AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
     AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
     AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
     if test $tcl_ok = 0; then
-	AC_DEFINE(NO_STDLIB_H)
+	AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
     fi
     AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
     AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
@@ -2401,11 +2432,11 @@ closedir(d);
     # set and why.
 
     if test $tcl_ok = 0; then
-	AC_DEFINE(NO_STRING_H)
+	AC_DEFINE(NO_STRING_H, 1, [Do we have <string.h>?])
     fi
 
-    AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H)])
-    AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H)])
+    AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H, 1, [Do we have <sys/wait.h>?])])
+    AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H, 1, [Do we have <dlfcn.h>?])])
 
     # OS/390 lacks sys/param.h (and doesn't need it, by chance).
     AC_HAVE_HEADERS(unistd.h sys/param.h)
@@ -2423,10 +2454,10 @@ closedir(d);
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
-#	Sets the the following vars:
+#	Sets the following vars:
 #		XINCLUDES
 #		XLIBSW
 #
@@ -2465,7 +2496,7 @@ AC_DEFUN([SC_PATH_X], [
 	    found_xincludes="yes"
 	fi
     fi
-    if test found_xincludes = "no"; then
+    if test "$found_xincludes" = "no"; then
 	AC_MSG_RESULT([couldn't find any!])
     fi
 
@@ -2501,13 +2532,13 @@ AC_DEFUN([SC_PATH_X], [
 # SC_BLOCKING_STYLE
 #
 #	The statements below check for systems where POSIX-style
-#	non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented. 
+#	non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented.
 #	On these systems (mostly older ones), use the old BSD-style
 #	FIONBIO approach instead.
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Defines some of the following vars:
@@ -2530,15 +2561,15 @@ AC_DEFUN([SC_BLOCKING_STYLE], [
 	# code (JO, 5/31/97).
 
 	OSF*)
-	    AC_DEFINE(USE_FIONBIO)
+	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
 	    AC_MSG_RESULT([FIONBIO])
 	    ;;
 	SunOS-4*)
-	    AC_DEFINE(USE_FIONBIO)
+	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
 	    AC_MSG_RESULT([FIONBIO])
 	    ;;
 	ULTRIX-4.*)
-	    AC_DEFINE(USE_FIONBIO)
+	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
 	    AC_MSG_RESULT([FIONBIO])
 	    ;;
 	*)
@@ -2555,7 +2586,7 @@ AC_DEFUN([SC_BLOCKING_STYLE], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Defines some of the following vars:
@@ -2577,14 +2608,14 @@ AC_DEFUN([SC_TIME_HANDLER], [
 	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
 	    tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
     if test $tcl_cv_member_tm_tzadj = yes ; then
-	AC_DEFINE(HAVE_TM_TZADJ)
+	AC_DEFINE(HAVE_TM_TZADJ, 1, [Should we use the tm_tzadj field of struct tm?])
     fi
 
     AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
 	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
 	    tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
     if test $tcl_cv_member_tm_gmtoff = yes ; then
-	AC_DEFINE(HAVE_TM_GMTOFF)
+	AC_DEFINE(HAVE_TM_GMTOFF, 1, [Should we use the tm_gmtoff field of struct tm?])
     fi
 
     #
@@ -2598,7 +2629,7 @@ AC_DEFUN([SC_TIME_HANDLER], [
 	    exit (0);],
 	    tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
     if test $tcl_cv_timezone_long = yes ; then
-	AC_DEFINE(HAVE_TIMEZONE_VAR)
+	AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
     else
 	#
 	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
@@ -2610,7 +2641,7 @@ AC_DEFUN([SC_TIME_HANDLER], [
 		exit (0);],
 		tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
 	if test $tcl_cv_timezone_time = yes ; then
-	    AC_DEFINE(HAVE_TIMEZONE_VAR)
+	    AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
 	fi
     fi
 ])
@@ -2627,7 +2658,7 @@ AC_DEFUN([SC_TIME_HANDLER], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Might defines some of the following vars:
@@ -2662,7 +2693,7 @@ AC_DEFUN([SC_BUGGY_STRTOD], [
 		    tcl_cv_strtod_buggy=buggy)])
 	if test "$tcl_cv_strtod_buggy" = buggy; then
 	    LIBOBJS="$LIBOBJS fixstrtod.o"
-	    AC_DEFINE(strtod, fixstrtod)
+	    AC_DEFINE(strtod, fixstrtod, [Do we want to use the strtod() in compat?])
 	fi
     fi
 ])
@@ -2679,7 +2710,7 @@ AC_DEFUN([SC_BUGGY_STRTOD], [
 #		DL_LIBS
 #		LIBS
 #		MATH_LIBS
-#	
+#
 # Results:
 #
 #	Subst's the following var:
@@ -2711,7 +2742,8 @@ AC_DEFUN([SC_TCL_LINK_LIBS], [
     #--------------------------------------------------------------------
 
     AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
-    AC_CHECK_HEADER(net/errno.h, [AC_DEFINE(HAVE_NET_ERRNO_H)])
+    AC_CHECK_HEADER(net/errno.h, [
+	AC_DEFINE(HAVE_NET_ERRNO_H, 1, [Do we have <net/errno.h>?])])
 
     #--------------------------------------------------------------------
     #	Check for the existence of the -lsocket and -lnsl libraries.
@@ -2761,7 +2793,7 @@ AC_DEFUN([SC_TCL_LINK_LIBS], [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -2779,7 +2811,7 @@ AC_DEFUN([SC_TCL_EARLY_FLAG],[
 		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
 		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)))
     if test ["x${tcl_cv_flag_]translit($1,[A-Z],[a-z])[}" = "xyes"] ; then
-	AC_DEFINE($1)
+	AC_DEFINE($1, 1, [Add the ]$1[ flag when building])
 	tcl_flags="$tcl_flags $1"
     fi
 ])
@@ -2807,7 +2839,7 @@ AC_DEFUN([SC_TCL_EARLY_FLAGS],[
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -2829,14 +2861,15 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 	# See if we should use long anyway  Note that we substitute in the
 	# type that is our current guess for a 64-bit type inside this check
 	# program, so it should be modified only carefully...
-        AC_TRY_COMPILE(,[switch (0) { 
-            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ; 
+        AC_TRY_COMPILE(,[switch (0) {
+            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ;
         }],tcl_cv_type_64bit=${tcl_type_64bit})])
     if test "${tcl_cv_type_64bit}" = none ; then
-	AC_DEFINE(TCL_WIDE_INT_IS_LONG)
+	AC_DEFINE(TCL_WIDE_INT_IS_LONG, 1, [Are wide integers to be implemented with C 'long's?])
 	AC_MSG_RESULT([using long])
     else
-	AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit})
+	AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit},
+	    [What type should be used to define wide integers?])
 	AC_MSG_RESULT([${tcl_cv_type_64bit}])
 
 	# Now check for auxiliary declarations
@@ -2845,7 +2878,7 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 #include <sys/dirent.h>],[struct dirent64 p;],
 		tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
 	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
-	    AC_DEFINE(HAVE_STRUCT_DIRENT64)
+	    AC_DEFINE(HAVE_STRUCT_DIRENT64, 1, [Is 'struct dirent64' in <sys/types.h>?])
 	fi
 
 	AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
@@ -2853,7 +2886,7 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 ],
 		tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
 	if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
-	    AC_DEFINE(HAVE_STRUCT_STAT64)
+	    AC_DEFINE(HAVE_STRUCT_STAT64, 1, [Is 'struct stat64' in <sys/stat.h>?])
 	fi
 
 	AC_CHECK_FUNCS(open64 lseek64)
@@ -2867,7 +2900,7 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
 	        test "x${ac_cv_func_lseek64}" = "xyes" && \
 	        test "x${ac_cv_func_open64}" = "xyes" ; then
-	    AC_DEFINE(HAVE_TYPE_OFF64_T)
+	    AC_DEFINE(HAVE_TYPE_OFF64_T, 1, [Is off64_t in <sys/types.h>?])
 	    AC_MSG_RESULT([yes])
 	else
 	    AC_MSG_RESULT([no])
@@ -2882,7 +2915,7 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -2910,7 +2943,8 @@ AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
     ], tcl_cv_api_gethostbyaddr_r_7=yes, tcl_cv_api_gethostbyaddr_r_7=no)])
     tcl_ok=$tcl_cv_api_gethostbyaddr_r_7
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETHOSTBYADDR_R_7)
+	AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1,
+	    [Define to 1 if gethostbyaddr_r takes 7 args.])
     else
 	AC_CACHE_CHECK([for gethostbyaddr_r with 8 args], tcl_cv_api_gethostbyaddr_r_8, [
 	AC_TRY_COMPILE([
@@ -2929,11 +2963,13 @@ AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
 	], tcl_cv_api_gethostbyaddr_r_8=yes, tcl_cv_api_gethostbyaddr_r_8=no)])
 	tcl_ok=$tcl_cv_api_gethostbyaddr_r_8
 	if test "$tcl_ok" = yes; then
-	    AC_DEFINE(HAVE_GETHOSTBYADDR_R_8)
+	    AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1,
+		[Define to 1 if gethostbyaddr_r takes 8 args.])
 	fi
     fi
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETHOSTBYADDR_R)
+	AC_DEFINE(HAVE_GETHOSTBYADDR_R, 1,
+	    [Define to 1 if gethostbyaddr_r is available.])
     fi
 ])])
 
@@ -2946,7 +2982,7 @@ AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -2972,7 +3008,8 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
     ], tcl_cv_api_gethostbyname_r_6=yes, tcl_cv_api_gethostbyname_r_6=no)])
     tcl_ok=$tcl_cv_api_gethostbyname_r_6
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETHOSTBYNAME_R_6)
+	AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1,
+	    [Define to 1 if gethostbyname_r takes 6 args.])
     else
 	AC_CACHE_CHECK([for gethostbyname_r with 5 args], tcl_cv_api_gethostbyname_r_5, [
 	AC_TRY_COMPILE([
@@ -2988,7 +3025,8 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
 	], tcl_cv_api_gethostbyname_r_5=yes, tcl_cv_api_gethostbyname_r_5=no)])
 	tcl_ok=$tcl_cv_api_gethostbyname_r_5
 	if test "$tcl_ok" = yes; then
-	    AC_DEFINE(HAVE_GETHOSTBYNAME_R_5)
+	    AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1,
+		[Define to 1 if gethostbyname_r takes 5 args.])
 	else
 	    AC_CACHE_CHECK([for gethostbyname_r with 3 args], tcl_cv_api_gethostbyname_r_3, [
 	    AC_TRY_COMPILE([
@@ -3002,12 +3040,14 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
 	    ], tcl_cv_api_gethostbyname_r_3=yes, tcl_cv_api_gethostbyname_r_3=no)])
 	    tcl_ok=$tcl_cv_api_gethostbyname_r_3
 	    if test "$tcl_ok" = yes; then
-		AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
+		AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1,
+		    [Define to 1 if gethostbyname_r takes 3 args.])
 	    fi
 	fi
     fi
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETHOSTBYNAME_R)
+	AC_DEFINE(HAVE_GETHOSTBYNAME_R, 1,
+	    [Define to 1 if gethostbyname_r is available.])
     fi
 ])])
 
@@ -3019,7 +3059,7 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -3044,7 +3084,8 @@ AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
     ], tcl_cv_api_getpwuid_r_5=yes, tcl_cv_api_getpwuid_r_5=no)])
     tcl_ok=$tcl_cv_api_getpwuid_r_5
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETPWUID_R_5)
+	AC_DEFINE(HAVE_GETPWUID_R_5, 1,
+	    [Define to 1 if getpwuid_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getpwuid_r with 4 args], tcl_cv_api_getpwuid_r_4, [
 	AC_TRY_COMPILE([
@@ -3060,11 +3101,13 @@ AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
 	], tcl_cv_api_getpwuid_r_4=yes, tcl_cv_api_getpwuid_r_4=no)])
 	tcl_ok=$tcl_cv_api_getpwuid_r_4
 	if test "$tcl_ok" = yes; then
-	    AC_DEFINE(HAVE_GETPWUID_R_4)
+	    AC_DEFINE(HAVE_GETPWUID_R_4, 1,
+		[Define to 1 if getpwuid_r takes 4 args.])
 	fi
     fi
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETPWUID_R)
+	AC_DEFINE(HAVE_GETPWUID_R, 1,
+	    [Define to 1 if getpwuid_r is available.])
     fi
 ])])
 
@@ -3076,7 +3119,7 @@ AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -3101,7 +3144,8 @@ AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
     ], tcl_cv_api_getpwnam_r_5=yes, tcl_cv_api_getpwnam_r_5=no)])
     tcl_ok=$tcl_cv_api_getpwnam_r_5
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETPWNAM_R_5)
+	AC_DEFINE(HAVE_GETPWNAM_R_5, 1,
+	    [Define to 1 if getpwnam_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getpwnam_r with 4 args], tcl_cv_api_getpwnam_r_4, [
 	AC_TRY_COMPILE([
@@ -3117,11 +3161,13 @@ AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
 	], tcl_cv_api_getpwnam_r_4=yes, tcl_cv_api_getpwnam_r_4=no)])
 	tcl_ok=$tcl_cv_api_getpwnam_r_4
 	if test "$tcl_ok" = yes; then
-	    AC_DEFINE(HAVE_GETPWNAM_R_4)
+	    AC_DEFINE(HAVE_GETPWNAM_R_4, 1,
+		[Define to 1 if getpwnam_r takes 4 args.])
 	fi
     fi
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETPWNAM_R)
+	AC_DEFINE(HAVE_GETPWNAM_R, 1,
+	    [Define to 1 if getpwnam_r is available.])
     fi
 ])])
 
@@ -3133,7 +3179,7 @@ AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -3158,7 +3204,8 @@ AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
     ], tcl_cv_api_getgrgid_r_5=yes, tcl_cv_api_getgrgid_r_5=no)])
     tcl_ok=$tcl_cv_api_getgrgid_r_5
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETGRGID_R_5)
+	AC_DEFINE(HAVE_GETGRGID_R_5, 1,
+	    [Define to 1 if getgrgid_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getgrgid_r with 4 args], tcl_cv_api_getgrgid_r_4, [
 	AC_TRY_COMPILE([
@@ -3174,11 +3221,13 @@ AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
 	], tcl_cv_api_getgrgid_r_4=yes, tcl_cv_api_getgrgid_r_4=no)])
 	tcl_ok=$tcl_cv_api_getgrgid_r_4
 	if test "$tcl_ok" = yes; then
-	    AC_DEFINE(HAVE_GETGRGID_R_4)
+	    AC_DEFINE(HAVE_GETGRGID_R_4, 1,
+		[Define to 1 if getgrgid_r takes 4 args.])
 	fi
     fi
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETGRGID_R)
+	AC_DEFINE(HAVE_GETGRGID_R, 1,
+	    [Define to 1 if getgrgid_r is available.])
     fi
 ])])
 
@@ -3190,7 +3239,7 @@ AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
 #
 # Arguments:
 #	None
-#	
+#
 # Results:
 #
 #	Might define the following vars:
@@ -3215,7 +3264,8 @@ AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
     ], tcl_cv_api_getgrnam_r_5=yes, tcl_cv_api_getgrnam_r_5=no)])
     tcl_ok=$tcl_cv_api_getgrnam_r_5
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETGRNAM_R_5)
+	AC_DEFINE(HAVE_GETGRNAM_R_5, 1,
+	    [Define to 1 if getgrnam_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getgrnam_r with 4 args], tcl_cv_api_getgrnam_r_4, [
 	AC_TRY_COMPILE([
@@ -3231,11 +3281,13 @@ AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
 	], tcl_cv_api_getgrnam_r_4=yes, tcl_cv_api_getgrnam_r_4=no)])
 	tcl_ok=$tcl_cv_api_getgrnam_r_4
 	if test "$tcl_ok" = yes; then
-	    AC_DEFINE(HAVE_GETGRNAM_R_4)
+	    AC_DEFINE(HAVE_GETGRNAM_R_4, 1,
+		[Define to 1 if getgrnam_r takes 4 args.])
 	fi
     fi
     if test "$tcl_ok" = yes; then
-	AC_DEFINE(HAVE_GETGRNAM_R)
+	AC_DEFINE(HAVE_GETGRNAM_R, 1,
+	    [Define to 1 if getgrnam_r is available.])
     fi
 ])])
 
@@ -3255,4 +3307,6 @@ AC_DEFUN([SC_CONFIG_COMMANDS_PRE], [
     define([SC_OUTPUT_COMMANDS_PRE], defn([SC_OUTPUT_COMMANDS_PRE])[$1
 ])])
 AC_DEFUN([SC_OUTPUT_COMMANDS_PRE])
-
+# Local Variables:
+# mode: autoconf
+# End: