@@ -844,12 +844,12 @@
   --enable-threads        build with threads
   --enable-shared         build and link with shared libraries (default: on)
   --enable-64bit          enable 64bit support (default: off)
   --enable-64bit-vis      enable 64bit Sparc VIS support (default: off)
   --enable-wince          enable Win/CE support (where applicable)
-  --disable-load          disallow dynamic loading and "load" command
-                          (default: enabled)
+  --enable-load           allow dynamic loading and "load" command (default:
+                          on)
   --enable-symbols        build with debugging symbols (default: off)
   --enable-bsafe          Use RSA BSAFE SSL-C libs.  Default is to use OpenSSL libs
   --enable-patents        Use patented code.  Default is enabled
 
 Optional Packages:
@@ -1321,11 +1321,11 @@
 
 
 
     # TEA extensions pass this us the version of TEA they think they
     # are compatible with.
-    TEA_VERSION="3.5"
+    TEA_VERSION="3.6"
 
     echo "$as_me:$LINENO: checking for correct TEA configuration" >&5
 echo $ECHO_N "checking for correct TEA configuration... $ECHO_C" >&6
     if test x"${PACKAGE_NAME}" = x ; then
 	{ { echo "$as_me:$LINENO: error:
@@ -1332,19 +1332,19 @@
 The PACKAGE_NAME variable must be defined by your TEA configure.in" >&5
 echo "$as_me: error:
 The PACKAGE_NAME variable must be defined by your TEA configure.in" >&2;}
    { (exit 1); exit 1; }; }
     fi
-    if test x"3.5" = x ; then
+    if test x"3.6" = x ; then
 	{ { echo "$as_me:$LINENO: error:
 TEA version not specified." >&5
 echo "$as_me: error:
 TEA version not specified." >&2;}
    { (exit 1); exit 1; }; }
-    elif test "3.5" != "${TEA_VERSION}" ; then
-	echo "$as_me:$LINENO: result: warning: requested TEA version \"3.5\", have \"${TEA_VERSION}\"" >&5
-echo "${ECHO_T}warning: requested TEA version \"3.5\", have \"${TEA_VERSION}\"" >&6
+    elif test "3.6" != "${TEA_VERSION}" ; then
+	echo "$as_me:$LINENO: result: warning: requested TEA version \"3.6\", have \"${TEA_VERSION}\"" >&5
+echo "${ECHO_T}warning: requested TEA version \"3.6\", have \"${TEA_VERSION}\"" >&6
     else
 	echo "$as_me:$LINENO: result: ok (TEA ${TEA_VERSION})" >&5
 echo "${ECHO_T}ok (TEA ${TEA_VERSION})" >&6
     fi
     case "`uname -s`" in
@@ -1596,11 +1596,11 @@
 echo $ECHO_N "checking for existence of ${TCL_BIN_DIR}/tclConfig.sh... $ECHO_C" >&6
 
     if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
         echo "$as_me:$LINENO: result: loading" >&5
 echo "${ECHO_T}loading" >&6
-	. ${TCL_BIN_DIR}/tclConfig.sh
+	. "${TCL_BIN_DIR}/tclConfig.sh"
     else
         echo "$as_me:$LINENO: result: could not find ${TCL_BIN_DIR}/tclConfig.sh" >&5
 echo "${ECHO_T}could not find ${TCL_BIN_DIR}/tclConfig.sh" >&6
     fi
 
@@ -1612,30 +1612,30 @@
     # then set the common variable name to the value of the build variables.
     # For example, the variable TCL_LIB_SPEC will be set to the value
     # 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 ${TCL_BIN_DIR}/Makefile ; then
+    if test -f "${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.
 	case ${TCL_DEFS} in
 	    *TCL_FRAMEWORK*)
-		if test -f ${TCL_BIN_DIR}/${TCL_LIB_FILE}; then
+		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}"
 			    break
 			fi
 		    done
 		fi
-		if test -f ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}; then
+		if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
 		    TCL_STUB_LIB_SPEC="-L${TCL_BIN_DIR} ${TCL_STUB_LIB_FLAG}"
 		    TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
 		fi
 		;;
 	esac
@@ -3351,13 +3351,16 @@
     #------------------------------------------------------------------------
 
     if test -z "$no_pipe" -a -n "$GCC"; then
 	echo "$as_me:$LINENO: checking if the compiler understands -pipe" >&5
 echo $ECHO_N "checking if the compiler understands -pipe... $ECHO_C" >&6
-	OLDCC="$CC"
-	CC="$CC -pipe"
-	cat >conftest.$ac_ext <<_ACEOF
+if test "${tcl_cv_cc_pipe+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+	    hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -pipe"
+	    cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
@@ -3390,21 +3393,25 @@
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
+  tcl_cv_cc_pipe=yes
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-CC="$OLDCC"
-	    echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
+tcl_cv_cc_pipe=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+	    CFLAGS=$hold_cflags
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_cc_pipe" >&5
+echo "${ECHO_T}$tcl_cv_cc_pipe" >&6
+	if test $tcl_cv_cc_pipe = yes; then
+	    CFLAGS="$CFLAGS -pipe"
+	fi
     fi
 
     #--------------------------------------------------------------------
     # Common compiler flag setup
     #--------------------------------------------------------------------
@@ -4579,11 +4586,12 @@
     echo "$as_me:$LINENO: checking dirent.h" >&5
 echo $ECHO_N "checking dirent.h... $ECHO_C" >&6
 if test "${tcl_cv_dirent_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
+
+    cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
@@ -7667,11 +7675,19 @@
 
 	    # Needed by Tcl, but not most extensions
 	    #AC_DEFINE(_XOPEN_SOURCE, 1, [Do we want to use the XOPEN network library?])
 	    #LIBS="$LIBS -lxnet"               # Use the XOPEN network library
 
-	    SHLIB_SUFFIX=".sl"
+	    if test "`uname -m`" = "ia64" ; then
+		SHLIB_SUFFIX=".so"
+		# Use newer C++ library for C++ extensions
+		#if test "$GCC" != "yes" ; then
+		#   CPPFLAGS="-AA"
+		#fi
+	    else
+		SHLIB_SUFFIX=".sl"
+	    fi
 	    echo "$as_me:$LINENO: checking for shl_load in -ldld" >&5
 echo $ECHO_N "checking for shl_load in -ldld... $ECHO_C" >&6
 if test "${ac_cv_lib_dld_shl_load+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
@@ -7937,18 +7953,83 @@
 	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
 	    # when you inline the string and math operations.  Turn this off to
 	    # get rid of the warnings.
 	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
 
-	    SHLIB_LD="${CC} -shared"
+	    # TEA specific: use LDFLAGS_DEFAULT instead of LDFLAGS here:
+	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS_DEFAULT}'
 	    DL_OBJS="tclLoadDl.o"
 	    DL_LIBS="-ldl"
 	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
 	    CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    if test "`uname -m`" = "alpha" ; then
 		CFLAGS="$CFLAGS -mieee"
+	    fi
+	    if test $do64bit = yes; then
+		echo "$as_me:$LINENO: checking if compiler accepts -m64 flag" >&5
+echo $ECHO_N "checking if compiler accepts -m64 flag... $ECHO_C" >&6
+if test "${tcl_cv_cc_m64+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+		    hold_cflags=$CFLAGS
+		    CFLAGS="$CFLAGS -m64"
+		    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  tcl_cv_cc_m64=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+tcl_cv_cc_m64=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+		    CFLAGS=$hold_cflags
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_cc_m64" >&5
+echo "${ECHO_T}$tcl_cv_cc_m64" >&6
+		if test $tcl_cv_cc_m64 = yes; then
+		    CFLAGS="$CFLAGS -m64"
+		    do64bit_ok=yes
+		fi
 	    fi
 
 	    # The combo of gcc + glibc has a bug related
 	    # to inlining of functions like strtod(). The
 	    # -fno-builtin flag should address this problem
@@ -8141,25 +8222,168 @@
 	    esac
 	    ;;
 	Darwin-*)
 	    CFLAGS_OPTIMIZE="-Os"
 	    SHLIB_CFLAGS="-fno-common"
+	    # To avoid discrepancies between what headers configure sees during
+	    # preprocessing tests and compiling tests, move any -isysroot and
+	    # -mmacosx-version-min flags from CFLAGS to CPPFLAGS:
+	    CPPFLAGS="${CPPFLAGS} `echo " ${CFLAGS}" | \
+		awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+		if ($i~/^(isysroot|mmacosx-version-min)/) print "-"$i}'`"
+	    CFLAGS="`echo " ${CFLAGS}" | \
+		awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+		if (!($i~/^(isysroot|mmacosx-version-min)/)) print "-"$i}'`"
 	    if test $do64bit = yes; then
-	        do64bit_ok=yes
-	        CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+		case `arch` in
+		    ppc)
+			echo "$as_me:$LINENO: checking if compiler accepts -arch ppc64 flag" >&5
+echo $ECHO_N "checking if compiler accepts -arch ppc64 flag... $ECHO_C" >&6
+if test "${tcl_cv_cc_arch_ppc64+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+			    hold_cflags=$CFLAGS
+			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+			    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  tcl_cv_cc_arch_ppc64=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+tcl_cv_cc_arch_ppc64=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+			    CFLAGS=$hold_cflags
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_cc_arch_ppc64" >&5
+echo "${ECHO_T}$tcl_cv_cc_arch_ppc64" >&6
+			if test $tcl_cv_cc_arch_ppc64 = yes; then
+			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+			    do64bit_ok=yes
+			fi;;
+		    i386)
+			echo "$as_me:$LINENO: checking if compiler accepts -arch x86_64 flag" >&5
+echo $ECHO_N "checking if compiler accepts -arch x86_64 flag... $ECHO_C" >&6
+if test "${tcl_cv_cc_arch_x86_64+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+			    hold_cflags=$CFLAGS
+			    CFLAGS="$CFLAGS -arch x86_64"
+			    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  tcl_cv_cc_arch_x86_64=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+tcl_cv_cc_arch_x86_64=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+			    CFLAGS=$hold_cflags
+fi
+echo "$as_me:$LINENO: result: $tcl_cv_cc_arch_x86_64" >&5
+echo "${ECHO_T}$tcl_cv_cc_arch_x86_64" >&6
+			if test $tcl_cv_cc_arch_x86_64 = yes; then
+			    CFLAGS="$CFLAGS -arch x86_64"
+			    do64bit_ok=yes
+			fi;;
+		    *)
+			{ echo "$as_me:$LINENO: WARNING: Don't know how enable 64-bit on architecture \`arch\`" >&5
+echo "$as_me: WARNING: Don't know how enable 64-bit on architecture \`arch\`" >&2;};;
+		esac
+	    else
+		# Check for combined 32-bit and 64-bit fat build
+		echo "$CFLAGS " | grep -E -q -- '-arch (ppc64|x86_64) ' && \
+		    echo "$CFLAGS " | grep -E -q -- '-arch (ppc|i386) ' && \
+		    fat_32_64=yes
 	    fi
 	    # TEA specific: use LDFLAGS_DEFAULT instead of LDFLAGS here:
 	    SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS_DEFAULT}'
 	    echo "$as_me:$LINENO: checking if ld accepts -single_module flag" >&5
 echo $ECHO_N "checking if ld accepts -single_module flag... $ECHO_C" >&6
 if test "${tcl_cv_ld_single_module+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-	        hold_ldflags=$LDFLAGS
-	        LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
-	        cat >conftest.$ac_ext <<_ACEOF
+		hold_ldflags=$LDFLAGS
+		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
+		cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
@@ -8201,35 +8425,35 @@
 
 tcl_cv_ld_single_module=no
 fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
-	        LDFLAGS=$hold_ldflags
+		LDFLAGS=$hold_ldflags
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_ld_single_module" >&5
 echo "${ECHO_T}$tcl_cv_ld_single_module" >&6
 	    if test $tcl_cv_ld_single_module = yes; then
-	        SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
+		SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
 	    fi
 	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dylib"
 	    DL_OBJS="tclLoadDyld.o"
 	    DL_LIBS=""
 	    # Don't use -prebind when building for Mac OS X 10.4 or later only:
-	    test -z "${MACOSX_DEPLOYMENT_TARGET}" || \
-		test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F. '{print $2}'`" -lt 4 && \
+	    test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F '10\\.' '{print int($2)}'`" -lt 4 -a \
+		"`echo "${CPPFLAGS}" | awk -F '-mmacosx-version-min=10\\.' '{print int($2)}'`" -lt 4 && \
 		LDFLAGS="$LDFLAGS -prebind"
 	    LDFLAGS="$LDFLAGS -headerpad_max_install_names"
 	    echo "$as_me:$LINENO: checking if ld accepts -search_paths_first flag" >&5
 echo $ECHO_N "checking if ld accepts -search_paths_first flag... $ECHO_C" >&6
 if test "${tcl_cv_ld_search_paths_first+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-	        hold_ldflags=$LDFLAGS
-	        LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
-	        cat >conftest.$ac_ext <<_ACEOF
+		hold_ldflags=$LDFLAGS
+		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+		cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
@@ -8271,26 +8495,26 @@
 
 tcl_cv_ld_search_paths_first=no
 fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
-	        LDFLAGS=$hold_ldflags
+		LDFLAGS=$hold_ldflags
 fi
 echo "$as_me:$LINENO: result: $tcl_cv_ld_search_paths_first" >&5
 echo "${ECHO_T}$tcl_cv_ld_search_paths_first" >&6
 	    if test $tcl_cv_ld_search_paths_first = yes; then
-	        LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
 	    fi
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
 
-	    # TEA specific: for Tk extensions, remove -arch ppc64 from CFLAGS
-	    # for fat builds, as neither TkAqua nor TkX11 can be built for 64bit
-	    # at present (no 64bit GUI libraries).
-	    test $do64bit_ok = no && test -n "${TK_BIN_DIR}" && \
-	        CFLAGS="`echo "$CFLAGS" | sed -e 's/-arch ppc64/-arch ppc/g'`"
+	    # TEA specific: for Tk extensions, remove 64-bit arch flags from
+	    # CFLAGS et al. for combined 32 & 64 bit fat builds as neither
+	    # TkAqua nor TkX11 can be built for 64-bit at present.
+	    test "$fat_32_64" = yes && test -n "${TK_BIN_DIR}" && for v in CFLAGS CPPFLAGS LDFLAGS; do
+		eval $v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'; done
 	    ;;
 	NEXTSTEP-*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="cc -nostdlib -r"
 	    SHLIB_LD_LIBS=""
@@ -8628,10 +8852,12 @@
 
     if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
 	{ echo "$as_me:$LINENO: WARNING: 64bit support being disabled -- don't know magic for this platform" >&5
 echo "$as_me: WARNING: 64bit support being disabled -- don't know magic for this platform" >&2;}
     fi
+
+
 
     # Step 4: disable dynamic loading if requested via a command-line switch.
 
     # Check whether --enable-load or --disable-load was given.
 if test "${enable_load+set}" = set; then
@@ -10098,10 +10324,11 @@
 LIBOBJS=$ac_libobjs
 
 LTLIBOBJS=$ac_ltlibobjs
 
 
+CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""
 
 : ${CONFIG_STATUS=./config.status}
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
 { echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5