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diff -urN graphviz-2.16.orig/configure graphviz-2.16/configure
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--- graphviz-2.16.orig/configure	2007-11-09 23:41:41.000000000 -0600
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+++ graphviz-2.16/configure	2008-01-03 08:52:00.000000000 -0600
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@@ -28003,8 +28003,8 @@
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 if test "x$TCLSH" = "x"; then
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-    # Extract the first word of "tclsh8.4", so it can be a program name with args.
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-set dummy tclsh8.4; ac_word=$2
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+    # Extract the first word of "tclsh8.5", so it can be a program name with args.
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+set dummy tclsh8.5; ac_word=$2
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 { echo "$as_me:$LINENO: checking for $ac_word" >&5
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 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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 if test "${ac_cv_path_TCLSH+set}" = set; then
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@@ -28044,8 +28044,8 @@
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     if test "x$TCLSH" = "x"; then
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-        # Extract the first word of "tclsh8.3", so it can be a program name with args.
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-set dummy tclsh8.3; ac_word=$2
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+        # Extract the first word of "tclsh8.4", so it can be a program name with args.
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+set dummy tclsh8.4; ac_word=$2
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 { echo "$as_me:$LINENO: checking for $ac_word" >&5
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 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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 if test "${ac_cv_path_TCLSH+set}" = set; then
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@@ -28085,7 +28085,48 @@
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         if test "x$TCLSH" = "x"; then
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-            # Extract the first word of "tclsh", so it can be a program name with args.
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+            # Extract the first word of "tclsh8.3", so it can be a program name with args.
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+set dummy tclsh8.3; ac_word=$2
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+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
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+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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+if test "${ac_cv_path_TCLSH+set}" = set; then
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+  echo $ECHO_N "(cached) $ECHO_C" >&6
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+else
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+  case $TCLSH in
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+  [\\/]* | ?:[\\/]*)
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+  ac_cv_path_TCLSH="$TCLSH" # Let the user override the test with a path.
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+  ;;
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+  *)
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+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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+for as_dir in $PATH
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+do
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+  IFS=$as_save_IFS
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+  test -z "$as_dir" && as_dir=.
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+  for ac_exec_ext in '' $ac_executable_extensions; do
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+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
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+    ac_cv_path_TCLSH="$as_dir/$ac_word$ac_exec_ext"
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+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
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+    break 2
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+  fi
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+done
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+done
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+IFS=$as_save_IFS
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+
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+  ;;
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+esac
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+fi
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+TCLSH=$ac_cv_path_TCLSH
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+if test -n "$TCLSH"; then
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+  { echo "$as_me:$LINENO: result: $TCLSH" >&5
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+echo "${ECHO_T}$TCLSH" >&6; }
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+else
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+  { echo "$as_me:$LINENO: result: no" >&5
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+echo "${ECHO_T}no" >&6; }
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+fi
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+
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+
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+            if test "x$TCLSH" = "x"; then
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+                # Extract the first word of "tclsh", so it can be a program name with args.
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 set dummy tclsh; ac_word=$2
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 { echo "$as_me:$LINENO: checking for $ac_word" >&5
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 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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@@ -28125,6 +28166,7 @@
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 fi
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+            fi
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         fi
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     fi
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     if test "x$TCLSH" = "x"; then
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@@ -28413,8 +28455,8 @@
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 fi
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     if test "x$WISH" = "x"; then
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-        # Extract the first word of "wish8.4", so it can be a program name with args.
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-set dummy wish8.4; ac_word=$2
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+        # Extract the first word of "wish8.5", so it can be a program name with args.
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+set dummy wish8.5; ac_word=$2
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 { echo "$as_me:$LINENO: checking for $ac_word" >&5
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 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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 if test "${ac_cv_path_WISH+set}" = set; then
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@@ -28454,8 +28496,8 @@
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         if test "x$WISH" = "x"; then
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-    	    # Extract the first word of "wish8.3", so it can be a program name with args.
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-set dummy wish8.3; ac_word=$2
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+    	    # Extract the first word of "wish8.4", so it can be a program name with args.
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+set dummy wish8.4; ac_word=$2
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 { echo "$as_me:$LINENO: checking for $ac_word" >&5
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 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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 if test "${ac_cv_path_WISH+set}" = set; then
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@@ -28495,7 +28537,48 @@
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     	    if test "x$WISH" = "x"; then
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-                # Extract the first word of "wish", so it can be a program name with args.
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+                # Extract the first word of "wish8.3", so it can be a program name with args.
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+set dummy wish8.3; ac_word=$2
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+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
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+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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+if test "${ac_cv_path_WISH+set}" = set; then
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+  echo $ECHO_N "(cached) $ECHO_C" >&6
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+else
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+  case $WISH in
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+  [\\/]* | ?:[\\/]*)
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+  ac_cv_path_WISH="$WISH" # Let the user override the test with a path.
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+  ;;
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+  *)
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+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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+for as_dir in $PATH
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+do
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+  IFS=$as_save_IFS
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+  test -z "$as_dir" && as_dir=.
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+  for ac_exec_ext in '' $ac_executable_extensions; do
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+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
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+    ac_cv_path_WISH="$as_dir/$ac_word$ac_exec_ext"
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+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
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+    break 2
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+  fi
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+done
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+done
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+IFS=$as_save_IFS
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+
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+  ;;
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+esac
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+fi
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+WISH=$ac_cv_path_WISH
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+if test -n "$WISH"; then
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+  { echo "$as_me:$LINENO: result: $WISH" >&5
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+echo "${ECHO_T}$WISH" >&6; }
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+else
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+  { echo "$as_me:$LINENO: result: no" >&5
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+echo "${ECHO_T}no" >&6; }
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+fi
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+
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+
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+    	        if test "x$WISH" = "x"; then
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+                    # Extract the first word of "wish", so it can be a program name with args.
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 set dummy wish; ac_word=$2
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 { echo "$as_me:$LINENO: checking for $ac_word" >&5
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 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
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@@ -28535,6 +28618,7 @@
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 fi
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+                fi
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             fi
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         fi
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     fi
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@@ -28557,7 +28641,7 @@
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     WISH_EXEC_PREFIX=`echo $WISH|sed -e 's%/bin/wish.*$%%'`
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     if test -f ${WISH_EXEC_PREFIX}/include/tk${TK_VERSION_FOUND}/tk.h; then
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-	TK_INCLUDES="-I${WISH_EXEC_PREFIX}/include/tk${TK_VERSION_FOUND} -I${WISH_EXEC_PREFIX}/include/tk${TK_VERSION_FOUND}/generic"
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+	TK_INCLUDES="-I${WISH_EXEC_PREFIX}/include/tk${TK_VERSION_FOUND} -I${WISH_EXEC_PREFIX}/include/tk${TK_VERSION_FOUND}/generic -I${WISH_EXEC_PREFIX}/include/tk${TK_VERSION_FOUND}/unix"
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     else
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         if test "x${WISH_EXEC_PREFIX}" != "x/usr" -a -f ${WISH_EXEC_PREFIX}/include/tk.h; then
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 	    TK_INCLUDES=-I${WISH_EXEC_PREFIX}/include
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@@ -34721,7 +34805,7 @@
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 # -----------------------------------
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 # tkInt.h
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 if test -f "$TK_SRC_DIR/generic/tkInt.h"; then
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-TKINT_INCLUDES="-I$TK_SRC_DIR/generic"
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+TKINT_INCLUDES="-I$TK_SRC_DIR/generic -I$TK_SRC_DIR/unix"
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 else
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 if test -f "/usr/include/tkInt.h"; then
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 TKINT_INCLUDES=""