diff -Ndur graphviz-2.38.0/cmd/gvmap/gvmap.sh graphviz-2.38.0-fix-gvmap/cmd/gvmap/gvmap.sh
--- graphviz-2.38.0/cmd/gvmap/gvmap.sh	2014-04-13 23:40:25.000000000 +0300
+++ graphviz-2.38.0-fix-gvmap/cmd/gvmap/gvmap.sh	2014-11-17 05:10:56.554829928 +0200
@@ -60,41 +60,41 @@
       FLAGS3="$FLAGS3 -o$OPTARG"
     ;;
   :)
-    print -u 2 $OPTARG requires a value
+    echo "$OPTARG requires a value" >&2
     exit 2
     ;;
   \? )
-    if [[ "$OPTARG" == '?' ]]
+    if [ "$OPTARG" = '?' ]
     then
       getopts -a gvmap "$OPTSTR" x '-?'
       exit 0
     else
-      print -u 2 "gvmap: unknown flag $OPTARG - ignored"
+      echo "gvmap: unknown flag $OPTARG - ignored" >&2
     fi
     ;;
   esac
 done
 shift $((OPTIND-1))
 
-if [[ $# == 0 ]]
+if [ $# = 0 ]
 then
-  if [[ -n $VERBOSE ]]
+  if [ -n "$VERBOSE" ]
   then
-    print -u 2 "$LAYOUT -Goverlap=prism $FLAGS1 | gvmap $FLAGS2 | neato -n2 $FLAGS3"
+    echo "$LAYOUT -Goverlap=prism $FLAGS1 | gvmap $FLAGS2 | neato -n2 $FLAGS3" >&2
   fi
   $LAYOUT -Goverlap=prism $FLAGS1 | gvmap $FLAGS2 | neato -n2 $FLAGS3
 else
-  while (( $# > 0 ))
+  while [ $# -gt 0 ]
   do
-    if [[ -f $1 ]]
+    if [ -f "$1" ]
     then
-      if [[ -n $VERBOSE ]]
+      if [ -n "$VERBOSE" ]
       then
-        print -u 2 "$LAYOUT -Goverlap=prism $FLAGS1 $1 | gvmap $FLAGS2 | neato -n2 $FLAGS3"
+        echo "$LAYOUT -Goverlap=prism $FLAGS1 $1 | gvmap $FLAGS2 | neato -n2 $FLAGS3" >&2
       fi
       $LAYOUT -Goverlap=prism $FLAGS1 $1 | gvmap $FLAGS2 | neato -n2 $FLAGS3
     else
-      print -u 2 "gvmap: unknown input file $1 - ignored"
+      echo "gvmap: unknown input file $1 - ignored" >&2
     fi
     shift
   done