Index: trunk/src/global.h
===================================================================
--- trunk/src/global.h	(revision 19)
+++ trunk/src/global.h	(revision 20)
@@ -121,6 +121,7 @@
   unsigned long f;		/* generic flags */
   unsigned char t[(MAX_LAYER + 1) / 2];	/* thermals */
   unsigned char q;	/* square geometry flag */
+  unsigned char int_conn_grp;
 } FlagType, *FlagTypePtr;
 
 #ifndef __GNUC__
Index: trunk/src/strflags.c
===================================================================
--- trunk/src/strflags.c	(revision 19)
+++ trunk/src/strflags.c	(revision 20)
@@ -421,7 +421,12 @@
 		rv.Flags.q=atoi(fp+6);
 	}
       else
+      if (flen == 7 && memcmp (fp, "intconn", 7) == 0)
 	{
+		rv.Flags.int_conn_grp=atoi(fp+8);
+	}
+      else
+	{
 	  for (i = 0; i < n_flagbits; i++)
 	    if (flagbits[i].nlen == flen
 		&& memcmp (flagbits[i].name, fp, flen) == 0)
@@ -529,6 +534,15 @@
 				len+=2;
     }
 
+  if (flags.int_conn_grp > 0)
+    {
+      len += sizeof ("intconn(.)");
+			if (flags.q > 9)
+				len++;
+			if (flags.q > 99)
+				len++;
+    }
+
   bp = buf = alloc_buf (len + 2);
 
   *bp++ = '"';
@@ -566,6 +580,13 @@
 			bp += sprintf(bp, "shape(%d)", flags.q);
     }
 
+  if (flags.int_conn_grp > 0)
+    {
+			if (bp != buf + 1)
+				*bp++ = ',';
+			bp += sprintf(bp, "intconn(%d)", flags.int_conn_grp);
+    }
+
   *bp++ = '"';
   *bp = 0;
   return buf;