--- a/doodle/core/backtrace.d	Wed Oct 06 13:03:38 2010 +1030
+++ b/doodle/core/backtrace.d	Sun Feb 20 22:24:36 2011 +1030
@@ -72,7 +72,15 @@
 
         override string toString() const { return null; }   // Why does toString require overriding?
 
-        override int opApply(scope int delegate(ref char[]) dg) {
+        override int opApply( scope int delegate(ref char[]) dg) {
+            return opApply( (ref size_t, ref char[] buf)
+                           {
+                           return dg( buf );
+                           } );
+        }
+
+
+        override int opApply(scope int delegate(ref size_t, ref char[]) dg) {
             // NOTE: The first 5 frames with the current implementation are
             //       inside core.runtime and the object code, so eliminate
             //       these for readability.
@@ -80,17 +88,18 @@
             int ret = 0;
 
             for(int i = FIRSTFRAME; i < numframes; ++i) {
+                size_t pos = i - FIRSTFRAME;
                 char[] text = framelist[i][0 .. strlen(framelist[i])];
 
-                int a = text.lastIndexOf('(');
-                int b = text.lastIndexOf('+');
+                auto a = text.lastIndexOf('(');
+                auto b = text.lastIndexOf('+');
 
                 if (a != -1 && b != -1) {
                     ++a;
                     text = format("%s%s%s", text[0..a], demangle(text[a..b].idup), text[b..$]).dup;
                 }
 
-                ret = dg(text);
+                ret = dg(pos, text);
                 if (ret)
                     break;
             }