diff -up frysk-0.4/frysk-sys/frysk/sys/cni/Errno.cxx.gccjint frysk-0.4/frysk-sys/frysk/sys/cni/Errno.cxx
--- frysk-0.4/frysk-sys/frysk/sys/cni/Errno.cxx.gccjint	2010-03-29 17:19:01.000000000 -0400
+++ frysk-0.4/frysk-sys/frysk/sys/cni/Errno.cxx	2010-03-29 17:22:06.000000000 -0400
@@ -291,8 +291,15 @@ verifyBounds (jbyteArray bytes, jint sta
     throw new java::lang::ArrayIndexOutOfBoundsException ();
   if (length < 0)
     throw new java::lang::ArrayIndexOutOfBoundsException ();
-  if (start + length < 0)
+#if 0
+  jint end = start + length;
+#else
+  // Work around GCC bug where test for (MAX_INT+1)<0 fails - the
+  // arrithmetic should have wrapped the value to -ve.
+  long end = start + length;
+#endif
+  if (end < 0)
     throw new java::lang::ArrayIndexOutOfBoundsException ();
-  if (start + length > bytes->length)
+  if (end > bytes->length)
     throw new java::lang::ArrayIndexOutOfBoundsException ();
 }